Combined chemical spectral detection system

A combined chemistry and spectroscopic detection technology, which is applied in color/spectral characteristic measurement, material analysis through optical means, and measurement devices, etc., can solve problems such as compounds that cannot analyze fluorescent substances, strong background noise, and small application range

Active Publication Date: 2006-12-20
MICROVAST POWER SYST CO LTD
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Problems solved by technology

This method has the following disadvantages: 1) Since many chemical reactions have thermal effects, it is impossible to determine what products are generated; 2) The products and products on the catalyst sample plate diffuse with each other, and the products will also react and release heat on other samples; 3) Due to the different composition of solid catalytic materials, even at the same temperature, the infrared radiation intensity will be different, resulting in noise, and the background noise is very strong
Its working principle is to use a chemical reagent to react with an analyte to generate a fluorescent substance, and then generate fluorescence under the action of ultraviolet light, and collect data using fluorescence imaging, which effectively extends the Edward S . The scope of application of the fluorescence imaging method developed by Yeung, but it still cannot analyze those compounds that cannot generate fluorescent substances through chemical reactions, and its application scope is small

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Embodiment Construction

[0014] Determination of acrolein concentration

[0015] Mix 1.0 mL of 0.10M potassium dichromate solution, 1.0 mL of 1.0M sulfuric acid and 200 μL of acrolein solutions with concentrations of 0.15M, 0.25M, 0.35M, 0.55M, 0.75M and 0.85M to obtain six solution samples. After reacting for half an hour, take 80μL of each in the array sample pool for analysis, and get figure 2 Photos (other blanks are water samples). In addition, prepare a blank contrast water sample array, and obtain image 3 photo, figure 2 with image 3 The corresponding data are listed in Table 1 and 2 respectively. The difference between the integrated transmission values ​​of the corresponding samples in Table 2 and Table 1 corresponds to the absorbance value. Determine the concentration of acrolein from the absorbance value and the standard curve. Table 3 lists the actual preparation concentration value, absorbance value, actual measurement concentration and error of acrolein.

[0016] 50235

[0017]...

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Abstract

The invention discloses a spectro-detecting system, which is characterized by the following: realizing synchronous multi-group detection for multiple samples in the composite sample library through different frequency optical sources; containing variable frequency or utility serial filtrate light source, detecting plate with M*N transmission sample pools (M and N is between 2 and 100 or more) and high-resolution CCD digital detector for device (as picture displays); detecting transmission information through high-resolution CCD digital camera; calculating the density of specific material in kinds of samples according to background and data through self-designed software; analyzing quantatively for hundreds of samples within several seconds for combined chemical samples.

Description

Technical field [0001] The invention relates to a spectroscopic detection system that utilizes the characteristics of a substance having a specific absorption frequency in the ultraviolet and visible light regions and analyzes hundreds of organic or inorganic samples at the same time, and is particularly suitable for the analysis of a combined chemical sample Library. Background technique [0002] The characteristic of combinatorial chemistry is that it can synthesize a large number of samples in a short time and conduct rapid detection. Whether it has the ability to analyze a large number of samples and process massive data at the same time is the key to the success or failure of combinatorial chemistry research. Product characterization and quantitative analysis are often the bottleneck of combinatorial chemistry. [0003] In combinatorial catalysis research, a multi-channel gas chromatography (GC) detection system was designed for product analysis (Thomas N. Corso et al., US 6...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/03
Inventor 易江平黄莉李文生周小平
Owner MICROVAST POWER SYST CO LTD
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