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Method for detecting fluorine content of drinking water and its apparatus

A technology of fluorine content and appliances, applied in the field of fluorine content testing of drinking water, can solve the problems of complex, cumbersome, waste of testing raw materials, etc.

Inactive Publication Date: 2007-05-02
TIANJIN QIYUAN NEW TECH DEV CENT
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

Moreover, if multiple samples are not tested at the same time and at the same time, the above operations must be repeated, which is not only complicated and cumbersome, but also wastes testing raw materials, and it is difficult for non-professionals to test the content of domestic water

Method used

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  • Method for detecting fluorine content of drinking water and its apparatus

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Embodiment Construction

[0010] Utensil production: according to the color of the nine standard colorimetric tubes in the zirconium salt alizarin colorimetric method and the corresponding fluorine content of 0.0, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4mg / L It is made on cardboard, plastic board or plexiglass, and laminated to prevent the color of the color plate from falling off, and then plate-making and printing are carried out to form a standard color comparison plate 1; a flat-bottomed sample test tube 2 with a cover and scale and a diameter of 16×55 mm is prepared. Dropping measuring tube 3; the alizarin zirconium test solution prepared in accordance with the zirconium salt alizarin colorimetric method used in conjunction with the above-mentioned sample test tube and dropping measuring tube, and the dropping quantity is indicated on the alizarin zirconium test solution bottle.

[0011] Based on the above-mentioned equipment, the detection method of fluorine content in water: take a sample test tube...

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Abstract

A method for detecting F-content in drinking water includes adding water sample into test tube up to scale, sucking reagent of Zr salt alizarin into dropper and dropping said reagent into water sample test tube according to drip number labeled on reagent bottle of Zr salt alizarin, closing cap of test tube to mix solution in test tube uniformly, comparing sample tube with standard colorimetric plate to seek out corresponding color for obtaining result of F content in water sample.

Description

1. Technical field [0001] The invention relates to a method for testing the fluorine content of drinking water. 2. Background technology [0002] Usually, the zirconium salt alizarin colorimetric method is used to detect the fluorine content of drinking water. This method has been clearly stipulated in the "Drinking Water Hygienic Standards" of the Ministry of Health and the national drinking water inspection method. In practice, this method needs to be carried out in places and units with relatively high-quality personnel, relatively good inspection conditions, and relatively complete equipment. When testing, firstly make nine standard colorimetric tubes and one sample tube from 0.0-1.4mg / L, then add alizarin zirconium test solution, and perform colorimetry after 40 minutes. And if multiple samples are not tested at the same time and at the same time, the above operations must be repeated, which is not only complicated and cumbersome, but also wastes testing raw materials,...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 李天源
Owner TIANJIN QIYUAN NEW TECH DEV CENT
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