Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for simultaneous detection of regulatory phosphine, ethephon, glufosinate and glyphosate in water

A technology for regulating phosphine and ethephon, which is applied in the field of glufosinate and glyphosate, and simultaneously detects the field of regulating phosphine and ethephon in water, which can solve the problems of long time-consuming, difficult to control the operation process, cumbersome derivatization process, etc., and achieve detection The effect of low limit and accurate results

Active Publication Date: 2022-04-01
兰州市食品药品检验所
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are only liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry of glyphosate in my country's national standards, both of which need to derivatize glyphosate, and the gas chromatography of ethephon also needs to be derivatized. However, the derivatization process It is cumbersome, time-consuming, and the operation process is not easy to control, and the inspection is inconvenient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for simultaneous detection of regulatory phosphine, ethephon, glufosinate and glyphosate in water
  • A method for simultaneous detection of regulatory phosphine, ethephon, glufosinate and glyphosate in water
  • A method for simultaneous detection of regulatory phosphine, ethephon, glufosinate and glyphosate in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method of simultaneously detecting phosphine, ethylene, grass ammonium phosphine, and glyphosate, including the following steps:

[0043] 1) Production standard curve: including the following steps:

[0044] A. After the grass phosphosate is ultrasound, it takes equal amounts of glyphosate, modulate phosphine, ethylene and grass ammonium phosphine in a polypropylene container, adds ultrapure water, and sets up the dilution to make a mixed standard series of a concentration gradient. The solution, the mass concentration in the standard stock solution is 1 mg / L, and the preservation is stored in -18 ° C.

[0045] B. The mixed standard series solution obtained by step A is subjected to ion chromatography to give glyphosate, modulate phosphine, ethylene and grass phosphine ion chromatography standard spectrum, with chromatographic peak area as ordinate, corresponding mass concentration is horizontal The coordinates are made by standard graphs, and the glyphosate-changing li...

Embodiment 2

[0053] A method of simultaneously detecting phosphine, ethylene, grass ammonium phosphine, and glyphosate, including the following steps:

[0054] Mineral water was collected with polypropylene containers, and the mineral water sample was sequentially analyzed by the activated Ag column, Na column and 0.22 μm nylon filtration membrane, using Example 1 ion chromatography.

Embodiment 3

[0056] A method of simultaneously detecting phosphine, ethylene, grass ammonium phosphine, and glyphosate, including the following steps:

[0057] Pure water was collected with polypropylene containers, and purified water samples was 0.22 μm nylon filtration membrane, and the ion chromatography in Example 1 was analyzed.

[0058] Table 1 Example 1 4 compound recovery results in water samples (living drinking water)

[0059]

[0060]

[0061] Note: ND indicates that it is not checked.

[0062] Table 2 Example 2 4 compound recovery results in water samples

[0063]

[0064] Table 3 Example 3 Sucker Results of 4 Compounds in Waters

[0065]

[0066]

[0067] Under optimization conditions, the mixed standard solution of the series concentration is prepared. Each concentration is measured twice. With the peak area as the ordinate, the solution concentration is a horizontal coordinate, establish a standard working curve, and calculate the signal-to-noise ratio S / N = 3. limit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for simultaneously detecting regulatory phosphine, ethephon, glufosinate and glyphosate in water. The method of the invention can simultaneously detect four kinds of highly polar pesticide residues in domestic drinking water and packaged drinking water. Qualitative and quantitative determination, including the determination of plant growth regulators and herbicides, provides an effective monitoring method for food safety and environmental protection. In the present invention, the detection limits of the method for regulating phosphine, ethephon, glufosinate-ammonium and glyphosate are 2.0 μg / L, 8.0 μg / L, 5.0 μg / L, 40 μg / L respectively, the detection limit is low, and the result is accurate, It can detect pesticide residues without organic reagents, and does not require complex pretreatments such as derivatization, which is environmentally friendly and efficient.

Description

Technical field [0001] The present invention belongs to the field of biological environmental protection, and more particularly to a method of simultaneously detecting phosphine, ethylene, grass ammonium phosphine and glyphosate in water. Background technique [0002] In agriculture, phosphine, ethylene, grass ammonium and glyphosate have been widely used, and have residues in water, soil, fruit, vegetables and grains. Glyphosate, Gly, belongs to broadcasters, non-selective, kneelts, herbicides, low price and excellent herbicide, has been used as low-toxic environment-friendly pesticides worldwide, is widely used In less, herowa-free landing and high stalk crop field-oriented protected sprays. The glyphosate is low, it is difficult to gasification, and it is not retained on a conventional inverting column, so it is difficult to separately use a gas chromatography; and glyphosate is similar to the amino acid, amino sugar in the nature, lack of life. The color group is difficult to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/14G01N30/34G01N30/96
CPCG01N30/02G01N30/14G01N30/34G01N30/96
Inventor 张文邱国玉闫君陈婷王亚蓉
Owner 兰州市食品药品检验所