A kind of detection method of Abamectin residue in soil

A technique for detecting abamectin and a detection method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of insensitivity, high detection limit, accurate detection of abamectin residues, etc., and achieve good reproducibility, The method has high accuracy and good linearity of the standard curve

Active Publication Date: 2020-10-02
NINGXIA HOPE FIELD BIOLOGICAL AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the detection limit of the prior art is relatively high and insensitive; there is no effective solution to the influence of the matrix effect, and the prior art cannot quickly / accurately detect the residual amount of abamectin in the soil, and Provided is a kind of detection method of Abamectin residue in soil

Method used

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  • A kind of detection method of Abamectin residue in soil
  • A kind of detection method of Abamectin residue in soil
  • A kind of detection method of Abamectin residue in soil

Examples

Experimental program
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specific Embodiment approach 1

[0048] Specific embodiment one: the detection method of Abamectin residue in a kind of soil of the present embodiment, it is carried out according to the following steps:

[0049] 1. Sample preparation for the test product:

[0050] 1) Weigh the soil containing abamectin, add emamectin benzyl salt, acetonitrile and deionized water, vortex homogenize for 45-60s, ultrasonically assist extraction for 18-20min, and then place in a centrifuge Centrifuge at 3500-4000r / min for 8-10min, collect the supernatant, and save the collected precipitate for later use;

[0051]2) Add emamectin benzyl salt, acetonitrile and deionized water to the precipitate collected in the previous step, vortex and homogenize for 45-60 seconds, and extract with ultrasonic assistance for 18-20 minutes, then place it in a centrifuge to Centrifuge at 3500-4000r / min for 8-10min, collect the supernatant;

[0052] 3) After combining the supernatant collected in step 1) and step 2), constant volume is obtained to ...

specific Embodiment approach 2

[0074] Embodiment 2: This embodiment differs from Embodiment 1 in that the activation solution is formed by mixing acetonitrile and water in a ratio of 2:3 by volume. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0075] Embodiment 3: This embodiment is different from Embodiment 1 in that: the eluent is mixed with methanol and acetonitrile at a ratio of 1:1 by volume. Others are the same as in the first embodiment.

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Abstract

The invention discloses a detection method for residual amount of abamectin in soil. The method comprises the following steps: preparing a reference substance solution; preparing a test solution; theninjecting the reference substance solution and the test solution into an instrument by way of gradient elution by means of ultra-high performance liquid chromatographic tandem mass spectrometry; andcalculating the residue of abamectin by means of an internal standard method. By optimizing chromatographic and mass spectrum conditions and testing the preparation method of the test and the reference substance, an ultra-high performance liquid chromatographic tandem mass spectrometric detection and analysis method for abamectin in soil is established. By optimizing the chromatographic and mass spectrum conditions, the detection method for abamectin in soil is established; a methodological verification experimental investigation shows that the established method is high in accuracy, high in specificity and good in repeatability, and can detect the residual amount of abamectin in soil.

Description

technical field [0001] The invention relates to the technical field of soil detection and inspection, in particular to a method for detecting abamectin residues in soil. Background technique [0002] In my country, the scale of agriculture and animal husbandry is getting bigger and bigger. In order to promote plant growth and prevent and treat diseases, the use of agricultural antibiotics has also increased, and the resulting problem of antibiotic abuse has become more and more serious. The final environmental destination of agricultural antibiotics is the soil. Most pesticides do not exert their due efficacy after entering the environment, but directly enter the soil and water bodies. For the soil environment, their residues have an impact on soil animals, microorganisms and soil enzyme activities, destroying The ecological environment may also enter the human body through the action of the food chain. The harm caused by agricultural antibiotics as a new environmental poll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 王义张鹏金昌福李宁飞
Owner NINGXIA HOPE FIELD BIOLOGICAL AGRI TECH CO LTD
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