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On-line automatic monitor for total lead

An automatic monitoring, peristaltic pump technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of secondary pollution accuracy, sensitivity and reliability, etc.

Active Publication Date: 2012-12-05
YIWEN ENVIRONMENTAL SCI & TECH GUANGZHOU
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a dual-wavelength colorimetric method using a high-sensitivity porphyrin compound, aiming at the secondary pollution easily caused by the national standard method dithizone method and the defects of the existing colorimetric method in terms of accuracy, sensitivity and reliability. Water quality on-line automatic monitor for determining total lead

Method used

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  • On-line automatic monitor for total lead
  • On-line automatic monitor for total lead
  • On-line automatic monitor for total lead

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Embodiment Construction

[0026] figure 1 Shown is a schematic diagram of the structure and principle of the total lead online automatic monitor, including: peristaltic pump 1, liquid level detector 2, measuring cup 3, ten-hole multi-position valve 4, water sample, reagent, distilled water, digestion tank 5, heating resistor Silk 6, dual-wavelength colorimetric device 12, reagents include digestion solution, buffer solution, chromogenic agent, emulsifier, standard sample; water sample, digestion solution, buffer solution, chromogenic agent, emulsifier, standard sample, distilled water and The distribution port of the ten-hole multi-position valve 4 is connected, the lower end of the measuring cup 3 is connected with the common port of the ten-hole multi-position valve 4, the peristaltic pump 1 is connected with the upper end of the measuring cup 3 through a pipeline, and the measuring cup 3 is connected to the upper end of the measuring cup 3. The upper and lower parts are respectively equipped with a ...

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Abstract

The invention discloses an on-line automatic monitor for total lead. The monitor comprises a peristaltic pump, liquid level detectors, a measuring cup, a ten-hole multi-position valve, a water sample, a reagent, distilled water, a digestion cuvette, heating resistance wires and a dual-wavelength colorimetric device, wherein the water sample, the reagent and the distilled water are connected with distribution ports of the ten-hole multi-position valve respectively; the lower end of the measuring cup is connected with a public port of the ten-hole multi-position valve; the peristaltic pump is connected with the upper end of the measuring cup through a pipeline; the liquid level detectors are arranged on the measuring cup; and two distribution ports of the ten-hole multi-position valve are connected with liquid inlets / outlets of the digestion cuvette and the dual-wavelength colorimetric device respectively. The on-line automatic monitor for the total lead determines lead by using highly sensitive porphyrin color development agents, is combined with dual-wavelength colorimetry, and has the characteristics of high selectivity, accuracy and sensitivity.

Description

technical field [0001] The invention relates to an online automatic monitor for water quality in the field of environmental protection, in particular to an online automatic monitor for total lead. Background technique [0002] Lead is a heavy metal element that is harmful to the body. It can form toxic inorganic lead and organic lead with many inorganic and organic substances. It usually exists in the discharge wastewater of electroplating, metallurgy, mining and other industries. Today, when the coordinated development of society, economy and environment is advocated, for the common interests and sustainable development of all mankind, effective monitoring and control of lead discharge, more effective evaluation and control of lead pollution have become an item that we must attach great importance to. Task. Therefore, water quality monitoring requires more accurate and stable monitoring instruments to meet the needs of modern human and environmental monitoring developmen...

Claims

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Application Information

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IPC IPC(8): G01N21/31
Inventor 刘宇兵石平赵艳梅
Owner YIWEN ENVIRONMENTAL SCI & TECH GUANGZHOU
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