A kind of method for measuring methyl phosphine dichloride content

A technology for methyl phosphine dichloride and chloride ion content, which is applied in measuring devices, instruments, scientific instruments, etc., and can solve the problems affecting the accuracy of measurement values ​​of methyl phosphine dichloride, high sample preparation requirements, titration interference, etc. problem, to achieve the effect of low cost, high accuracy and less interference
CN109164192BActive Publication Date: 2021-10-12SICHUAN FOURSTAR BIOTECH RANDD CORP
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN FOURSTAR BIOTECH RANDD CORP
Publication Date
2021-10-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for measuring the content of methylphosphine dichloride, which belongs to the technical field of chemical quantitative analysis. In the present invention, high performance liquid chromatography is used to measure chloride ions in the pretreated standard solution, a standard curve is established, and a linear regression equation is made. Then, the pretreated sample solution is measured, and finally the methyl Phosphine dichloride content. The determination method has reasonable design, high accuracy, little corrosion to the instrument, low cost, less interference and good data reproducibility.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for measuring compounds, in particular to a method for determining the content of methylphosphine dichloride, which belongs to the technical field of chemical quantitative analysis. Background technique

[0002] In the preparation process of the herbicide glufosinate-ammonium, methyl phosphine dichloride is an essential intermediate for the synthesis of diethyl methyl phosphite, and there are three raw materials that cannot be completely consumed in the system of synthesizing methyl phosphine dichloride. Phosphorous chloride, in order to improve the yield of methyl phosphine dichloride, need to further grasp the content of two components respectively in the mixed system of methyl phosphine dichloride and phosphorus trichloride, so that add appropriate amount of aluminum trichloride and Methyl phosphine dichloride generates complexes, and the methyl phosphine dichloride is purified.

[0003] Therefore, in order to opti...

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