Mercury content measuring method and device

A measurement method and content technology are applied in the field of mercury content measurement and measurement devices, which can solve the problems of harsh experimental conditions, high staff requirements, uneconomical experimental costs, etc., to facilitate disassembly and cleaning, improve measurement results, and ensure photoelectric detection. performance effect

Inactive Publication Date: 2009-07-15
JIANGSU JIANGFEN ELECTROANALYTICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above methods and the measuring devices used have the disadvantages of harsh experimental conditions, uneconomical experimental costs, troublesome operation, and high requirements for staff.

Method used

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  • Mercury content measuring method and device

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Embodiment Construction

[0018] Embodiments of the present invention are further described in conjunction with the accompanying drawings. The measurement process is as follows:

[0019] (1) Blank calibration

[0020] Start the self-circulating sampling pump of the device, and circulate the fresh air filtered by mercury-free deionized water in the calibration measurement colorimetric tube 4, and the reference blank colorimetric tube 2 is filled with inert gas helium, and the ultraviolet light source generator 3 emits Ultraviolet light passes through colorimetric tubes 2 and 4 at the same time, and is converted into electrical signals by photoelectric converters 1 and 10 with the same parameters and sent to the circuit for processing. If the two signals are consistent, the display value on the device panel will be zero. If they are inconsistent, Then adjust the potentiometer so that the display value is zero and complete the blank zero adjustment;

[0021] (2) Calibration of a range value

[0022] Ac...

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Abstract

The invention discloses a mercury content measurement method and device, wherein the measurement method comprises: respectively performing the blank calibration and a some range calibration of the no-mercury air and standard mercury material subjected to ultraviolet light transmission, optical-electrical converter change-over and circuit treatment using a reference blank color comparison tube and a calibration measurement color comparison tube; processing the actual-measurement sampler and circulating the sampler in the calibration measurement color comparison tube, and directly measuring the mercury content based on the said calibration curve. The two color comparison tubes are the optical glass tubes of the same size and the two optical-electrical converters are matched and screened with the same parameters, each relative lens is perpendicular to the color-tube axle and the calibration measurement color comparison tube can be dismounted and cleaned. The mercury content measurement method and device can be used for measuring the content of the poisonous and harmful substance mercury in day-to-day production and living environment with features of simple operation, less input cost, good measurement effect, high reliability and wide application range.

Description

technical field [0001] The invention relates to a measurement method and a measurement device for detecting mercury content in production or living environments developed on the basis of colorimetry. Background technique [0002] In our daily production or living environment, there are many toxic and harmful substances, among which mercury (Hg) and its compounds are highly toxic substances that can accumulate in the body. The hazards of mercury to human health are silent, and the damage results are extremely serious, even threatening people's lives. Therefore, it is particularly important to quickly and accurately detect mercury content in production and living environments. [0003] Cold atomic absorption method and cold atomic fluorescence method are unique methods for determining trace amounts of mercury in water, with few interference factors and high sensitivity. Dithizone spectrophotometry is a general method for the determination of various metal ions. Satisfactory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64G01N21/01
Inventor 王根忠
Owner JIANGSU JIANGFEN ELECTROANALYTICAL INSTR
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