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Method and device for analyzing water toxicity

An analysis method and technology of an analysis device, which are applied in the direction of chemical reaction of materials for analysis, chemiluminescence/bioluminescence, etc., to achieve the effect of improving water sample analysis efficiency, large dynamic range, and reducing the interference of human or environmental factors

Active Publication Date: 2011-01-05
云南聚光科技有限公司
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  • Summary
  • Abstract
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  • 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 and device for analyzing water toxicity
  • Method and device for analyzing water toxicity

Examples

Experimental program
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Embodiment 1

[0044] Such as figure 2 As shown, a water quality comprehensive toxicity analysis device includes a flow regulating 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 clean water sample or water sample with a certain concentration) into the analysis flow path at a certain flow rate; the pump 12 is used to drive the measured water sample to a certain flow rate. Flow enters the analytical flow path. Therefore, the pumps 11 and 12 can be used to adjust the flow rate ratio of the measured water sample and the diluent 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 by the analysis flow path, and a stirring mixer, a mixing pipeline or other mixing devices can be used.

[0047] The d...

Embodiment 2

[0058] Such as Figure 6 Shown, a kind of water quality comprehensive toxicity analysis device is different from embodiment 1:

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

[0060] 2. A water sample regulator providing unit is provided, including a water sample regulator (such as sodium chloride solution) and a pump 14, and the water sample regulator is between the second mixing unit 22 and the third mixing unit 23 driven by the pump 14 into the analytical 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 method for comprehensive toxicity analysis of water quality, comprising the following steps:

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

Embodiment 3

[0070] Such as Figure 8 Shown, a kind of water quality comprehensive toxicity analysis device is different from embodiment 2:

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

[0072] 2. The water sample conditioner is a mixture of sodium chloride and sodium thiosulfate.

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

[0074] 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 path merges with the measured water sample and flows through the second mixing unit 22. Realize mixing to obtain diluted water samples;

[0075] At the initial stage of analysis, the pump 12 drives the water sample to be tested at a flow rate of 16ml / min, while the pump 11 drives th...

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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 an analysis method and device for water quality toxicity. Background technique [0002] The comprehensive toxicity analysis technology of the luminescent bacteria method uses the inhibition degree of the poison in the sample to the luminescent characteristics of specific bacteria to characterize the comprehensive toxicity of the sample, and has a wide range of applications in the toxicity evaluation of drinking water, wastewater, liquid food, soil leachate and many other fields. The theoretical basis of this method for 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(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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