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.
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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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