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Detection method for simultaneously determining avermectin and chlorpyrifos

A technology of abamectin and detection method, applied in the field of detection, can solve problems such as low reproducibility, inability to separate abamectin and chlorpyrifos, and achieve the effect of reducing detection steps

Inactive Publication Date: 2018-12-04
朱友兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the current technical means analyze the content of active ingredients of abamectin and chlorpyrifos, the reproducibility is low, and it is impossible to separate trace amounts of abamectin and chlorpyrifos

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Weigh abamectin and chlorpyrifos standard products in a volumetric flask, add 20ml of methanol to dissolve, shake in an ultrasonic bath to return to room temperature, constant volume, shake well for 3min; use Agilent TC-C18 as a filler of 250mm× 4.6mm, built-in TC-C18 packing stainless steel column and ultraviolet variable wavelength detector, add mobile phase acetonitrile and water volume ratio of 90:10, separate abamectin and chlorpyrifos in the sample, flow rate: 1.0mL / min, the column temperature is 26°C, the detection wavelength is 230nm, and the injection volume is 5μL.

Embodiment 2

[0014] Example 2: Weigh abamectin and chlorpyrifos standard products in a volumetric flask, add 30ml of methanol to dissolve, shake in an ultrasonic bath to return to room temperature, constant volume, shake well for 6min; use Agilent TC-C18 as a filler of 250mm× 4.6mm, built-in TC-C18 packing stainless steel column and ultraviolet variable wavelength detector, add mobile phase acetonitrile and water volume ratio of 90:10, separate abamectin and chlorpyrifos in the sample, flow rate: 1.0mL / min, the column temperature is 26°C, the detection wavelength is 230nm, and the injection volume is 5μL.

Embodiment 3

[0015] Embodiment 3: Weigh abamectin and chlorpyrifos standard products in a volumetric flask, add 25ml of methanol to dissolve, shake in an ultrasonic bath to return to room temperature, constant volume, shake well for 5min; use Agilent TC-C18 as a filler of 250mm× 4.6mm, built-in TC-C18 packing stainless steel column and ultraviolet variable wavelength detector, add mobile phase acetonitrile and water volume ratio of 90:10, separate abamectin and chlorpyrifos in the sample, flow rate: 1.0mL / min, the column temperature is 26°C, the detection wavelength is 230nm, and the injection volume is 5μL.

[0016] The invention can measure the abamectin and chlorpyrifos with the content of 10-100ppm.

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PUM

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Abstract

The invention discloses a detection method for avermectin and chlorpyrifos. The method includes the following steps: (1) weighing avermectin and chlorpyrifos standard substances in a volumetric flask,adding methanol to perform dissolving, performing vibration in an ultrasonic bath and recovering to room temperature, and performing constant volume and well shaking; and (2) adding a mobile phase into a stainless-steel column taking Agilent TC-C18 as a filling material and an ultraviolet variable wavelength detector so that separating and determining can be performed on the avermectin and chlorpyrifos in samples. The method can well determine the content of the avermectin and chlorpyrifos, so that the microscale avermectin and chlorpyrifos contained in soil can be determined.

Description

technical field [0001] The invention relates to a detection method, in particular to a detection method for simultaneously measuring abamectin and chlorpyrifos. Background technique [0002] Abamectin is a highly efficient and broad-spectrum antibiotic insecticide and acaricide. It is composed of a group of macrolide compounds, which have stomach poisoning and contact killing effects on mites and insects. Spraying on the surface of leaves can quickly decompose and dissipate. The active ingredients that penetrate into the plant parenchyma can exist in the tissue for a long time and have a conductive effect. It has long-term residual effect on harmful mites and insects that feed on harmful plants. It is mainly used for poultry, livestock internal and external parasites and crop pests, such as parasitic red worms, Diptera, Coleoptera, Lepidoptera and harmful mites. [0003] Chlorpyrifos is a moderate insecticide, highly toxic to aquatic organisms, and may have long-term adver...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/74G01N30/06
CPCG01N30/02G01N30/06G01N30/74G01N2030/065
Inventor 朱友兵
Owner 朱友兵