Two-way infrared spectrum analysis system and testing method thereof

A technology of infrared spectrum analysis and infrared light, which is applied in the direction of material analysis, material analysis, and measuring device by optical means, which can solve the problems of weak regularity, unfavorable influence of trace sample detection, and long detection time.

Active Publication Date: 2015-10-07
GUANGZHOU HUAYOU MINGKANG OPTOELECTRONICS TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, this infrared spectroscopic analysis technology is only equipped with a two-chamber detection unit. 13 When analyzing and testing C-UBT, it is first necessary to detect a group of subjects who have not taken 13 CO 2 The exhaled breath (original gas) before the urea reagent, and then test a group taking 13 CO 2 The exhaled gas (sample gas) after the urea reagent was analyzed by the infrared spectrum detection system of the two groups respectively, and the concentration in the exhaled gas before

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  • Two-way infrared spectrum analysis system and testing method thereof
  • Two-way infrared spectrum analysis system and testing method thereof
  • Two-way infrared spectrum analysis system and testing method thereof

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0034] See figure 1 , the present invention relates to a two-way infrared spectrum analysis system, which is based on 12 CO 2 and 13 CO 2 There is a slight specific absorption difference of only 0.1um around the wavelength of 4.3um and 4.4um, and the best matching high-selectivity infrared detector can be measured separately 12 CO 2 and 13 CO 2 The change of the spectral absorption intensity can achieve the purpose of calculating the change of its concentration.

[0035] Its preferred embodiment includes two-way four-gas chamber light source, the first 12 C air chamber 5A, the second 12 C air chamber 5B, the first 12C detector 6A, second 12 C detector 6B, first 13 C air chamber 7A, the second 13 C air chamber 7B, the first 13 C detector 8A, second 13 C detector 8B, signal processing device, exhaust three-way valve 14, first sample suc...

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Abstract

The invention relates to a two-way infrared spectrum analysis system which comprises a two-way four-air-chamber light source, a first 12C air chamber, a second 12C air chamber, a first 12C detector, a second 12C detector, a first 13C air chamber, a second 13C air chamber, a first 13C detector, a second 13C detector, a signal processing device, a three-way exhaust valve, a first specimen suction pump, a second specimen suction pump, a first specimen suction control valve, a second specimen suction control valve, a first specimen container, a second specimen container and a double-head exhaust pump. The two-way four-air-chamber light source supplies pulse infrared signals to the first 12C air chamber, the second 12C air chamber, the first 13C air chamber and the second 13C air chamber. The invention further relates to a testing method of the two-way infrared spectrum analysis system. According to the two-way infrared spectrum analysis system and the testing method thereof, the testing performance is stable, the precision is high, and rapid point-of-care test can be performed on a patient expiration sample gas sample and a patient expiration original gas sample simultaneously.

Description

technical field [0001] The present invention relates to a 13 C An analysis system for breath test diagnosis of diseases, in particular to a dual-path infrared spectrum analysis system and a detection method thereof. Background technique [0002] The breath test is a non-invasive method for in vitro detection of labeled compounds after they are introduced into the body for metabolism. Stable isotope ratio analysis can be used in medicine to diagnose diseases. When the subject takes isotope-containing drugs, the metabolic function of the organism can be determined by measuring the isotope concentration or concentration ratio changes in the breath. Since 1987, Graham et al first reported the use of stable isotope carbon 13( 13 CO 2 ) to mark the urea breath test ( 13 Since the successful application of C-UBT to detect gastric Hp infection, the breath test has been widely used in the clinical detection and research of gastric Hp infection, liver reserve function, pancreatic ...

Claims

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Application Information

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IPC IPC(8): G01N21/3504
Inventor 龚爱华孙绪良
Owner GUANGZHOU HUAYOU MINGKANG OPTOELECTRONICS TECH
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