Method for detecting residue of sodium pentachlorophenate and application

A technology of sodium pentachlorophenate and a combined instrument, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of high cost, cumbersome processing operations, high detection limit, etc., and achieve the effect of high cost

Inactive Publication Date: 2017-06-13
杭州海润泰合检测技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods used to detect sodium pentachlorophenate residues are gas phase, gas phase, colorimetric method, etc. In these methods, acetic anhydride-pyridine solution derivatizer and 4-aminoantipyrine are used as reaction reagents, and the pretreatment operation is cumbersome , the detection limit is high, and the cost is high. At present, there is an urgent need for an efficient and accurate method for the detection of sodium pentachlorophenate

Method used

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  • Method for detecting residue of sodium pentachlorophenate and application
  • Method for detecting residue of sodium pentachlorophenate and application
  • Method for detecting residue of sodium pentachlorophenate and application

Examples

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Embodiment

[0026] 1. Preparation of standard solution

[0027] 1.1 Preparation of stock solution

[0028] Accurately weigh 10.00 mg of sodium pentachlorophenate, dissolve it in methanol, and dilute to 10 mL as a stock solution of 1000 μg / mL (the actual concentration should be multiplied by the purity of sodium pentachlorophenate), and store it in a refrigerator at 4 °C;

[0029] 1.2 Preparation of standard intermediate solution

[0030] Accurately measure 1mL of sodium pentachlorophenate stock solution, dissolve it in methanol, dilute to 10mL, use it as a standard intermediate solution of 100μg / mL, and store it in a refrigerator at 4°C;

[0031] 1.3 Preparation of standard working curve

[0032] Use the standard intermediate solution to prepare 1, 2, 5, 10, 20ng / mL standard solution as the standard solution for the working curve.

[0033] 2. Sample Processing

[0034] 2.1 Extraction and purification

[0035] Accurately weigh 5.00g of sample, add 15mL of 6% sulfuric acid aqueous solu...

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Abstract

The invention discloses a method for detecting residue of sodium pentachlorophenate, which belongs to the technical field of drug detection. The method for detecting the residue of the sodium pentachlorophenate comprises the following steps: extracting residue of sodium pentachlorophenate in a sample by utilizing sulfuric acid and normal hexane, and then detecting by utilizing a high performance liquid chromatography-mass spectrometry, wherein the concentration of the sulfuric acid solution is 6 percent. The method has the beneficial effects that the method is suitable for detecting the residue of various matrix sodium pentachlorophenate, the used reagent is low in cost and small in toxicity, impurities can be effectively removed, and the operation steps can be simplified; and by adopting the high performance liquid chromatography-mass spectrometry, compared with the single high performance liquid chromatography, the method has the advantages of high sensitivity, good repetition and low detection limit.

Description

technical field [0001] The invention belongs to the technical field of drug detection, and in particular relates to a detection method and application of sodium pentachlorophenate residue. Background technique [0002] As a herbicide, sodium pentachlorophenate can cause serious injury or death through inhalation, skin contact or ingestion. At present, the methods used to detect sodium pentachlorophenate residues are gas phase, gas phase, colorimetric method, etc. In these methods, acetic anhydride-pyridine solution derivatizer and 4-aminoantipyrine are used as reaction reagents, and the pretreatment operation is cumbersome , high detection limit and high cost, there is an urgent need for an efficient and accurate method for the detection of sodium pentachlorophenate. Contents of the invention [0003] In order to solve the problems in the prior art, the technical scheme that the present invention takes is: [0004] A method for detecting sodium pentachlorophenate residue...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 刘刚韩肖周凯陈雷
Owner 杭州海润泰合检测技术有限公司
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