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Rapid quantitative detection method for drugs in hair

A quantitative detection method and drug technology, applied in measurement devices, biological testing, material inspection products, etc., can solve the problems of non-professionals being unable to use, cumbersome hair pretreatment, difficult to popularize and use at the grassroots level, etc., to simplify the operation steps and technology. requirements, shorten the cracking time, and lower the threshold of technical requirements

Inactive Publication Date: 2019-04-12
SHANGHAI VENTURE BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The pretreatment of hair is quite cumbersome, requiring organic reagent cleaning, strong acid and strong alkali cracking, organic solvent extraction, etc.;
[0006] 2. The operation is complicated and takes a long time, at least 2 hours;
[0007] 3. Instruments and equipment are expensive, with dozens or even millions of testing equipment;
[0008] 4. The operation of the instrument is complicated and cannot be used by non-professionals;
[0009] 5. There are site environment requirements, and it needs to be in a fixed laboratory and cannot be moved
[0010] 6. Difficult to popularize and use at the grassroots level

Method used

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  • Rapid quantitative detection method for drugs in hair
  • Rapid quantitative detection method for drugs in hair
  • Rapid quantitative detection method for drugs in hair

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Experimental program
Comparison scheme
Effect test

Embodiment

[0045] A rapid quantitative detection method for drugs in hair, comprising the following steps:

[0046] (1) Hair extraction:

[0047] Through mechanical milling and biological enzyme extraction, the drugs in the hair are fully released, and the trace drugs contained in the hair are accurately and quickly detected and analyzed;

[0048] (2) The sample is added dropwise to the hair drug fluorescent immunochromatography kit:

[0049] The sample to be tested in step (1) is made into a sample, and the sample is added dropwise to the reagent strip of the hair drug fluorescent immunochromatography kit,

[0050] The hair drug fluorescent immunochromatography kit is provided with a reagent strip, the reagent strip includes a bottom plate, a sample pad, a conjugate release pad, a chromatographic membrane and a water-absorbing pad arranged in sequence along the length of the bottom plate, and the chromatographic membrane A detection line and a quality control line are arranged on the ...

Embodiment 2

[0067] Adopt the method of embodiment 1, detect, in the present embodiment,

[0068] 1. Hair samples: taken from non-drug addicts

[0069] 2. Cut the hair sample 50mg / part and grind it with a grinder for 2min

[0070] 3. Add 500ul / part of lysate

[0071] Lysate components:

[0072]

[0073]

[0074] 4. Mix and let stand for 10 minutes

[0075] 5. Filter, take 300ul of supernatant, add 85ul of EDTA (0.25M), mix well

[0076] 6. Add sample to hair drug fluorescent quantitative detection reagent strip

[0077] After 7.5 minutes, read with a dry immunofluorescence analyzer, and the results are as follows:

[0078]

[0079] The T / C in the table has no specific unit, the test result is a calculated value, and the unit is ng / ml

Embodiment 3

[0081] Adopt the method of embodiment 1, detect, in the present embodiment,

[0082] 1 hair sample: Suspected MET drug addict

[0083] 2 Cut the hair sample 50mg / part and grind it with a grinder for 2min

[0084] 3 Add 500ul / part of lysate

[0085] 4 mix, let stand for 10min

[0086] 5 Filter, take 300ul of supernatant, add 85ul of EDTA (0.25M), mix well

[0087] 6 Add samples to hair drug fluorescence quantitative detection reagent strip

[0088] After 75 minutes, read with a dry-type immunofluorescence analyzer, and the results are as follows:

[0089]

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Abstract

The invention relates to a rapid quantitative detection method for drugs in hair. The rapid quantitative detection method comprises the following steps that (1) hair extraction is conducted, specifically, the drugs in the hair are fully released through mechanical grinding and bioenzyme extraction; (2) a sample is prepared from a to-be-detected object treated in the step (1), and the sample is dropwise added onto a reagent strip of a hair drug fluorescence immunochromatographic kit; and (3) the hair drug fluorescence immunochromatographic kit is detected through a dry immunofluorescence analyzer, and the content of an analyzed object in the to-be-detected sample is calculated. According to the rapid quantitative detection method, the advantages that sampling for hair detecting is easy, preservation is easy, the detecting time limit is long (from several weeks to several months), and information is comprehensive are reserved; the defects that conventional hair detection is complex in pretreatment, cumbersome operation, long in result analysis time and the like are overcome; the detecting time of the drugs in the hair is shortened from several hours and several days to fifteen to twenty minutes, the operation steps and technical requirements are greatly simplified, and thus non-professional technical personnel can also operate and use the rapid quantitative detection method.

Description

technical field [0001] The invention relates to a hair detection method, in particular to a rapid quantitative detection method for drugs in hair. Background technique [0002] The poison analysis of hair can be traced back to ancient my country at the earliest, and people already had the knowledge of using hair to judge poisoning at that time. Modern hair toxicology analysis started in Europe. In 1858, the British Hoppe published the first case in which the results of hair analysis were used for judgment in the "Forensic Practice Guide". In 1979, Baumgartner (Baumgartnr) used radioimmunoassay to measure the content of opium in hair, which revolutionized hair analysis. In the mid-1980s, mass spectrometry and chromatographic analysis methods were introduced into hair analysis, thus beginning a new era of hair analysis. Then hair analysis entered an era of comprehensive development, and various related researches were carried out. [0003] The main inspection materials for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/53G01N33/533G01N33/543
CPCG01N33/53G01N33/533G01N33/54306
Inventor 胡小龙周丽朱凯
Owner SHANGHAI VENTURE BIOTECH CO LTD
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