81results about How to "Improve analysis and detection efficiency" patented technology

The invention discloses a method and a device for rapidly and objectively distinguishing real and counterfeit cigarettes. The method comprises the following steps: acquiring a weightlessness curve of a to-be-detected cigarette through thermogravimetric analysis; inquiring a standard weightlessness curve related to the to-be-detected cigarette; acquiring the similarity of the to-be-detected cigarette according to the weightlessness curve of the to-be-detected cigarette and the standard weightlessness curve; judging whether the similarity of the to-be-detected cigarette is greater than a predetermined threshold value; judging the to-be-detected cigarette to be a counterfeit cigarette if the similarity of the to-be-detected cigarette is greater than the threshold value; judging the to-be-detected cigarette to be a real cigarette if the similarity of the to-be-detected cigarette is lower than or equal to the threshold value. According to the invention, real and counterfeit cigarettes are identified through thermogravimetric analysis, the cigarettes are not needed to be subjected to complicated pretreatment, no chemical agent is used, so that the system error and the personal error are greatly reduced, the automatic sample feeding can be realized, a large quantity of samples can be analyzed, and the efficiency of analysis and detection is greatly improved.

The invention discloses a domain name resolution detection method, a domain name resolution detection device and a server. The server inquires a first address list according to domain names included in a domain name resolution request sent by a client terminal and obtains a first IP address list corresponding to the domain names. The first IP address list stores IP addresses which are currently provided by multiple network operators respectively and correspond to the domain names; a second address list is inquired according to the domain names, a second IP address list corresponding to the domain names is obtained, and the second IP address list stores IP addresses which are preset by the website side server and provided by multiple network operators and correspond to the domain names; all the IP addresses in the first IP address list are matched with all the IP addresses in the second IP address list, and a matched result is sent to the client terminal. The resolution detection efficiency of the domain names can be improved.

The invention relates to a deoxyribonucleic acid (DNA) fragment amplification and quantitative detection system based on closed reactors, belonging to the technical field of molecular biology detection systems. The DNA fragment amplification and quantitative detection system comprises an amplification unit. A group of closed reactors are arranged in the amplification unit in a matching way. An exciting light device and a fluorescence detection device are arranged on one side of each closed reactor in a matching way. A transmission device which is used for providing power to the closed reactors is arranged at the bottom of the amplification unit in a matching way. The transmission device is connected with a motor. Two or more than two independent constant-temperature areas at different temperatures are arranged in the amplification unit in a matching way. By adopting the technique, the thermal response of reagent samples is improved, the polymerase chain reaction process is accelerated and the experimental period is greatly shortened; the degradation of DNA enzymes is reduced, the amplification sensitivity, accuracy and reproducibility of the samples are improved and the reagent detection linearity range is expanded; the pollution risk during experiments is reduced; the optical path is shortened and the sensitivity and the low background of optical detection are improved; and the low-cost multi-sample multi-channel detection is realized.

The invention relates to a fully-automatic chemiluminescence enzyme immunity analyzer which comprises a fixed working platform, a porous plate, an incubation oscillator, a sample rack, a detection analysis device, a plate washing device and a three-axis movement mechanism, wherein the incubation oscillator and the sample rack are arranged on the upper surface of the fixed working platform; the detection analysis device and the plate washing device are arranged at one side of the fixed working platform, and the detection analysis device comprises a chemiluminescence analyzer and an enzyme immunity analyzer; the three-axis movement mechanism is arranged at the periphery of the fixed working platform, and a sample adding device and a grab mechanism are arranged on the three-axis movement mechanism. The fully-automatic chemiluminescence enzyme immunity analyzer is capable of simultaneously performing an enzyme immunity experiment and a chemiluminescence experiment, and also separately performing the enzyme immunity experiment and the chemiluminescence experiment; meanwhile, by adopting a modular design, a fully-automatic experiment is realized, the experiment speed is high, the detection analysis efficiency is high, and the demand of the modern medicine development is met; in addition, a grab is located with a plate frame through a locating structure, thus rapid grabbing and transferring are realized; meanwhile, a 96-needle plate washing head is adopted in the plate washing device, thus porous rapid cleaning is realized.

The invention discloses a separation and detection method of an acetylcysteine enantiomer. The method comprises the following steps: performing derivatization reaction in an organic solvent by using aderivatization reagent, N-acetyl-L-cysteine and an enantiomer thereof, so as to prepare a derivative product of N-acetyl-L-cysteine and isomers thereof; and performing separation and detection by using normal phase high-performance liquid chromatography, wherein the derivatization reagent is isocyanate. According to the separation and detection method of the acetylcysteine enantiomer, the derivatization reagent, N-acetyl L-cysteine and the enantiomer thereof are reacted, so that the mutual attraction effect between the stationary phase in the chromatographic column and the chiral substance tobe separated is increased according to the chiral separation mechanism by adopting precolumn derivatization normal phase high-performance liquid chromatography, and the chiral separation selectivityis effectively improved. The method is simple and convenient to operate, short in consumption time and easy to popularize and use.

The invention discloses a multi-mode ionization source, a multi-mode ionization source system, a mass spectrum, and a method for analyzing a to-be-tested sample with the mass spectrum. The multi-mode ionization source comprises a capillary tube, an internal electrode, an insulating tube, an external electrode, a tee fitting, an insulating sleeve, a metal ring, a conductive member and a regulating member, wherein the outlet of the internal electrode in the axial direction is located between the insulating tube and the outlet of the outer electrode. The multi-mode ionization source can be easily switched between two modes of electrospray ionization and plasma ionization, which can effectively improve the efficiency of analysis and detection, avoid the complicated dismounting process of the ionization source and realize the highly sensitive detection of components in the complex sample. The multi-mode ionization source is especially suitable for a variety of polar and non-polar small molecule compounds.

The invention discloses a green tea aroma dynamic fingerprint analysis and aroma type discrimination method based on ion mobility spectrometry, and belongs to the technical field of food quality detection. The method comprises the following steps: (1) setting acetone-assisted positive ion mode photoionization ion mobility spectrometry detection conditions; (2) weighing a tea sample, adopting headspace sample injection, and collecting a dynamic fingerprint spectrum which is continuously purged for 3-8 minutes; (3) performing dimension reduction processing on the multi-dimensional original dataof the dynamic fingerprint spectrum obtained in the step (2) to obtain a preprocessed data matrix; and (4) distinguishing and distinguishing different fragrances by utilizing the preprocessed data matrix obtained in the step (3). Green tea sample pretreatment is not needed, so that the detection and analysis time of the tea sample is saved; through ion mobility spectrometry and continuous purgingsample injection, all spectrogram information in a certain period of time can be obtained at the same time, and dynamic fingerprint information is more comprehensive and accurate; and five different fragrances of faint scent, sweet fragrance, tender fragrance, tender chestnut fragrance and cooked chestnut fragrance of the green tea are distinguished and judged.

The invention relates to a rotary iron ore analyzing device, which belongs to the field of chemical analysis equipment of iron ores. A weighing platform (4), a heating platform (7) and a cooling platform (6) are at least arranged at the periphery of a rotary workbench, wherein a flask (3) is placed on one platform of the rotary workbench; an arc-shaped left clamping arm (14) and an arc-shaped right clamping arm (15) are arranged at two sides of the flask (3) and are connected with a clamping arm driving mechanism; the clamping arm driving mechanism is used for driving the left clamping arm (14) and the right clamping arm (15) to swing oppositely so as to be tightly clamped and also used for lifting the flask (3) so as to enable the bottom of the flask (3) to be apart from the rotary workbench; a fixing workbench (1) is fixed above the flask (3); a plurality of reagent dropping bottles (8) in which different indicators are contained are fixed on the fixing workbench (1); the flask is always positioned below each reagent dropping bottle; and the flask does not need to be moved during the dropping of various reagents and the adding of water. The rotary iron ore analyzing device realizes improvement in analysis detection efficiency, and is high in degree of automation as well as safe and convenient to operate.

The invention discloses a susceptible genotype detection method, which can be used for diagnosing type I neurofibromatosis diseases. The method comprises the steps of collecting a to-be-detected sample, capturing an exon region sequence of the to-be-detected sample, and forming original sequencing data; obtaining a sequence meeting a quality requirement according to a quality detection result of each sequence in the original sequencing data, and forming preliminary adjustment data; performing comparison according to each sequence in the preliminary adjustment data and a reference genomic sequence to obtain a comparison result, and forming mutation detection data; determining a gene sequence with a mutation gene in the mutation detection data and a mutation site corresponding to the mutation gene; and performing functional annotation on the mutation site, and determining whether the to-be-detected sample contains a to-be-detected susceptible genotype or not. According to the susceptible genotype detection method, whether the mutation site of the to-be-detected mutation gene exists in the to-be-detected sample or not can be efficiently detected, thereby providing guidance for clinical diagnosis of the diseases and prenatal screening.

The invention relates to the technical field of jade detection, in particular to a jade identification method based on a terahertz time-domain spectroscopy technology. The method comprises the following steps: S100, establishing a jade classification identification model; S200, preparing a to-be-identified jade sample; S300, measuring a terahertz time domain signal of the to-be-identified jade sample; S400, calculating characteristic parameters of the to-be-identified jade sample; and S500, comparing the characteristic parameter of the to-be-identified jade sample with each model in the jade classification identification model to obtain an identification result. To be specific, the S100 includes: S101, preparing a natural jade sample and an artificially processed jade sample; S102, measuring terahertz time domain signals of the natural jade sample and the artificially processed jade sample; S103, calculating characteristic parameters of the natural jade sample and the artificially processed jade sample; and S104, on the basis of the characteristic parameters, forming a jade classification identification model based on the characteristic parameters. With the provided jade identification method based on the terahertz time-domain spectroscopy technology, problems of incomprehensive detection and low efficiency in the prior art are solved.

The invention relates to the detection and analysis of samples such as blood, urine and stool, in particular to a sample analysis management method comprising the following steps of performing class coding for each pipe rack, and performing position coding on the position of each test tube on the pipe rack; scanning the class code on the pipe rack, then scanning the corresponding position code onthe pipe rack, and displaying the class code and position code information; sampling and analyzing, by an analyzer, the sample in the corresponding test tube on the position code, and displaying the information that whether has the sampling analysis completed on the corresponding position code information. The method provided by the invention encodes the pipe rack, performs position coding on theposition of each test tube on the pipe rack, and simultaneously scans and analyzes by using the scanning system of the original analyzer, which can not only determine the position of each test tube, but also save the cost, improve the efficiency and judge missed samples in real time by displaying the information that whether the sampling analysis of the respective test tubes is completed with no need of a pre-processing system.

The invention discloses a fruit and vegetable multi-pesticide residue rapid detecting method. The fruit and vegetable multi-pesticide residue rapid detecting method comprises following steps: a 15+-0.5g pre-treated sample is weighed, and is delivered into a reagent bottle, 90ml of ethyl acetate is added, an obtained mixture is mixed to be uniform via shaking, sodium bicarbonate and anhydrous sodium sulfate are added, and an obtain mixed material is mixed to be uniform via shaking; the reagent bottle is subjected to water batch at 30+-3 DEG C, and is subjected to homogenizing for 1min in a homogenizer; an upper layer clear liquid in the reagent bottle is filtered, and a filtrate is collected; two parts of the filtrate are delivered into two pear-shaped bottles respectively, and are both subjected to water bath at 35+-3 DEG C; one part of filtrate is subjected to vacuum concentration to dry so as to obtain a residue, and the other part of filtrate is subjected to vacuum concentration toclose to dry. The fruit and vegetable multi-pesticide residue rapid detecting method can be used for detection of most fruit and vegetable based samples; a pre-treatment step is adopted, pesticide objects of different properties are detected using a gas phase liquid phase tandom mass spectrometer, the using amount of chemical reagents in the pre-treatment process is reduced, pre-treatment time isshortened, detection analysis efficiency is increased, and accurate and reliable analysis results are obtained at the same time.

The invention relates to a method for measuring molten salt chloride residues and recycling chemical components in regenerated substances, and belongs to the technical field of detection analysis of element component content. The method comprises the following steps: weighing a to-be-measured sample, dissolving the to-be-measured sample with a dilute nitric acid solution, adding water to dilute in a special solid-liquid dilution ratio to form a to-be-measured solution; and then, measuring the content of chemical elements such as potassium, iron, magnesium, manganese, calcium, chromium, nickel, vanadium, titanium, copper and lead in the to-be-measured solution through an inductive coupling plasma atomic emission spectroscopy. The method disclosed by the invention can be used for simultaneously obtaining the contents of molten salt chloride residues and the chemical element components in the recycled generated substance sample by one step, simple, quick, few in operation step, few in disturbing influence factor, high in measuring efficiency for the substrate components and trace impurities, short in inspection period and low in analysis cost.

The invention provides full-automatic biological sample analysis integrated equipment and a control method thereof. The integrated equipment comprises a test tube storage unit, a biological sample pretreatment unit, a biological sample coating unit, a drying unit, a dyeing unit and an image acquisition unit which are sequentially connected and arranged on a supporting seat; the biological sample transfer device is arranged among the test tube storage unit, the biological sample pretreatment unit and the biological sample coating unit and is used for position switching of biological samples among the test tube storage unit, the biological sample pretreatment unit and the biological sample coating unit; and the glass slide transferring unit, the drying unit, the dyeing unit, a glass slide box and the image acquisition unit are used for switching the positions of the glass slides among the drying unit, the dyeing unit and the image acquisition unit. Pretreatment, slide preparation, dyeing and analysis of biological samples are all automatically operated, the working intensity of medical personnel is reduced, and the probability of biological sample pollution is also reduced.

The invention discloses a microfluidic device for fluid detection. The microfluidic device includes a substrate, and a third precipitation material and a fourth precipitation material that are deposited on the substrate in order. Also, the microfluidic device is provided with one or more detection units. One side of the microfluidic device has one or more grooves, in which one or more microflow channels running through the microfluidic device are disposed.

The invention discloses a measuring device and method for improving the plating uniformity analysis efficiency. The measuring device is a flat plate which is of the same size as a plate to be measured. Through holes are arranged in the flat plate along the long side direction of the flat plate and in length positions as follows: 1 / 64, 1 / 32, 1 / 16, 1 / 8, 1 / 4, 1 / 2, 3 / 4, 7 / 8, 15 / 16, 31 / 32, and 63 / 64. The through holes of the measuring device are set according to the electric field distribution during whole-plating of the plate to be measured. By using the measuring device, the analysis efficiency of the electroplating uniformity of a circuit board can be improved, and the accuracy of the electroplating copper thickness uniformity analysis result can be greatly improved.

The invention discloses a chemiluminescence immunoassay device. The chemiluminescence immunoassay device comprises a shell, wherein a base is arranged at the bottom of the inner side of the shell; a first sliding rail is arranged at the top of the base; a first buffer mechanism and a first roller are arranged on the inner wall of the first sliding rail, and a placement frame and a detection plateare arranged in the first sliding rail in a matching manner; a plurality of second rollers and a second buffer mechanism are arranged at one end of the bottom of the placement frame; a pull rod is arranged at one end of the placement frame; a latch is arranged outside the shell; a lifting compartment and a sliding compartment are arranged at the top of the first sliding rail; a second sliding railand a rack are vertically arranged in the center of the lifting compartment; a first motor is arranged on one side of the second sliding rail; a gear is arranged at the output end of the first motor;a connecting plate and a second motor are arranged at the bottom of the first motor; an output shaft of the second motor is sleeved with a rotary shaft and a plurality of connecting rods; a control box is arranged on one side of the top of the base; a supporting rod and a horizontal rod are arranged at the top of the control box; a detection opening is formed in the bottom of one end of the horizontal rod. The device is simple in structure, convenient and fast to operate, high in detection analysis efficiency, and long in service life.

The invention discloses a method for rapidly detecting and analyzing the quality of sericite. The method comprises the following steps: acquiring a physical structure of a sericite sample to be detected by adopting an X-ray diffraction analyzer; acquiring the element content of the sericite sample to be detected by adopting a microcomputer multi-element analyzer, and acquiring spectral information of the sericite sample to be detected by adopting a spectrum analyzer; analyzing the physical structure, element content and spectral information of the sericite sample to be detected by adopting an optimal correction model, so as to obtain a quality analysis result of the sericite sample to be detected, wherein a process of establishing the optimal correction model comprises the following step: S1: acquiring the physical structures of the plurality of sericite samples by the X-ray diffraction analyzer under the conditions that the working voltage is 38kV-42kV, the working current is 28mA-32mA and the wavelength is 10-20 angstroms, so as to obtain information of the plurality of physical structures. The method disclosed by the invention can be used for comprehensively and rapidly detecting and analyzing the quality of the sericite, and is low in cost and high in detection and analysis efficiency.

The invention discloses a chemiluminescence immunity analyzer incubator which comprises a box body, wherein an opening is formed in the side face of the box body; a plurality of parallel partition boards are arranged on the upper surface of a base plate of the box body; the partition boards are perpendicular with the base plate of the box body; a reaction cup base mounting groove is formed between every two adjacent partition boards; and one end of the reaction cup base mounting groove is communicated with the opening in the side face of the box body. The incubator disclosed by the invention has significant effects that strip-shaped reaction cup strips are placed stably, and blood and reaction reagents in reaction cups can react rapidly and sufficiently by maintaining temperature inside the incubator to be constant and by shaking the box body, so that detection and analysis results are accurate and reliable; and the incubator can wash and inject a substrate timely, so as to improve the accuracy of the detection result and increase detection and analysis efficiency.

The invention discloses a low-cost and high-sensitivity laser probe element analyzer. The laser probe element analyzer comprises a pulsed laser, a beam splitter, a laser energy meter probe, a digital delay pulse generator, a data acquisition card, a laser energy meter, a computer, a first convergent lens and a photomultiplier; the first convergent lens is located on the reflecting optical path of the beam splitter; a plasma signal acquisition optical system is used for acquiring laser plasma signals on one side of a detected object in the horizontal direction and comprises a second convergent lens, an adjustable slit, a third convergent lens, a narrow band filter and a fourth convergent lens which are sequentially arranged, the width of the adjustable slit can be continuously adjusted within the range from 0 mm to 10 mm, and the adjustable slit is used for conducting spatial selection on plasma emission optical signals; a light inlet of the photomultiplier is located at the focus of the fourth convergent lens. The low-cost and high-sensitivity laser probe element analyzer is especially suitable for on-line detection on substance components, has the advantages of being low in cost and high in detection sensitivity and detection speed and has a wide application prospect and market.

The invention discloses a method for simultaneously detecting AZA1, AZA2 and AZA3 in bivalve aquatic products. According to the method, liquid-liquid extraction and hybrid anion exchange reversed phase adsorption solid-phase extraction and purification are utilized to perform sample treatment on scallops, oysters, variegated clams and other bivalve aquatic products, and an analysis and detection method for simultaneously determining three main azaspiracid shellfish poisons AZA1, AZA2 and AZA3 in a sample through a liquid chromatography-tandem mass spectrometry (LC-MS / MS) method is established; and furthermore, the average recovery rate of AZAs is more than 80%, and the relative standard deviation (RSD) is less than 12%. The method disclosed by the invention has the characteristics of high speed, high efficiency, sensitivity and accuracy.

The invention belongs to the technical field of a pressure regulating structure design of a gas analyzer, and in particular to a gas analyzer pressure regulating structure, comprising a first connecting pipe, a second connecting pipe, an air pump, a third connecting pipe, and a fourth connecting pipe which are sequentially connected. A fifth connecting pipe, a gas analyzer, and a sixth connectingpipe are sequentially connected. The fifth connecting pipe is respectively connected to the first connecting pipe and the second connecting pipe through a first pipe tee. The sixth connection pipe isrespectively connected to the third connecting pipe and the fourth connecting pipe through a second tube tee. A first restrictor valve is mounted on the fifth connecting pipe for defining an air outlet pressure of the gas analyzer. By mounting the first restrictor valve on the fifth connecting pipe, the invention can effectively control the air pressure of the pipeline, thereby creating a stable pressure environment for the gas analyzer, and has the characteristics of accurate measurement results.

The invention provides full-automatic biological sample analysis integrated equipment and a control method thereof. The integrated equipment comprises a test tube storage pretreatment unit, a biological sample coating unit, an automatic glass slide supply unit, a coating device cleaning unit, a drying unit, a dyeing unit and an image acquisition unit which are sequentially connected and arranged on a supporting seat; and the glass slide transfer unit is arranged among a glass slide box, the drying unit, the dyeing unit and the image acquisition unit and is used for switching the positions of glass slides for bearing biological samples among the glass slide box, the drying unit, the dyeing unit and the image acquisition unit. The pretreatment, flaking, dyeing and analysis of the biological sample are all automatically operated, the working intensity of medical personnel is reduced, and the probability of pollution of the biological sample is also reduced.

The invention discloses an analyzing and detecting method for the content of microelements in a dedicated ferric oxide powder standard sample. The method comprises the following steps: taking low-quality ferric oxide powder as the sample, and controlling the content of each microelement in the sample; accurately weighing the sample, adding concentrated hydrochloric acid, heating to dissolve, removing into a volumetric flask, and diluting with water so as to obtain a sample liquid; weighing 5 parts of high-purity iron powder, adding concentrated hydrochloric acid, heating to dissolve, respectively removing into five volumetric flasks, respectively adding a standard solution of each microelement according to different amount into the five volumetric flasks, diluting with water, agitating uniformly, and respectively carrying out spectral line intensity measurement on each microelement so as to obtain a working curve; uniformly mixing the sample liquid and measuring the line strength of each microelement, and obtaining the content of each microelement in the sample through the working curve. The content of each microelement in the ferric oxide powder standard sample, obtained by the method, satisfies the requirement of the microelement analysis and detection in the ferric oxide powder, and the method can be used for performing quality control in ferric oxide powder analysis and detection and used for evaluating and revising detecting instruments, and effectively improves the efficiency of analysis and detection.

The invention discloses a test board and method for etching uniformity analysis. The test board is a flat plate; the size of the flat plate is the same as that of a to-be-tested plate; the positions,above the length of 3 / 130, 5 / 104, 5 / 52, 1 / 2, 47 / 52, 99 / 104 and 127 / 130, of the short edge of the flat plate are each provided with one column of ten through holes in the long edge direction of the flat plate; and ten through holes in each column are sequentially positioned at the positions, above the length of 3 / 155, 5 / 124, 5 / 62, 77 / 310, 129 / 310, 181 / 310, 233 / 310, 57 / 62, 119 / 124 and 152 / 155, of the long edge of the flat plate. According to the test board, the through holes of the measuring points are designed according to the pool effect during etching, so that the detection and analysis efficiency of the etching uniformity can be improved, and the accuracy of an etching uniformity analysis result is greatly improved.

The invention relates to the technical field of data processing, in particular to a big data cleaning and denoising method and system for a power grid and a computer storage medium. Power equipment with abnormal power detection data at the same time node in two continuous time periods and the abnormal time node are stored in a maintenance report, the method is helpful for working personnel to carry out specific analysis and processing on the detection condition of the power equipment in the power grid data. According to the method, abnormal data with null numerical values in the power grid data are deleted before storage, missing power detection data items in the stored power grid data are filled with corresponding filling values, the analysis time of the power grid data is shortened, a data analysis result is not affected, and meanwhile, the abnormal data are stored in an abnormal marking mode, and a worker can conveniently analyze the abnormal power grid data, so that the problem that the detection and analysis efficiency of the power grid data is relatively low can be solved.

The invention discloses a detection analysis method of sodium thiocyanate. The method comprises the following steps: (1) preparing a sodium thiocyanate standard solution; (2) dividing milk samples into a detection sample and a sample to be labeled, adding the sodium thiocyanate standard solution into the sample to be labeled to obtain a labeled sample; (3) respectively adding a sodium thiocyanate detection reagent A into the detection sample and the labeled sample, shaking for uniformly mixing, collecting supernatant, adding a sodium thiocyanate reagent B, and uniformly shaking; and (4) comparing the detection sample with the labeled sample, observing and analyzing the color of the detection sample relative to the labeled sample, and determining the content of the sodium thiocyanate in the detection sample by virtue of a labeling amount of the labeled sample. The monitoring analysis method integrates the high speed of an ordinary kit detection method and high precision of a chromatographic analysis method, and has good effect for improving the detection and analysis efficiency and detection and analysis precision.

The invention discloses a kit and a detection method for detecting cyclosporine drug concentration in a dried blood spot sample, the kit comprises a kit body, a lining, a wide-mouth bottle, a first sample collection tube, a second sample collection tube and a third sample collection tube, the wide-mouth bottle is filled with a sample extraction liquid, the first sample collection tube is filled with a calibrator, and the second sample collection tube is filled with a sample extraction liquid. A quality control product is placed in the second sample collection tube, a blank quality control product is placed in the third sample collection tube, and glass fiber filter paper is arranged in the first sample collection tube, the second sample collection tube and the third sample collection tube and is used as a carrier of a standard product and the quality control product. The detection method based on the kit provided by the invention comprises the following steps: pretreating a sample, loading and detecting the sample by combining a liquid chromatography tandem mass spectrometer, and finally carrying out quantitative analysis on cyclosporine by adopting an internal standard method. According to the invention, the influence of hematocrit effect is avoided, the risk of occupational exposure is reduced, and the detection stability and the practicability of the kit are improved.

The present invention relates to a method for predicting cigarette combustion cone falling tendency. The method comprises following steps: taking a plurality of cigarettes of a same type, testing tobacco density distribution of each cigarette, and analyzing and calculating to obtain density difference between a highest density point and a lowest density point in a falling section of each cigarette; testing a combustion cone falling rate of each cigarette under same conditions, and obtaining the combustion cone falling rate of each cigarette; drawing a correlation curve between the combustioncone falling rate and the density difference of the cigarette model; and testing the tobacco density distribution of a cigarette to be tested of the same type, obtaining density difference between a highest density point and a lowest density point in a falling section of the cigarette, and calculating the combustion cone falling rate of the cigarette to be tested according to the correlation curve. The method firstly predicts the combustion cone falling rate of the cigarette through the tobacco density distribution, is simple and accurate, has high accuracy, and can greatly improve the efficiency of analysis and detection; and in addition, can mechanically reveal influence of the tobacco structure distribution on the cigarette combustion cone falling behavior.