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A multi-range detection system

A detection system, multi-range technology, applied in testing water, material inspection products, analyzing by chemical reaction of materials, etc., can solve problems such as inconvenience, affecting the accuracy of analysis results, unreasonable dilution ratio, etc. , to achieve the effect of rapid detection

Active Publication Date: 2018-01-12
SHIMADZU SEISAKUSHO CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the defect of this method is that the inspectors need to prepare three kinds of potassium dichromate solutions with different concentrations in advance, and the detection system needs to be equipped with three potassium dichromate solution reagent ports, which is easy to cause inconvenience in actual operation and is not conducive to Rapid detection of water quality
[0004] In the prior art, in order to solve the above problems, generally by diluting the water sample to be tested, the diluted water sample is suitable for using a pre-prepared specific concentration of potassium dichromate solution, but this method may be affected by the unreasonable dilution factor. Accuracy of Analysis Results

Method used

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Embodiment 1

[0081] According to attached figure 2 The shown multi-range detection method of chemical oxygen demand of the present invention detects the chemical oxygen demand value of the water sample to be tested, specifically comprising the following steps:

[0082] a. It is expected that the COD value of the water sample to be tested is within the low range, set the range of the detector to 15-250mg / L, and use the COD standard solution to draw the COD standard curve according to the method described in the national standard;

[0083] b. According to the national standard, the concentration of the corresponding potassium dichromate solution is 0.16mol / L, and the volume of the water sample to be tested is 1.5ml. According to the national standard, the volume ratio of the water sample to be tested and the potassium dichromate solution is 3:1 , Therefore, it is determined that the volume of the potassium dichromate solution whose concentration is 0.16mol / L is 0.15mL. Calculate the volume...

Embodiment 2

[0090] as attached Figure 4 As shown, it is a chemical oxygen demand multi-range detection system according to the present invention, which includes a range setting module, a preparation module, a detection module, a judgment module and a display module.

[0091]The range setting module is a human-computer interaction interface, through which a specific range is selected from two or more predetermined continuous ranges;

[0092] The preparation module may be a device including a calculation unit, a reagent storage unit and a preparation unit. The calculation unit is a memory containing a program, and its input end is connected to the output end of the human-computer interaction interface. The signal output by the interactive interface calculates the concentration of the potassium dichromate solution corresponding to the set effective detection range, as well as the required volume of the initial potassium dichromate solution and the required volume of pure water. The reagent...

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Abstract

The invention relates to a detection method for a multi-range detection system, comprising the following steps: a. setting a first effective detection range; b. preparing a detection reagent with a concentration corresponding to the set effective detection range; c. detecting a sample to obtain measured value; d. judging whether the measured value obtained in step c is within the set effective detection range range, wherein: when it is detected that the measured value is within the set effective detection range range, the result is displayed and the detection is terminated; when the measured value is detected When the value is outside the set effective detection range, reset the second effective detection range and repeat steps b, c, and d. The invention also relates to a multi-range detection method for chemical oxygen demand. In addition, the present invention also relates to a multi-range detection system applicable to the above-mentioned detection method and a multi-range detection system for chemical oxygen demand.

Description

technical field [0001] The invention relates to a detection method for a multi-range detection system and a multi-range detection method for chemical oxygen demand. In addition, the present invention also relates to a multi-range detection system applicable to the above-mentioned detection method and a multi-range detection system for chemical oxygen demand. Background technique [0002] At present, most detection systems will set two or more continuous ranges. Different ranges correspond to different detection parameter conditions such as reagent concentration and detection environment. By setting multiple ranges, different ranges can be used for different samples to ensure detection accuracy. However, the corresponding testing personnel need to prepare a variety of testing reagents with different concentrations in advance, which brings a lot of inconvenience to the testing work and is not conducive to rapid testing. [0003] The determination of chemical oxygen demand (C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18G01N21/78
Inventor 徐超板桥亨久
Owner SHIMADZU SEISAKUSHO CO LTD