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Detection method for arsanilic acid, nitrobenzene arsenic acid and roxarsone in egg

A technology for arsanic acid and arsenic acid in nitric acid, applied in the detection of arsenic acid in nitric acid and roxarsone, and in the field of arsanic acid in eggs, which can solve the problem of incomplete detection, affecting the accuracy of detection, and insufficient detection comparison, etc. problem, to achieve the effect of increasing the detection quality and improving the contrast

Inactive Publication Date: 2019-11-05
常向彩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the above-mentioned technical solution is actually used, there are still many shortcomings, such as the incomplete detection of the invention during detection, because there are many factors affecting the detection accuracy, and the detection contrast is insufficient, thereby affecting the detection accuracy.

Method used

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  • Detection method for arsanilic acid, nitrobenzene arsenic acid and roxarsone in egg
  • Detection method for arsanilic acid, nitrobenzene arsenic acid and roxarsone in egg

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The invention provides a method for detecting arsanic acid, nitrophenyl arsenic acid and roxarsone in eggs, which specifically includes the following steps:

[0024] Step 1. Put the egg white, egg yolk and egg white-yolk mixture into the test tube respectively, then use a homogenizer to mix the test tube, then weigh 2g of the homogenized mixed sample, and then pour 18ml of methanol into it aqueous solution, and then put it into a microwave-assisted extraction apparatus for extraction, and the extraction time is 20 minutes;

[0025] Step 2. Control the temperature of the extract in step 1 at 20°C through natural heat dissipation, and let it stand for 10 minutes at the same time, then extract the supernatant inside the test tube, then filter the supernatant, and then weigh 8ml to filter After the supernatant;

[0026] Step 3: Pour the arsanic acid standard into the distilled water for dilution, and then prepare 50ml of the standard stock solution with a concentration of ...

Embodiment 2

[0030] The invention provides a method for detecting arsanic acid, nitrophenyl arsenic acid and roxarsone in eggs, which specifically includes the following steps:

[0031] Step 1. Put the egg white, egg yolk and egg white-yolk mixture into the test tube respectively, then use a homogenizer to mix the test tube, then weigh 2g of the homogenized mixed sample, and then pour 20ml of methanol into it aqueous solution, and then put it into a microwave-assisted extraction apparatus for extraction, and the extraction time is 25 minutes;

[0032]Step 2. Control the temperature of the extract in step 1 at 22°C through natural heat dissipation, and let it stand for 11 minutes at the same time, then extract the supernatant inside the test tube, then filter the supernatant, and then weigh 9ml to filter After the supernatant;

[0033] Step 3: Pour the arsanic acid standard into the distilled water for dilution, and then prepare 50ml of the standard stock solution with a concentration of 0...

Embodiment 3

[0037] The invention provides a method for detecting arsanic acid, nitrophenyl arsenic acid and roxarsone in eggs, which specifically includes the following steps:

[0038] Step 1. Put the egg white, egg yolk and egg white-yolk mixture into the test tube respectively, then use a homogenizer to mix the test tube, then weigh 2g of the homogenized mixed sample, and then pour 22ml of methanol into it aqueous solution, and then put it into the microwave-assisted extraction apparatus for extraction, and the extraction time is 30 minutes;

[0039] Step 2. Control the temperature of the extract in step 1 at 24°C through natural heat dissipation, and let it stand for 12 minutes at the same time, then extract the supernatant inside the test tube, then filter the supernatant, and then weigh 10ml to filter After the supernatant;

[0040] Step 3: Pour the arsanic acid standard into the distilled water for dilution, and then prepare 50ml of the standard stock solution with a concentration ...

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Abstract

The invention discloses a detection method for arsanilic acid, nitrobenzene arsenic acid and roxarsone in an egg, and particularly relates to the field of residual detection. The detection method particularly comprises the following steps that step one, egg white and yolk of an egg and a mixed egg white and yolk solution are respectively placed in test tubes, then mixing operation is conducted onthe test tubes by adopting a homogenizer, and 2 g of a homogenized mixed sample is weighed and poured into 18-22 ml of an aqueous methyl alcohol solution; the mixture is placed in a microwave-assistedextraction device for extraction for 20-30 minutes. According to the detection method, by extracting the egg white and egg yolk of the egg and putting the egg white and egg yolk of the egg and the mixed egg white and egg yolk solution into the test tubes, detection for the arsanilic acid, nitrobenzene arsenic acid and roxarsone in the egg white and egg yolk in the egg and the mixed egg white andegg yolk solution is effectively improved, a dual-detection mode is adopted for a contrast, the precision of detection for the arsanilic acid, the nitrobenzene arsenic acid and the roxarsone is effectively improved, the detection quality is improved, and the contrast ratio is increased.

Description

technical field [0001] The invention relates to the technical field of residue detection, and more specifically, the invention relates to a method for detecting arsanic acid, nitric acid, arsenic acid and roxarsone in eggs. Background technique [0002] Organic arsine preparations are widely used in pig and chicken farming. The main types are roxarsone, arsanic acid, and nifexarsine. Due to their advantages of increasing daily weight gain, improving feed conversion rate, and improving skin nutrition, their application It is becoming more and more widespread, and the amount of addition is gradually increasing. The residue of arsenic in animals is not only toxic to animals, but also harmful to human health. [0003] The invention patent of patent application publication number CN109557232A discloses a liquid chromatography tandem mass spectrometry method for the determination of arsanic acid, nitrophenyl arsenic acid and roxarsine in eggs, which belongs to the field of residue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/72G01N30/74
CPCG01N30/02G01N30/06G01N30/72G01N30/74G01N2030/027G01N2030/062
Inventor 常向彩
Owner 常向彩
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