Method for detecting content of N, N-dimethylformamide in solid waste

A technology of dimethylformamide and solid waste, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of being unfriendly to the human body and the ecological environment, difficult to process samples in large quantities, unfavorable automatic operation, etc., and achieve chemical polarity Strong, low cost, non-volatile effect

Pending Publication Date: 2021-12-10
SHANDONG ACAD OF ENVIRONMENTAL SCI CO LTD +1
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Problems solved by technology

This method is relatively cumbersome and complicated, thus requiring the consumption of a large amount of organic reagents, which is not friendly to the human body and the ecological environment
Moreover, the fast solvent extractor can only extract up to 6 samples at a time, which takes a long time and is difficult to process samples in large quantities, which is not conducive to automatic operation

Method used

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  • Method for detecting content of N, N-dimethylformamide in solid waste
  • Method for detecting content of N, N-dimethylformamide in solid waste

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. rather than all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] A kind of detection method of N,N-dimethylformamide content in solid waste, comprises the following steps:

[0029] 1. Prepare the following reagents and materials: Experimental water: double distilled water or water prepared by pure water equipment; sodium hydroxide: high-grade pure; sodium chloride: burn in a muffle furnace at 400°C for 4 hours before use, and pl...

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Abstract

The invention discloses a method for detecting the content of N, N-dimethylformamide in solid waste. The method comprises the following steps: dispersing the solid waste in an alkaline solution to obtain a mixed solution, heating the mixed solution to obtain a dimethylamine solution, detecting the content of dimethylamine in the dimethylamine solution, and calculating the content of N, N-dimethylformamide in the solid waste according to the content of dimethylamine. By adopting the technical scheme, the N, N-dimethylformamide is heated in the alkaline aqueous solution to derive and decompose the dimethylamine, and the content of the N, N-dimethylformamide in the solid waste is obtained by indirectly measuring the content of the dimethylamine, so that the process of extracting by using a large amount of solvent is avoided, the test flow is simplified, the consumption of an organic reagent is reduced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of organic matter detection, in particular to a method for detecting N,N-dimethylformamide content in solid waste. Background technique [0002] N,N-Dimethylformamide is a widely used chemical raw material. It is a universal organic solvent. As an important organic chemical raw material and a good solvent, it is often used in medicine, pesticides, leather and textiles, electronics, etc. industry. [0003] Due to the use of industrial production processes and the impact of human activities, the groundwater with residual N,N-dimethylformamide can seep into the natural environment, which seriously endangers the safety of groundwater and will have adverse effects on the environment of groundwater. Long-term exposure of the human body will cause The occurrence of disorders in the central nervous system of the human body, and even liver and kidney damage, has now attracted everyone's attention to environmental po...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/16
CPCG01N30/02G01N30/06G01N30/16G01N2030/067G01N2030/167
Inventor 高冠军刘朋孙慧玲陈昭晶程婷婷马芳黄德毅薛洁闫晗李克香姜浩罗亚飞
Owner SHANDONG ACAD OF ENVIRONMENTAL SCI CO LTD
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