Detection system of anionic detergent

Abstract

The invention discloses a detection system of an anionic detergent, and relates to the technical field of environmental protection and detection devices. The detection system comprises a peristaltic pump, a sample extraction module, a sample separation module and an anionic detection module, wherein the sample extraction module comprises a sample mixing device and a single extraction device which are sequentially communicated; the sample separation module comprises a gravity separation device and a back-extraction device; the anionic detection module comprises a microfiltration membrane phase separator, a detector and a second waste liquid bottle.With the adoption of the design, a hydrophobic membrane allows a water phase not to permeate into a lower layer of the microfiltration membrane phase separator; an influence of equipment pressure is small; no water phase enters the detection system; the problems that the water phase and a trichloromethane phase separation interface are unbalanced due to large whole pressure change of equipment, the water phase enters the detection system and detection cannot be continued are avoided.

Description

technical field [0001] The invention relates to the technical field of environmental protection and detection devices, in particular to an anion detergent detection system. Background technique [0002] In the field of environmental detection, the content of anionic surfactants is an important water environment detection index. The laundry detergent, washing powder, etc. important source of pollution. [0003] At present, the detection of this project has introduced the continuous flow analyzer, which mainly injects the sample, methylene blue and chloroform into the closed chemical reaction module automatically through the peristaltic pump, and automatically completes the process of extraction, colorimetry and calculation. Thanks to the automated equipment, there is basically no contact between the human body and the chloroform phase, and the pressure during the extraction process is relatively stable, no emulsification will occur, and the accuracy and reproducibility of th...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of anionic detergent detection system, to solve the problems in the above-mentioned prior art, so that the equipment can avoid the separation of the water phase and the chloroform phase due to the large change of the overall pressure of the equipment under the pressure of the pipeline. The interface is unbalanced, and the water phase enters the detection system, resulting in the problem that the detection cannot continue

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