35results about How to "Good digestion effect" patented technology

The invention discloses a method for detecting chromium, nickel, arsenic, selenium, cadmium and lead elements in cigarette ashes. The method is characterized in that cigarette ashes are collected by using a cigarette ash plate, a cigarette ash sample is dispelled by adopting a microwave digestion method, and the contents of chromium, nickel, arsenic, selenium, cadmium and lead elements in the cigarette ashes are detected by inductively coupled plasma mass spectrometry. The cigarette ashes are collected by adopting the cigarette ash plate, independent collection of each cigarette ash is achieved on a conventional smoking machine, and loss of cigarette ashes and cross contamination of different cigarette ashes in the smoking process are effectively avoided. The sample is processed by adopting the microwave digestion method, so that the risk caused by use of a perchloric acid in the traditional electric hot plate digestion mode is avoided, the dosage of the acid is reduced, the digestion ability is improved, the method is good in digestion effect, less in element loss, and simple and easy to operate, and the used mixed acid system is applicable to treatment of the cigarette ash sample, and thorough to digest. The interference is effectively corrected by adopting inductively coupled plasma mass spectrum parameters, and the method is high in sensitivity, good in repeatability, high in recovery rate, and accurate in result.

The invention relates to a method for detecting the contents of chromium, nickel, arsenic, selenium, cadmium and lead in a cigarette butt, which is characterized in that a cigarette butt collecting method is specified; a cigarette butt sample is decomposed by using micro-wave; and the contents of chromium, nickel, arsenic, selenium, cadmium and lead in the cigarette butt are detected through the inductively coupled plasma mass spectrometry. According to the invention, the disadvantages of the cigarette butt collecting method in the existing detection technology are overcome; the cigarette butt collecting method is perfect; the cigarette butt sample is decomposed by using micro-wave, therefore, the use amount of acid and the decomposition time are effectively reduced; the method disclosed by the invention is good in decomposing effect, little in element loss and simple to operate; in a mixed acid decomposing system, the cigarette butt sample is thoroughly decomposed; decomposing solution is clear and transparent and free from precipitation; parameters of the inductively coupled plasma mass spectrometry are adopted; the matrix effect is effectively reduced; and the method disclosed by the invention is high in sensitivity, good in repeatability, high in recovery rate and accurate in result.

The invention discloses a process for preparing high calcium fly ash cement by high calcium fly ashes. A combustion chamber is arranged at the head part of the existing ball mill for pre-mixing measured high calcium fly ashes and a digesting agent and then feeding measured cement clinker, gypsum, blast furnace slag, etc. into a ball mill for ball grinding; and the material temperature in the mill is rising under the mechanical action of the mill, additionally, the grinding head combustion chamber provides heat, so the water in the digestion solution is evaporated and the digestion solution and free calcium oxide in the high calcium fly ashes have the mechanical and chemical action, the free calcium oxide digestion is realized during the cement grinding process, and finally the high calcium fly ash cement is prepared. The process is simple and needs not to add the special high calcium ash treating process before producing the cement, the free calcium oxide digestion effect is obvious, the mixing amount of the high calcium ashes in the cement can be greatly increased and the cement manufacturing cost is reduced. The process overcomes the defect that the humidity-control and digestion of fly ash free calcium oxide need two to seven days, and can implement the continuous production, and the ball-milling efficiency of the cement mill is improved by over 10 percent in the meantime.

The invention discloses a digesting agent for digesting free calcium oxide and a method for digesting free calcium oxide in high calcium fly-ash, the digesting agent is spray digesting liquid composed of a digesting agent which can dissolve in water directly and water, or digesting liquid integrally composed of spray liquid and a water-insoluble solid digesting agent, wherein the digesting agent which can dissolve in water comprises triethanolamine, sodium sulfate, sodium sulfate, calcium sulfate and natrium hydroxydatum, the steps of the process are that during the process of ball milling for high calcium fly-ash, spraying the digesting liquid on a grinding mill, utilizing chemicals of the digesting agent in the digesting liquid and the mechanical action in the process of ball milling, and employing the evaporating action principle of the digesting liquid after the temperature of materials is increased in the process of ball milling, thereby achieving the digesting of the free calcium oxide in high calcium fly-ash. The digesting method is simple in process, fully utilizes the characteristic that temperature of materials is increased during the process of ball milling of fly ash, and employs mechanical action and chemical principle to achieve digesting of the free calcium oxide in high calcium fly ash, thereby avoiding impaction to the stability of cement and concrete.

The invention discloses a method for compounding active ingredients in rhizoma acori graminei by utilizing oligopeptide supramolecular hydrogel. The method comprises the following steps: obtaining a compound supramolecular hydrogel factor by utilizing an activated commercial amino acid; and diluting an ethanol solution of the compound supramolecular hydrogel factor to 0.5%(w/v) with PBS with the pH value of 7.4, and ultrasonically heating and cooling in a short time, thereby obtaining the compound supramolecular hydrogel. The compound supramolecular hydrogel prepared by the method disclosed by the invention is simple and cheap, has multiple response properties, is hydrogel at a high concentration and is a nanosphere at a low concentration. The change between the hydrogel and the nanosphere can be used for controlling slow release of active ingredients in rhizoma acori graminei, so that long-term inhibition of Alzheimer's disease is realized.

The invention provides a method for processing antibiotic residue by the utilization of pectase. pectase is used for processing antibiotic residue. The antibiotic residue is erythromycin sulfur residue. Erythromycin sulfur residue is processed by the use of pectase for 4-6 h under the following conditions: the temperature is 30-55 DEG C, pH is 7.0-9.5, and enzyme concentration is 0.5-0.65 g/mL. Titer of the erythromycin sulfur residue is reduced by 90% and above. The method of the invention is simple and feasible, processing cost is low, and secondary pollution is not generated. The method is energy-saving and environment-friendly. By the method, most residual antibiotics in the antibiotic residue can be removed. The method is convenient for subsequent processing of antibiotic residue and provides a certain data basis for the technology of processing antibiotic residue by the use of enzyme.

The invention relates to a technical field of breeding, and particularly relates to a colibacillosis-prevented pig raising method. The method includes a piglet midwifery stage, an anthony pig stage, a nursing pig stage, a growing pig stage and a pig growing and fattening stage. In the anthony pig stage, every anthony pig shall eat breast milk at a fixed nipple on the sow; after 4-5 days, the anthony pig shall eat the compound feed for anthony pig; the compound feed for anthony pig every day is 50-100 g, wherein the compound feed for anthony pig is mainly prepared from corn powder, peanut straws, fish meal, rice bran, bone powder, incised notopterygium, bamboo leaf powder, radix bupleuri, resina liquidamberis, folium eriobotryae, snow pear, orange peel, garlic, coptis chinensis, golden cypress and rheum officinale. According to the common disease of a pig, vaccination and diet rehabilitation are carried out on the pig; the hog house can keep clean; it is an effective method for solving the problem that pig is easy to get ill, therefore, the method is worthy of popularization.

The invention discloses an online detecting method of the content of heavy metal in water. The online detecting method comprises the following steps: sucking an original water sample of a river channel into a storage cabin by a sampling device, and switching off a water inlet valve and switching on a water outlet valve when a liquid level sensor in the storage cabin induces that the water sample reaches a set amount; outputting the original water sample from the storage cabin, forming a dosing water sample after mixing the original water with a reagent, feeding the dosing water sample into a digestion device, digesting in the digestion device, and cooling; opening a detection light source of a detector, irradiating the dosing water sample by the detection light source through the digestiondevice, reading an optical signal from the detector, and computing the content of the heavy metal; sending data to a computer side by the detector through a wireless signal, and saving the data, thusrealizing real-time online monitoring on the content of the heavy metal in the water. According to the online detecting method disclosed by the invention, 24-hour real-time automatic online detectionon the heavy metal in the water can be realized, and the detection accuracy is high; a detection process is simple and easy to realize, an operator is not required to be on the scene all the time, and labor strength is reduced.

The invention provides a radioactive organic matter pretreatment method. The method comprises the steps of sampling, acid adding, preheating, microwave digesting, acid catching, and volume metering; transferring a certain amount of uranium-containing organic matter to a microwave digestion tank, heating for a certain time in an electric heating plate, placing in a microwave digester, setting a microwave digestion program, and placing in an acid catcher to heat after the microwave digestion is ended, evaporating to the required volume. The method can be used for the pretreatment of the radioactive organic matter, the aqueous phase can be directly obtained through organic phase microwave digestion, the solution obtained after microwave digestion is clear and can directly enter an inductivelycoupled plasma spectrometer or mass spectrometer to determine. The technical scheme provided by the invention is simple in operation, time-saving, and good in treatment effect.

The invention discloses a pretreatment method for determining heavy metal elements in grease food. The method comprises the following steps: sampling, preparing a mixed emulsion of an initial lauryl sodium sulfate solution and a sample as a control group 1, performing a stability experiment on the control group 1, and testing the control group 1; recording stability experiment data 1, reducing the concentration of the initial lauryl sodium sulfate solution, preparing a mixed emulsion with a sample as a control group 2, testing the control group 2, recording stability experiment data 2, repeating N times to obtain N groups of stability experiment data, and screening and comparing the N groups of stability experiment data to obtainan optimal lauryl sodium sulfate solution concentration; and according to the optimal lauryl sodium sulfate solution concentration, adding nitric acid and hydrogen peroxide to carry out emulsification digestion pretreatment on the sample. The method has the beneficial effects that the digestion effect is good, a sample to be detected can be completely digested, and filtering or degreasing is not needed; and the target element can be completely fused out so that the subsequent measurement result is relatively high in precision and is close to a true value.

The invention provides a method for treating antibiotic bacterial residue by using laccase. According to the method adopting laccase for treating the antibiotic bacterial residue, the antibiotic bacterial residue is erythromycin thiocyanate bacterial residue; and the treating conditions are as follows: the temperature is 40 to 55 DEG C, the pH is 6 to 7, the enzyme concentration is 0.005 to 0.02 g/mL, the treating time is 4 to 6 h, and the titer of the erythromycin thiocyanate bacterial residue is reduced by 90% or higher. The method provided by the invention is simple, convenient and feasible; the treatment cost is low; no secondary pollution is generated; energy is saved; the environment is protected; most of residual antibiotics in the antibiotic bacterial residue can be removed, so that the subsequent treatment of the antibiotic bacterial residue is facilitated; and a certain data basis is provided for enzyme treatment technology of the antibiotic bacterial residue.

The invention relates to the field of liquid phase chemistry, in particular to a method for determining mercury and arsenic in briquette coal based on hydrothermal synthesis reaction kettle digestion briquette coal-atomic fluorescence spectrometry, which comprises the following steps: adding a certain amount of briquette coal and a proper amount of mixed acid into a polytetrafluoroethylene sealing tank which is subjected to soaking, cleaning and preheating pretreatment, and pre-digesting until gas is released and the reaction tends to be mild; covering, putting into a stainless steel sleeve, sealing, putting into an electrothermal blowing dry box, carrying out closed heating digestion, and then carrying out acid removal and constant volume operation, so as to obtain a solution to be detected; and additionally preparing standard series solutions of mercury and arsenic elements, drawing a standard curve, testing the obtained digestion solution to be detected by using an atomic fluorescence spectrometer to obtain fluorescence intensity, and converting through the standard curve to obtain the content of corresponding elements in the briquette coal. The method can accurately measure the content of volatile trace elements represented by mercury and arsenic in the briquette coal.

The invention relates to the field of treatment of phthalate substances, in particular to a method for reducing dibutyl phthalate. According to the method, a plate-plate electrode low-temperature plasma excitation source based on a dielectric barrier discharge technology is used for generating low-temperature plasma to reduce dibutyl phthalate. According to the method, the reduction rate of dibutyl phthalate can reach about 60% or above, the digestion effect is good, and the toxicity to cells is smaller.