9results about How to "Accurate detection means" patented technology

The invention discloses a method for accurately measuring the content of soluble suspended matters in a sodium aluminate solution, which comprises the following steps: (1) taking two parts of sodium aluminate solution in an aluminum oxide production process as two parts of samples, and keeping the temperature, the two parts of sodium aluminate solution being equal in amount; (2) filtering one sample to obtain filtrate and suspended matters; (3) adding ultrapure water into the other part of the sample, diluting to obtain a diluent, heating the diluent to 60 DEG C, stirring while heating until the solution is clarified, and then filtering to obtain filtrate and solid residues; (4) further comprising the following steps: a, drying the suspended matters in the step (2), weighing to obtain the total amount of the suspended matters, drying the solid residues in the step (3), and weighing to obtain the mass of insoluble suspended matters; calculating the content of the soluble suspended matters by adopting the following formula: the mass of the soluble suspended matters = the total amount of the suspended matters-the mass of the insoluble suspended matters; according to the method, the content of the soluble suspended matters in the sodium aluminate solution is accurately measured.

The invention relates to the field of medical diagnosis, in particular to seven interactive genes, a prediction system for predicting transformation of primary fast-moving eye sleep disorder (iRBD) to synucleinopathies and application of the seven interactive genes to preparation of a kit for predicting transformation of the iRBD to the synucleinopathies. According to the prediction system, the median of the model value is innovatively adopted as a critical point to distinguish the transformation risk, so that the prediction accuracy and reliability are remarkably improved. Compared with an existing prediction method, the method shows higher specificity and sensitivity, so that the system can accurately identify high-risk patient groups in the early stage of the disease course. The method has convenience and high efficiency in clinical application. By applying the prediction system to preparation of the kit, the clinical detection process is simplified, so that a doctor can quickly perform detection and obtain a result, and more effective management and treatment on an iRBD patient are realized.

The invention discloses a fluorescence photometric determination method for trace aluminum in internal cooling water of a high-voltage direct-current converter valve. The method comprises the following steps: adjusting the pH value of an internal cooling water sample of the high-voltage direct-current converter valve to 2.0-7.0; the method comprises the following steps: putting a preset amount of a pH-value-adjusted internal cooling water sample into a colorimetric tube, adding a pH-value buffer solution into the colorimetric tube, and adjusting the pH value of a reaction system to 4.0-5.0; the method comprises the following steps: adding an aluminum ion fluorescent probe compound solution into a colorimetric tube, fully mixing at room temperature, and standing for reaction, so that aluminum ions and an aluminum ion fluorescent probe compound are fully complexed to form a stable complex, thereby obtaining a reacted to-be-detected solution; and measuring the fluorescence intensity of the reacted liquid to be measured, and determining the aluminum ion concentration of the internal cooling water of the high-voltage direct-current converter valve according to the fluorescence intensity and a preset standard working curve. According to the invention, high-sensitivity, low-detection-limit and high-accuracy determination of trace aluminum in cold water in the high-voltage direct-current converter valve is realized.

The invention provides a primer group, a kit and a detection method for detecting five intestinal pathogens, and relates to the technical field of biotechnology, the primer group for detecting the five intestinal pathogens is characterized in that primers are respectively designed aiming at adenovirus 40, adenovirus 41, rotaid A group, norotype I and norotype I. The primer group further comprises an internal standard primer group aiming at an endogenous human housekeeping gene RnaseP, the five intestinal pathogens including adenovirus 40, adenovirus 41, rotaid A group, norotype I and norotype I can be detected at the same time, the limitation that a traditional detection method can only perform single detection is solved, the detection efficiency is improved, the detection time and cost are saved, the infection condition of a patient can be known more comprehensively, and the detection efficiency is improved through the elaborately designed and screened primer group. The high specificity and sensitivity to target pathogens are ensured, low-concentration pathogens can be accurately recognized and detected, the possibility of missed diagnosis and misdiagnosis is reduced, and powerful support is provided for early diagnosis and precise treatment of diseases.

The invention provides a targeted CD105 polypeptide molecular probe and application thereof, and belongs to the field of biomedical detection, the amino acid sequence of polypeptide CDP is as shown in SEQ ID NO.1, and the targeted CD105 polypeptide molecular probe is composed of the polypeptide CDP and a signal unit connected with the polypeptide CDP. The invention also provides an application of the molecular probe in preparation of a molecular imaging agent for CD105 expression abnormity related diseases. The polypeptide CDP targeting CD105 and the molecular probe provided by the invention have the advantages of high purity, small molecular weight, strong specificity, no immunogenicity, safety and reliability; the method can be used for detecting tumor progression by a non-invasive imaging technology, and predicting and evaluating drug resistance response and curative effect of a treated patient. A simple, convenient, rapid, economical and accurate detection means is provided for real-time monitoring of CD105 expression in the body of a patient and correlation of tumor grading, staging, metastasis and prognosis.

The application belongs to the technical field of gene detection, and particularly relates to specific primers, a Taqman probe and application of a bacillus velezensis HMB26553 strain. The specific primers and the probe sequence of the bacillus velezensis HMB26553 strain are respectively SEQ ID NO. 1, SEQ ID NO. 2 and SEQ ID NO. 3. The primers can amplify a single unique target fragment from the bacillus velezensis HMB26553 strain, and realize specific detection of the bacillus velezensis HMB26553 strain. The primers have the characteristics of high specificity, high detection efficiency, low false positive rate, long preservation time and the like. By using the primers and through real-time quantitative PCR technology, the population quantity of the bacillus velezensis HMB26553 strain in the rhizosphere of cotton can be quickly quantified, and the primers have the advantages of high throughput, rapidness and accuracy.

The present application relates to the technical field of Chinese medicine detection and analytical chemistry, and specifically to a fingerprint construction method and identification method of Chinese medicine formula granules of Psoralea corylifolia and Psoralea corylifolia salt. The fingerprint construction method of the present application includes the use of ultra-high performance liquid chromatography for analysis, and the chromatographic conditions are methanol as mobile phase A and a formic acid aqueous solution with a volume concentration of 0.08% to 0.12% as mobile phase B. The fingerprint of the present application is characteristic, reproducible and operable, and can provide a scientific basis for the quality evaluation and control of the above-mentioned Chinese medicine formula granules. The present application also relates to an identification method of Chinese medicine formula granules based on the above-mentioned fingerprint, which can effectively identify Chinese medicine formula granules of Psoralea corylifolia and Psoralea corylifolia salt.

The application provides a detection method for chlorobenzene formaldehyde compounds in a hydrochloride hydrogen sulfate clopidogrel starting material, and relates to the technical field of drug analysis and detection. The detection method comprises the following steps: detecting a test solution by using a high performance liquid chromatography method, and qualitatively and / or quantitatively analyzing chlorobenzene formaldehyde compounds in the test solution; wherein, a chromatographic column for detection is a pentafluorophenyl bonded silica gel chromatographic column; the detection is carried out by using a mobile phase A and a mobile phase B for isocratic elution, the mobile phase A is a phosphoric acid aqueous solution, and the mobile phase B for detection is an organic solvent. The detection method is detected by using the high performance liquid chromatography method, the chromatographic conditions are optimized, the qualitative and quantitative analysis of o-chlorobenzene formaldehyde, m-chlorobenzene formaldehyde and p-chlorobenzene formaldehyde in o-chlorobenzene glycine methyl ester tartrate is realized, the detection specificity is high, the sensitivity is high, the repeatability is good, and the detection result is accurate and reliable.

The invention discloses a continuous dynamic male dog urine flow rate measuring device, which relates to the technical field of veterinary medicine and comprises a protective bag, a urine storage bag, a drawstring, an abutting structure, a communicating structure, a stretching structure, a limiting structure and a measuring structure. The device is connected with the rear leg of the male dog through the drawstring, and the communication and sealing of the urination catheter and the urine storage bag are realized by utilizing the drawing force of the rear leg during the movement of the male dog through a propping structure and a lever principle. Meanwhile, the urine storage bag is protected by the stretching structure and the limiting structure when the male dog runs or moves, so that urine is prevented from leaking out. The measuring structure is arranged between the protective bag and the urine storage bag, and the urine flow rate of the dog is continuously detected for 24 hours through the dynamic urine flow rate detection system. The device solves the problems that in the prior art, urine is prone to seeping out, and practicability is poor, and an accurate and stable detection means is provided for urodynamics research in the veterinary medicine field.