Detector for detecting trace substance of fluid

A detector and trace technology, applied in the field of detectors, can solve the problems of insufficient sensitivity and the inability to completely and objectively reflect the characteristics of biologically active substances, and achieve the effect of improving detection sensitivity and strengthening detection signals

Inactive Publication Date: 2006-12-13
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, all the above methods are limited by the detection principle. The former can only detect those substances that can react with the markers, but can’t do anything for the substances that have no interaction with the markers. Most of the sensitivity is not high enough, and most of the substances to be tested have It is unknown whether the biological activity will change after reacting with the marker, or whethe

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  • Detector for detecting trace substance of fluid
  • Detector for detecting trace substance of fluid
  • Detector for detecting trace substance of fluid

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Embodiment Construction

[0017] Below in conjunction with embodiment the specific embodiment of the present invention is described in further detail:

[0018] Taking the common diabetes detection in medicine as an example, the urine samples of diabetic patients contain glucose, but the urine samples of healthy people do not. Figure 5 shown. It can be seen from the figure that the urine sample of diabetic patients is 1366cm -1 and 1037cm -1 There are obvious differences in the characteristic absorption peak of glucose from healthy people, 1037cm -1 (Quoted from "Application of Infrared Spectroscopy in Organic Chemistry and Medicinal Chemistry" edited by Xie Jingxi, Chang Junbiao, Wang Xuming, Science Press, 2001, p. 487). Therefore, we design the detection peak at 1037cm -1 , the reference peak position can be designed in the non-absorbing area near the detection peak position. In this embodiment, the design is at 950cm -1 . From this, it is determined that the depth of the groove is 0.89 μm, an...

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Abstract

This is a tester to test the mini quantity materials in the fluid testament. This tester comprises sample room, the band pass filter plate, and two infrared detectors. The sample room is designed base to the principle of F-P interference its action is about to the resonance action of double pass ways filter plate. One of the two pass way's position is designed as the absorbed characteristic crest value position of tested fluid sample, the other pass way's position is designed as the non absorbed crest value position of tested fluid sample, it is consult crest position. According to the relative change of strengthen between two transmission crest to test out the contained quantity of the tested sample.

Description

technical field [0001] The invention relates to a detector, in particular to a detector for detecting trace substances in a fluid. Background technique [0002] With the development of society and the advancement of technology, people use chemicals and new materials more and more frequently. The number of chemicals registered in the American Chemical Abstracts alone has exceeded 18 million, and it is estimated that 100,000 have entered the environment. Many of them are poisonous and harmful substances that destroy ecological balance and endanger human health, and even carcinogenic, distorting and mutagenic substances that threaten human survival, and some substances have very low pathogenicity. can cause great harm to the human body. In addition, in order to diagnose antigens or antibodies such as bacteria, viruses, and spirochetes in infectious diseases, such as HIV antibodies in serum, ultra-trace active substances such as insulin, growth hormone, thyroxine, progesterone ...

Claims

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Application Information

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IPC IPC(8): G01N21/27G02B5/20G01N21/35
Inventor 陆卫王少伟陈效双李宁李志锋季亚林
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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