Anion synthetic detergent extracting and analyzing method and device

Abstract

The invention relates to an extracting method, in particular to an anion synthetic detergent extracting and analyzing method and device. The method includes the steps of firstly, injecting a sample into a sample bottle, then injecting a methylene blue reagent to be stirred and mixed, slowly adding a certain amount of chloroform in the stirring process to continue to be evenly stirred for stirring extraction, and then conducting standing; secondly, extracting chloroform and part of residual solution out of the sample bottle, injecting chloroform and part of residual solution into a back extraction bottle to be evenly stirred, sealing the back extraction bottle, discharging residual solution and chloroform into a waste liquid bucket through pressure, and injecting detergent into the rest certain amount of chloroform for back extraction; thirdly, making back extraction chloroform enter a water filter, and injecting filtered chloroform into a cuvette for test detection. The detection method is simple, the method is high in accuracy and precision and can be controlled, and detection sensitivity is improved. Automatic continuous sampling can be achieved in the extraction process, and the extracted sample can meet the requirement for batched analysis and real-time monitoring of water samples.

Description

technical field [0001] The invention relates to a filtering method, in particular to an anionic synthetic detergent extraction and analysis method and device. Background technique [0002] Water sample pretreatment is an important part of analysis and detection. When performing water quality analysis and determination, traditional water sample pretreatment uses manual extraction followed by static layering and separation. A separating funnel is used to extract the analyte by manual vibration, and the target object is collected after the reagents are left to stand and stratified. Using this method to process water samples is labor-intensive, the operator directly contacts the reagents, and the toxic extract is likely to cause harm to the human body, and the manual operation has large errors and low precision, which cannot meet the requirements for batch analysis and real-time monitoring of water samples. Contents of the invention [0003] The technical problem to be solved...

AI Technical Summary

Problems solved by technology

Using this method to process water samples is labor-intensive, the operator directly contacts the reagents, and the toxic extract is likely to cause harm to the human body, and the manual operation has large errors and low precision, which cannot meet the requirements for batch analysis and real-time monitoring of water samples.

Images