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Method for analyzing water toxicity

An analysis method and toxicity technology, which are applied in the field of water toxicity analysis methods and devices, to achieve the effects of reducing the interference of human or environmental factors, improving the efficiency of water sample analysis, and having a large dynamic range.

Active Publication Date: 2013-02-20
云南聚光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the existing automatic water quality comprehensive toxicity analysis technology can only analyze the toxicity of a single concentration of the sample, and cannot meet the application problems of high toxicity or a wide range of toxicity changes, the present invention provides a new water quality comprehensive toxicity analysis method and The device, the method and the device adjust the flow rate of the measured water sample and the diluent through linkage, realize the dynamic adjustment of the dilution degree of the water sample, and perform toxicity detection on the water samples of different dilution degrees, and obtain a series of water samples related to different dilution degrees Toxicity data, so as to realize the toxicity detection of water samples with a large dynamic range, and solve the problem of sample analysis with uncertain toxicity intensity and possible wide range of changes

Method used

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  • Method for analyzing water toxicity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 2 As shown, a water quality comprehensive toxicity analysis device includes a flow adjustment unit, a detection liquid supply unit, a mixing unit, a detection unit 31, and a processing unit connected in sequence.

[0045] The flow adjustment unit includes pumps 11 and 12. The pump 11 is used to drive the diluent (such as a clean water sample or a concentrated water sample) into the analysis flow path at a certain flow; the pump 12 is used to drive the measured water sample to a certain The flow enters the analysis flow path. Therefore, the ratio of the flow rate of the measured water sample and the diluent can be adjusted by the pumps 11 and 12 to obtain water samples with different dilutions.

[0046] The mixing unit includes a first mixing unit 21 and a second mixing unit 22, which are used to mix the liquid sent from the analysis flow path, and a stirring mixer, a mixing pipeline or other mixing devices can be used.

[0047] The detection liquid supply unit...

Embodiment 2

[0058] Such as Image 6 As shown, a comprehensive water quality toxicity analysis device, which differs from Example 1 is:

[0059] 1. A third mixing unit 23 is provided, and the third mixing unit is provided between the first mixing unit 21 and the second mixing unit 22;

[0060] 2. Set up a water sample regulator supply unit, including a water sample regulator (such as sodium chloride solution) and a pump 14. The water sample regulator is driven by the pump 14 between the second mixing unit 22 and the third mixing unit 23 Enter the analysis flow path. The diluent, the tested water sample and the water sample conditioner are fully mixed in the third mixing unit 23.

[0061] This embodiment also discloses a comprehensive water quality toxicity analysis method, including the following steps:

[0062] a. The diluent enters the analysis flow path driven by the pump 11; the tested water sample enters the analysis flow path driven by the pump 12; the diluent entering the analysis flow pat...

Embodiment 3

[0070] Such as Figure 8 As shown, a water quality comprehensive toxicity analysis device, which is different from Example 2 is:

[0071] 1. A bubble removal unit is provided between the first mixing unit 21 and the detection unit 31 to remove bubbles in the mixed liquid.

[0072] 2. The water sample regulator uses a mixture of sodium chloride and sodium thiosulfate.

[0073] This embodiment also discloses a comprehensive water quality toxicity analysis method, including the following steps:

[0074] a. Driven by the pump 11, the diluent enters the analysis flow path; driven by the pump 12, the measured water sample enters the analysis flow path; the diluent entering the analysis flow path merges with the measured water sample and flows through the second mixing unit 22. Realize mixing to obtain diluted water sample;

[0075] At the beginning of the analysis, the pump 12 drives the tested water sample at a flow rate of 16ml / min, while the pump 11 drives the diluent at a flow rate of 0...

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Abstract

The invention relates to a method for analyzing water toxicity, which comprises the following steps: a, introducing a tested water sample and diluents into an analysis flow path, and adjusting the flow ratio of the tested water sample and the diluents to obtain water samples of different dilutions; b, introducing test solution into the analysis flow path, and mixing the test solution and the water samples of different dilutions to obtain mixed solution; and c, testing and analyzing the signal of the mixed solution to acquire toxicity data corresponding to the water samples of different dilutions and determining the toxic characteristics of the tested water sample. The invention also provides a device for implementing the method. The method and the device can determine the toxic characteristics of the tested water sample comprehensively.

Description

Technical field [0001] The invention relates to a toxicity analysis, in particular to a water toxicity analysis method and device. Background technique [0002] The comprehensive toxicity analysis technique of luminescent bacteria method uses the degree of inhibition of the luminescence characteristics of specific bacteria by the poison in the sample to characterize the comprehensive toxicity of the sample. It has a wide range of applications in the toxicity evaluation of drinking water, wastewater, liquid food, soil extract and many other fields. The theoretical basis of this method for the quantitative analysis of the toxicity of the test sample is to compare the luminosity of the luminescent bacteria after contacting the non-toxic control sample and the unknown test sample respectively, and calculate the luminescence inhibition rate: [0003] H ( % ) = 100 ( 1 - I t I 0 ) [0004] Where I 0 Is the luminosity of the bacterial solution afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/76
Inventor 项光宏樊小燕
Owner 云南聚光科技有限公司
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