Intelligent general type mercury measuring device and detection method thereof

Abstract

The invention discloses an intelligent general type mercury measuring device and a detecting method of the intelligent general type mercury measuring device, three interfaces of a four-way valve (11) are respectively communicated with a solid, liquid and gas sample treatment devices (1), target gas output by the four-way valve enters into a mercury enrichment device (3) through a first three-way valve (2),the output end of the mercury enrichment device is communicated with the interface of a second three-way valve (4), the gas enters into an absorption pool (6) and is detected by a photoelectric detector (7); The three-way valve, the four-way valve, the absorption pool, the photoelectric detector and an excitation light source are controlled by a computer (8). The intelligent general typemercury measuring device is an opto-electro-mechanical integrated analysis device and measures the content of mercury by utilizing the mercury enrichment device and the atomic fluorescence technology, overcomes the disadvantage that only a single sample can be measured, can directly measure the solid sample, the liquid sample and the gas sample on the same device and can perform form analysis of mercury in the liquid sample and the gas sample, the intelligent general type mercury measuring device has high universality, high sensitivity, low detection limit and is simple in structure and is low in cost.

Description

technical field [0001] The invention relates to an analytical instrument used in the field of analytical chemistry to measure mercury based on the principle of atomic fluorescence and analytical techniques, especially without the use of complex chemical pretreatment processes, it can directly measure different types of samples, and can perform An intelligent general-purpose mercury measuring device and a detection method for speciation analysis of mercury in liquid and gas samples. Background technique [0002] Due to human factors such as human production and living activities, mercury exists widely in the atmosphere, soil, water, food and other fields, such as chemical industry, smelting industry, electronics industry, mercury thermometer manufacturing industry and fluorescent lamp factory, etc. are the main sources of mercury. In addition, irrigation of soil with sewage, fertilization of sludge, and use of mercury-containing pesticides can all cause man-made mercury pollu...

AI Technical Summary

Problems solved by technology

[0003] At present, the determination of total mercury in samples in the fields of food safety and environmental protection is very concerned at home and abroad, and various special mercury measuring instruments have appeared, but these instruments have shortcomings such as single performance, poor versatility, expensive equipment, and low cost performance. There is no device that concentrates on the same instrument to complete the test of different types of samples and forms such as solid, liquid, and gas, and usually cannot meet the rapid, efficient, and sensitive detection requirements of many actual samples.

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