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Automatic analysis recorder of liquid UV light

An automatic analysis, ultraviolet light technology, applied in the field of measurement, can solve the problems of low accuracy of detection results and large energy drift, and achieve the effect of increasing accuracy and eliminating drift.

Inactive Publication Date: 2009-06-03
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of large energy drift and low detection result accuracy in the online detection of existing ultraviolet detectors, so as to provide a liquid ultraviolet light automatic detector that can eliminate drift, eliminate stray light, and have high detection result accuracy. Analytical recorder

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  • Automatic analysis recorder of liquid UV light
  • Automatic analysis recorder of liquid UV light

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Embodiment Construction

[0019] The liquid ultraviolet light online automatic analysis recorder provided by the invention, its schematic diagram is as follows figure 2 As shown, it includes: on the optical path in the vertical direction, an ultraviolet light source 1, a calibration pool 11, a hollow stainless steel cylinder 4 and a sample pool 8 are arranged in sequence from top to bottom; the diameter of the cylinder 4 is 30 mm, and the length is 50 cm. At the bottom of the tube is a quartz isosceles right-angled prism, near the bottom 1cm is a quartz plate 9, and there are several small holes on the cylinder wall between the quartz plate 9 and the isosceles right-angled prism, so that the liquid to be measured can freely Flow through; or stainless steel cylinder 4 seals the bottom with quartz sheet 9, another separated quartz isosceles right-angled prism and cylinder 4 are connected with a rigid structure, such as using stainless steel bars to fix the quartz isosceles right-angled prism To the lowe...

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Abstract

The invention relates to a liquid UV on-line detecting automatic analysis recorder, arranging UV light source, calibration tank and hollow cylinder in order on vertical light path from the top down, where at the bottom of the cylinder is a quartz isosceles right-angle triple prism, and a quartz plate is close the bottom, and the cylinder wall between the quartz plate and the triple prism are made with several small holes which make measured liquid able to freely pass through; the inclined side of the triple prism is parallel to the quartz plate and two right-angle sides of the triple prism are coated with total reflection film; the lower part of the calibration tank is provided with the other same triple prism and the upper part of the calibration tank is a hollow quartz tank; on the horizontal light path, reflector, light splitter and detector are in turn arranged from left to right. And the invention can eliminate drift and stray light and has highly accurate detection result.

Description

technical field [0001] The invention belongs to the field of measurement, and in particular relates to an automatic analysis recorder for on-line detection of liquid ultraviolet light. Background technique [0002] In industrial production, it is often necessary to record and monitor the content of a certain substance in a liquid in real time through ultraviolet (including visible light) or infrared methods. Existing UV detectors——UV spectrophotometers such as figure 1 As shown, it includes an ultraviolet light source 1 , a spectrometer 6 , a sample cell 8 and a detector 7 . When in use, the light generated by the ultraviolet light source 1 passes through the spectroscopic part 6 first, and then the light of different wavelengths passes through the sample to be tested in the sample cell 8 in time division, and finally enters the detector 7 . [0003] This kind of ultraviolet detector requires manual sampling, and it is difficult to realize online detection. When online mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33
Inventor 郭兴林徐坚李晓锋
Owner INST OF CHEM CHINESE ACAD OF SCI
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