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Water quality phosphate rapid detection kit and detection method

A detection kit and phosphate technology, applied in the field of analytical chemistry, can solve the problems of expensive instruments, many interfering ions, and inability to meet rapid determination, and achieve the effect of process simplification

Inactive Publication Date: 2017-02-22
GUANGDONG HUANKAI MICROBIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, spectrophotometry is the most commonly used method, but this method requires a large amount of reagents, heavy environmental pollution, many interfering ions, and is cumbersome and time-consuming; other instrumental methods have high sensitivity and good selectivity, but the instruments are expensive and costly. Personnel, unable to meet the needs of on-site rapid determination

Method used

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  • Water quality phosphate rapid detection kit and detection method
  • Water quality phosphate rapid detection kit and detection method
  • Water quality phosphate rapid detection kit and detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Water Quality Phosphate Rapid Test Kit,

[0024] Consists of the following reagents: 2.0mL sample bottle: 1; sampler: 1; 15mL drop bottle: 2; test paper tube with colorimetric label: 1; A reagent is 1:3 sulfuric acid, 15mL; B reagent is 2.0% antimony potassium tartrate accelerator, 5mL; C is 100 test strips / tube.

[0025] Preparation of test strips:

[0026] Prepare a mixed chromogenic solution containing 5.0g / L sodium molybdate, 0.5g / L metol, and 1.5g / L sodium sulfite with pure water. Soak the chromatographic filter paper completely in the above mixture for about 10 minutes, take out the filter paper, and dry it in vacuum at 75°C, cut the filter paper into small pieces of 5×6mm, and stick them on one end of the strip-shaped bottom plate of 5×80mm with glue , to obtain water quality phosphate rapid detection test paper 1#.

[0027] Preparation of standard color chart:

[0028] 1) Use pure water to prepare a phosphate standard solution with a concentration of 25mg / L,...

Embodiment 2

[0032] Water Quality Phosphate Rapid Test Kit,

[0033] Consists of the following reagents: 2.0mL sample bottle: 1; sampler: 1; 15mL drop bottle: 2; test paper tube with colorimetric label: 1; A reagent is 1:3 sulfuric acid, 15mL; B reagent is 2.0 % antimony potassium tartrate accelerator, 5mL; C is 100 test strips / tube;

[0034] Preparation of water quality phosphate rapid detection test paper:

[0035] Prepare a mixed chromogenic solution containing 20.0g / L sodium molybdate, 8.0g / L metol, and 30.0g / L sodium sulfite with pure water. Soak the chromatographic filter paper completely in the above mixture for about 10 minutes, take out the filter paper, and dry it in vacuum at 75°C, cut the filter paper into small pieces of 5×6mm, and stick them on one end of the strip-shaped bottom plate of 5×80mm with glue , to obtain water quality phosphate rapid detection test paper 2#.

[0036] The preparation of the standard color card was prepared according to the method of Example 1. ...

Embodiment 3

[0038] Water Quality Phosphate Rapid Test Kit,

[0039] Consists of the following reagents: 2.0mL sample bottle: 1; sampler: 1; 15mL drop bottle: 2; test paper tube with colorimetric label: 1; A reagent is 1:3 sulfuric acid, 15mL; B reagent is 2.0 % antimony potassium tartrate accelerator, 5mL; C is 100 test strips / tube.

[0040] Preparation of water quality phosphate rapid detection test paper:

[0041] Prepare a mixed chromogenic solution containing 30.0g / L ammonium molybdate, 10.0g / L metol, and 40.0g / L sodium sulfite with pure water. Soak the chromatographic filter paper completely in the above mixture for about 10 minutes, take out the filter paper, and dry it in vacuum at 75°C, cut the filter paper into small pieces of 5×6mm, and stick them on one end of the strip-shaped bottom plate of 5×80mm with glue , to obtain water quality phosphate rapid detection test paper 3#.

[0042] The preparation of the standard color card was prepared according to the method of Example 1...

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Abstract

The invention discloses a water quality phosphate rapid detection kit and a detection method. The kit is composed of a 2.0mL sample bottle, a sampler, two 15mL dropping bottles, a colorimetric mark, 15 mL of a reagent A, namely acid, 5 mL of a reagent B, namely, a rate-accelerating additive and C, namely, test strips of 100 pieces per barrel. By means of the detection kit and the detection method of matched test paper of the detection kit, only 2 min is needed in the whole detection process of phosphate, the process is greatly simplified, the shelf life can reach two years, and great significance is achieved for field phosphate detection of domestic drinking water and source water thereof, boiler water, surface water, underground water, industrial water and waste water.

Description

technical field [0001] The invention relates to a water quality phosphate rapid detection kit and a detection method, belonging to the field of analytical chemistry. Background technique [0002] Phosphorus is one of the elements necessary for the growth of organisms, but excessive phosphorus content in water will cause eutrophication of water quality and affect the ecological balance of water body. Generally, the phosphate content in natural water is not high, and the industrial wastewater and domestic sewage of chemical fertilizer, smelting, synthetic detergent and other industries often contain a large amount of phosphorus. Phosphorus is one of the important indicators for evaluating water quality. [0003] At present, gravimetric method, titration method, ion chromatography, spectrophotometry, atomic absorption spectrophotometry, capillary electrophoresis, flow injection photometry, Raman spectroscopy and electrode potential method are commonly used in the determination...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 李方方吴清平邓金花秦惠
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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