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Manufacturing method of water-quality acute toxicity high throughput rapid determination reagent kit and using method thereof

An acute toxicity and rapid determination technology, applied in the preparation of test samples, analysis through chemical reactions of materials, chemiluminescence/bioluminescence, etc., can solve the problems of instability of lactose solution, change of sample properties, waste, etc. Achieve the effects of saving manpower and economic costs, improving accuracy and reliability, and reducing costs and difficulties

Active Publication Date: 2013-06-12
BEIJING DRAINAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following problems in the test process: the first, the 10% lactose solution is unstable, and the phenol mother liquor configured with 10% lactose can only be stored for 2 days at most in a refrigerator at 4 ° C, and should be measured immediately after configuration; and 100ml Only 63.5ml and 18ml of the 1000mg / L mother solution and 450ml serial standard solutions were used during the experiment, so that the phenol solution could not be fully used, causing a lot of waste, and the collected phenol waste solution increased harmful substances The cost and difficulty of disposal may cause serious pollution to the environment
Second, 10% lactose is difficult to dissolve naturally after being added to the sample, and heating is required during the dissolution process, which will change the properties of the sample and affect the accuracy of the results
Third, since the luminous intensity of luminescent bacteria will change with time, when using a conventional photometer to detect a single light intensity, it is necessary to measure a control for one sample, which is time-consuming and labor-intensive, and increases the cost.

Method used

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  • Manufacturing method of water-quality acute toxicity high throughput rapid determination reagent kit and using method thereof
  • Manufacturing method of water-quality acute toxicity high throughput rapid determination reagent kit and using method thereof
  • Manufacturing method of water-quality acute toxicity high throughput rapid determination reagent kit and using method thereof

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Effect test

Embodiment 1

[0052] Embodiment 1: The production method of the high-throughput rapid determination kit for acute toxicity of water quality is produced according to the following steps:

[0053] 1) Preparation of luminescent bacteria freeze-dried powder:

[0054] (a) Bacteria cultivation: select luminescent bacteria cultivated under laboratory conditions, cultivate to logarithmic growth phase, and blue-green fluorescence can be observed in the dark room;

[0055] (b) Bacteria solution concentration: refrigerate and centrifuge the bacteria solution in the logarithmic growth phase at 4°C and 5000r / min for 15min, and discard the supernatant;

[0056] (c) Bacteria liquid suspension: resuspend the concentrated bacterium liquid in 10% skimmed milk, 5% lactose and 0.8% sodium chloride preservative;

[0057] (d) Subpackage: use a pipette to draw 2ml of the luminescent bacteria suspension from the above bacterial solution into a sealable bottle;

[0058] (e) Freezing and preservation: the sealed b...

Embodiment 2

[0077] Embodiment 2: The method for using the high-throughput rapid determination kit for acute toxicity of water quality. The sample to be determined is the total influent of the sewage treatment plant, and the following steps are followed:

[0078] 1) Resuscitation of freeze-dried bacteria powder: place the freeze-dried powder and recovery solution in a refrigerator at 4°C for 15 minutes, then quickly inject the recovery solution into the bottle containing the luminescent bacteria freeze-dried powder, and then transfer the bacteria solution to a Put it into a clean test tube, then add an appropriate amount of resuscitation solution according to the amount of the sample, mix well and let it stand for 10-15 minutes;

[0079] 2) Configuration of phenol series standard solutions: Use phenol mother liquor to prepare a series of phenol solutions of 20, 40, 80, 100, 120, 160, 200, 250 and 300 mg / L. The configuration method is marked with ①, ②, ③, Add 4.9, 4.8, 4.6, 4.5, 4.4, 4.2, 4...

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Abstract

The invention relates to a manufacturing method of a water-quality acute toxicity high throughout rapid determination reagent kit and a using method of the water-quality toxicity high throughput rapid determine reagent kit. The manufacturing method of the toxicity high throughput rapid determination reagent kit comprises the following steps: (1) preparing photobacteria lyophilized powder; (2) configuring broth dilution water; (3) configuring phenol mother liquid; and (4) producing accessories and packing. The using method of the water-quality acute toxicity high throughout rapid determine reagent kit comprises the following steps: (1) reviving the bacteria lyophilized powder; (2) configuring standard solution of phenol series; (3) measuring residual chlorine; (4) measuring the potential hydrogen (pH) value; (5) preprocessing samples; (6) comparing and preparing dilution of the samples; (7) measuring accuracy of a standard curve of the phenol; (8) adding the photobacteria; (9) measuring light intensity; (10) calculating a result; (11) ensuring and controlling the quality; and (12) expressing the toxicity of the samples. The manufacturing method of the water-quality acute toxicity high throughput rapid determination reagent kit and the using method of the water-quality acute toxicity high throughput rapid determine reagent kit have the advantages of being applicable to rapid measurement of the water-quality toxicity, perfect in manufacturing and using, low in cost, and rapid and accurate in measurement.

Description

technical field [0001] The invention relates to the technical field of a kit, in particular to a method for making and using a kit for measuring the acute toxicity of water substances by using freshwater luminescent bacteria. Background technique [0002] At present, "Water and Wastewater Monitoring and Analysis Methods" (Fourth Edition) provides a method for evaluating water quality toxicity using freshwater Vibrio Qinghai, which requires the use of standard toxic substance phenol (solvent is 10% lactose solution) to test the luminescent bacteria before the test. Quality testing to ensure that the luminescent bacteria respond accurately to water quality toxicity in a good state, and 10% lactose must also be added to the sample to be tested. This method has the following problems in the test process: the first, the 10% lactose solution is unstable, and the phenol mother liquor configured with 10% lactose can only be stored for 2 days at most in a refrigerator at 4 ° C, and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76G01N1/38
Inventor 李雪梅柯真山李魁晓杨彤
Owner BEIJING DRAINAGE GRP CO LTD