Inorganic arsenic detection pretreatment simple purification system and method

Abstract

The invention belongs to the field of food detection technologies and discloses an inorganic arsenic detection pretreatment simple purification system and method. The system is provided with a base box; a boss is arranged inside the base box; an atomic fluorescence spectrometer is fixed to the boss through bolts; a second centrifuge is fixed to the base box through a bracket; the second centrifugeis connected with the atomic fluorescence spectrometer through a conduit; a vibration box is fixed to the upper end of the base box through bolts; a first centrifuge is fixed to the upper end of thevibration box through bolts; the upper end of the first centrifuge is provided with a filter box; the filter box is provided with a filter net; a funnel is fixed to the upper end of the filter box through bolts; a crusher is fixed inside the funnel through bolts; and a connection channel between the vibration box and the first centrifuge is provided with a small-hole filter net. With the system and method of the invention adopted, detection steps can be greatly simplified; and a collecting device at the bottom of the system is set to be the closed base box, and therefore, it can be effectivelyensured that an obtained test sample is free from external pollution.

Description

technical field [0001] The invention belongs to the technical field of food detection, and in particular relates to a simple purification system and method for pretreatment of inorganic arsenic detection. Background technique [0002] In nature, arsenic exists mostly in igneous and sedimentary rocks in the form of inorganic arsenic compounds. Arsenic-containing wastewater and waste discharged from industrial and mining development and arsenic-containing pesticides and herbicides used in agriculture are also one of the sources of arsenic. Inorganic arsenic is a form of arsenic. Eating a large amount in a short period of time can cause acute poisoning, and long-term excessive intake can damage the skin and chronic liver disease. Inorganic arsenic is commonly known as "arsenic". In 1980, the International Agency for Research on Cancer officially recognized inorganic arsenic as a human carcinogen. Arsenic poisoning is generally caused by excessive doses of arsenic-containing d...

AI Technical Summary

Problems solved by technology

[0004](1) In the existing simple purification system for pre-treatment of inorganic arsenic detection, each operation is separated, resulting in increased detection steps and reduced work efficiency

[0005](2) The existing simple purification system for pre-treatment of inorganic arsenic detection does not install speed sensor and vibration sensor as the work feedback of centrifuge and vibration motor, due to external factors Or internal factors change the working state, resulting in a reduction in the effect of vibration and centrifugation, affecting the detection results of inorganic arsenic and reducing the accuracy of detection

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