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Method for synchronously detecting water sample contaminated by mixing of trace amount of pesticide environmental hormones

A technology for simultaneous detection of environmental hormones, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of time-consuming and labor-intensive measurement, lack of environmental hormone investigation and research, difficult environmental hormone measurement, etc., to achieve a wide coverage and save measurement. Cost and effect of reducing measurement time

Inactive Publication Date: 2015-04-29
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, the investigation and research on pesticide environmental hormones such as pyrethroids, amides, anilines, amino acid methyl esters, and nitrogen-containing heterocycles, which have been used in large quantities, are relatively lacking, and it is difficult to investigate all environmental hormones in water bodies. Hormones are measured
The reason is that the environmental hormones of pesticides in water sources are at trace or even trace levels and there are many kinds of environmental hormones. In the existing research, a single method of single environmental hormones is usually used, and the determination is time-consuming and labor-intensive.

Method used

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  • Method for synchronously detecting water sample contaminated by mixing of trace amount of pesticide environmental hormones
  • Method for synchronously detecting water sample contaminated by mixing of trace amount of pesticide environmental hormones
  • Method for synchronously detecting water sample contaminated by mixing of trace amount of pesticide environmental hormones

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Experimental program
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Effect test

Embodiment 1

[0040] The standard solution is prepared with national standard materials, the organic solvent is acetone, and 21 kinds of pesticide environmental hormone standard solution stock solutions (concentration 100mg / L) are selected, including 4 kinds of organic chlorine (2,4-D, pentachlorophenol, dicofol, Hexachlorobenzene), 4 kinds of organophosphorus (methyl parathion, parathion, malathion, chlorpyrifos), 6 kinds of pyrethroids (bifenthrin, permethrin, cypermethrin, Lambda-cyhalothrin, cypermethrin, deltamethrin), 2 types of amides (alachlor, acetochlor), 2 types of anilines (trifluralin, pendimethalin), 2 amino acid methyl esters 2 species (carbofuran, carbofuran) and 2 nitrogen-containing heterocycles (atrazine). Take 0.4ml of standard stock solutions of 21 kinds of pesticide-like environmental hormones in 10mL volumetric flasks, and dilute to 10ml with acetone to prepare mixed standard solutions. The concentration of each pesticide-like environmental hormones is 4.0mg / L.

[00...

Embodiment 2

[0046] The standard solution is prepared with national standard materials, the organic solvent is acetone, and 21 kinds of pesticide environmental hormone standard solution stock solutions (concentration 100mg / L) are selected, including 4 kinds of organic chlorine (2,4-D, pentachlorophenol, dicofol, Hexachlorobenzene), 4 kinds of organophosphorus (methyl parathion, parathion, malathion, chlorpyrifos), 6 kinds of pyrethroids (bifenthrin, permethrin, cypermethrin, Lambda-cyhalothrin, cypermethrin, deltamethrin), 2 types of amides (alachlor, acetochlor), 2 types of anilines (trifluralin, pendimethalin), 2 amino acid methyl esters 2 species (carbofuran, carbofuran) and 2 nitrogen-containing heterocycles (atrazine). Take 0.4ml of standard stock solutions of 21 kinds of pesticide-like environmental hormones in 10mL volumetric flasks, and dilute to 10ml with acetone to prepare mixed standard solutions. The concentration of each pesticide-like environmental hormones is 4.0mg / L.

[00...

Embodiment 3

[0051] The standard solution is prepared with national standard materials, the organic solvent is acetone, and 21 kinds of pesticide environmental hormone standard solution stock solutions (concentration 100mg / L) are selected, including 4 kinds of organic chlorine (2,4-D, pentachlorophenol, dicofol, Hexachlorobenzene), 4 kinds of organophosphorus (methyl parathion, parathion, malathion, chlorpyrifos), 6 kinds of pyrethroids (bifenthrin, permethrin, cypermethrin, Lambda-cyhalothrin, cypermethrin, deltamethrin), 2 types of amides (alachlor, acetochlor), 2 types of anilines (trifluralin, pendimethalin), 2 amino acid methyl esters 2 species (carbofuran, carbofuran) and 2 nitrogen-containing heterocycles (atrazine). Take 0.4ml of standard stock solutions of 21 kinds of pesticide-like environmental hormones in 10mL volumetric flasks, and dilute to 10ml with acetone to prepare mixed standard solutions. The concentration of each pesticide-like environmental hormones is 4.0mg / L.

[00...

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Abstract

The invention discloses a method for synchronously detecting a water sample contaminated by mixing of trace amount of pesticide environmental hormones. The method comprises the following steps: (1) determination of water quality characteristics of the water sample contaminated by mixing of trace amount of pesticide environmental hormones, and preparation of a standard solution; (2) pretreatment on the water sample contaminated by mixing of the pesticide environmental hormones, specifically, filtration, SPE column activation, environmental hormone extraction, elution and concentration; and (3) determination of the sample and quality control on the determination result. According to the method for synchronously detecting the water sample contaminated by mixing of trace amount of pesticide environmental hormones disclosed by the invention, the determined object coverage area is wide, and related variety is diverse; trace amount of pesticide environmental hormones in a water body can be simultaneously determined, so that the determination cost is reduced, and the determination time is shortened; and accurate and credible determination result are ensured by mass control on the determination result.

Description

technical field [0001] The invention relates to a method for synchronously detecting hormones in different environments. Background technique [0002] With the rapid development of my country's social economy, the discharge of water pollutants has increased year by year. In recent years, it has been repeatedly reported that my country's water sources are polluted by trace organic substances, including new trace organic substances such as environmental hormones and drugs. Among them, environmental hormones are extremely concerned because most of them can produce endocrine disrupting effects on organisms at trace levels. The U.S. Environmental Protection Agency has screened out 67 environmental hormones that endanger the human body and organisms from 86,000 commercial products and chemicals, of which pesticide environmental hormones account for two-thirds. There are many types of pesticide environmental hormones, including organochlorines, organophosphorus, pyrethroids, amide...

Claims

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Application Information

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IPC IPC(8): G01N30/88
Inventor 冯丽娟阳广凤刘俊稚高锋穆军
Owner ZHEJIANG OCEAN UNIV
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