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Method for detecting diazepam and chemoluminescence immunoassay kit special for same

A technology of chemiluminescence immunity and diazepam, which can be applied in microorganism-based methods, biological tests, immunoglobulins, etc., can solve problems such as affecting physical health, drug residues, life-threatening safety, etc., and achieves good preservation and stability. , Easy operation, high sensitivity effect

Active Publication Date: 2011-01-05
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The abuse of diazepam in feed will eventually lead to drug residues in animal products, which will seriously affect people's health and threaten people's lives

Method used

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  • Method for detecting diazepam and chemoluminescence immunoassay kit special for same
  • Method for detecting diazepam and chemoluminescence immunoassay kit special for same
  • Method for detecting diazepam and chemoluminescence immunoassay kit special for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, preparation and detection method of chemiluminescent immunoassay kit

[0037] 1. The composition of the chemiluminescence immunoassay kit:

[0038] (1) Original coating solution: obtained by dissolving the original coating in the coating buffer, wherein the concentration of the original coating is 0.08 μg / mL; the original coating is the coupling of diazepam hapten and ovalbumin thing.

[0039] (2) Horseradish peroxidase-labeled goat anti-mouse anti-antibody working solution: obtained by diluting horseradish peroxidase-labeled goat anti-mouse anti-antibody with diluent, the dilution ratio is 1:1000; the diluent consists of 50mL It is obtained by mixing bovine serum albumin and 950 mL of phosphate buffer; the concentration of the phosphate buffer is 0.02M, and the pH value is 7.4. Horseradish peroxidase-labeled goat anti-mouse anti-antibody was purchased from Jackson ImmunoResearch Laboratories Inc. catalog number 115-035-003.

[0040] (3) Diazepam standa...

Embodiment 2

[0086] Embodiment 2, test kit sensitivity, accuracy and shelf life test

[0087] 1. Kit sensitivity experiment

[0088] The zero standard solution (that is, the diluent is pH7.4, 0.05M phosphate buffer) was tested 20 times, and the average value of the measurement results plus 3 times the standard deviation was used as the minimum detection limit of the kit.

[0089] Table 1 Statistical table of zero standard measurement results μg / L

[0090]

[0091] It can be seen from Table 1 that the minimum detection limit of the kit is 0.1 μg / L.

[0092] 2. Standard product precision test:

[0093] From the described three batches of kits (01 batches, 02 batches, 03 batches) obtained by Example 1, 10 kits are extracted from each batch, and the measurement concentration is the luminescence intensity of the diazepam standard solution of 1 μg / L value, and calculate the coefficient of variation. The detection method is consistent with that described in Experiment 3 in Example 1.

[009...

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PUM

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Abstract

The invention discloses a method for detecting diazepam and a chemoluminescence immunoassay kit special for the same. The chemoluminescence immunoassay kit special for detecting the diazepam provided by the invention comprises a diazepam specific antibody, a coating antigen and standard substance solution, wherein the coating antigen is a conjugate of a diazepam semi-antigen and a carrier protein. The detection method of the invention has the characteristics of simple sample pretreatment process, simple and convenient operation, low cost, high specificity, high sensitivity, high accuracy and the like, can be monitored on site and is suitable for screening a large number of samples.

Description

technical field [0001] The invention relates to a method for detecting diazepam and a special chemiluminescence immunoassay kit thereof. Background technique [0002] At present, the safety of animal food has become the focus of attention all over the world, and the problem of veterinary drug residues is one of the most important factors affecting the safety of animal food. Due to the complex composition of animal samples, the concentration of analytes is low, and most of the samples are very small , which puts forward higher requirements on the selectivity and sensitivity of the analytical method. Chemiluminescence immunoassay (Chemiluminescence analysis, CLIA) technology combines highly sensitive chemiluminescence technology with highly specific immune reaction, which has high sensitivity, strong specificity, wide linear range, easy operation, and does not require very expensive equipment Features. CLIA does not require external light sources, has a higher signal-to-nois...

Claims

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Application Information

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IPC IPC(8): G01N33/53G01N33/577G01N33/531C07K16/44C12N5/20C12R1/91
Inventor 史为民沈建忠张素霞王战辉吴聪明程林丽曹兴元汤树生
Owner CHINA AGRI UNIV
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