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Mercury ion test paper as well as preparation method and use method thereof

A technology for detecting test paper and mercury ions, which is applied in the field of mercury ion detection, can solve the problems of unfavorable rapid detection, long detection time, high cost, etc., and achieve the effects of wide testing range, simple production and convenient use

Inactive Publication Date: 2014-01-01
KUNMING BOYIN SCIANDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the detection methods of mercury content include diphenylcarbazone method, cuprous iodide method, ferrocyanide catalytic decomposition method, atomic absorption spectrometry, atomic fluorescence spectrometry, etc. These detection methods not only require laboratory conditions, but also The detection time is longer and the cost is higher, which is not conducive to the realization of on-site rapid detection

Method used

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  • Mercury ion test paper as well as preparation method and use method thereof

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Effect test

Embodiment 1

[0023] Embodiment 1: the preparation method of the mercury ion detection test paper of the present embodiment specifically comprises the following steps:

[0024] a. Dissolve 0.35 g of cadmium reagent in 100 ml of absolute ethanol and shake well to prepare impregnation solution I; the cadmium reagent is p-nitrobenzenediazoaminoazobenzene;

[0025] b. Dissolve 5 ml of arsenic acid in 20 ml of distilled water, then add 20 ml of 40% sodium hydroxide solution, and finally dilute to 100 ml with distilled water to prepare impregnation solution II;

[0026] c. Immerse the filter paper in the impregnation solution I prepared in the step a for 1 minute, take it out and dry it to prepare the test paper I, and store the test paper I in a light-tight dark place. The filter paper can be a qualitative filter paper or a quantitative filter paper, All can realize the object of the present invention;

[0027] d. Immerse the test paper I in the immersion solution II prepared in the step b for ...

Embodiment 2

[0030] Embodiment 2: the preparation method of the mercury ion detection test paper of the present embodiment specifically comprises the following steps:

[0031] a. Dissolve 0.7 g of cadmium reagent in 100 ml of absolute ethanol and shake well to prepare impregnation solution I; the cadmium reagent is p-nitrobenzenediazoaminoazobenzene;

[0032] b. Dissolve 5 ml of arsenic acid in 20 ml of distilled water, then add 20 ml of 40% sodium hydroxide solution, and finally dilute to 100 ml with distilled water to prepare impregnation solution II;

[0033] c. Immerse the filter paper in the impregnation solution I prepared in the step a for 1 minute, take it out and dry it to prepare the test paper I, and store the test paper I in a light-tight dark place. The filter paper can be a qualitative filter paper or a quantitative filter paper, All can realize the object of the present invention;

[0034] d. Immerse the test paper I in the immersion solution II prepared in the step b for 1...

Embodiment 3

[0037] Embodiment 3: the preparation method of the mercury ion detection test paper of the present embodiment specifically comprises the following steps:

[0038] a. Dissolve 0.55 g of cadmium reagent in 100 ml of absolute ethanol and shake well to prepare impregnation solution I; the cadmium reagent is p-nitrobenzenediazoaminoazobenzene;

[0039] b. Dissolve 5 ml of arsenic acid in 20 ml of distilled water, then add 20 ml of 40% sodium hydroxide solution, and finally dilute to 100 ml with distilled water to prepare impregnation solution II;

[0040] c. Immerse the filter paper in the impregnation solution I prepared in the step a for 1 minute, take it out and dry it to prepare the test paper I, and store the test paper I in a light-tight dark place. The filter paper can be a qualitative filter paper or a quantitative filter paper, All can realize the object of the present invention;

[0041] d. Immerse the test paper I in the immersion solution II prepared in the step b for ...

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Abstract

The invention discloses mercury ion test paper as well as a preparation method and a use method thereof. The test paper is prepared by immersing filter paper in an immersion solution, taking out and drying; the immersion solution comprises an immersion solution I prepared by dissolving 0.35-0.7 g of a cadmium reagent in 100 ml of absolute ethanol and uniformly mixing, and an immersion solution II prepared by dissolving 5 ml of arsenic acid in 20 ml of distilled water, adding 20 ml of a 40% sodium hydroxide solution and finally fixing the volume to 100 ml by the distilled water. The test paper is simple to prepare, low in cost, convenient to use, free from environmental pollution, favorable for environmental protection and wide in test range, does not need to be operated by professionals and is especially suitable for quickly detecting the mercury content on site.

Description

technical field [0001] The invention relates to a mercury ion detection technology, in particular to a mercury ion detection test paper using a cadmium reagent as a color developing agent, a preparation method and a use method thereof. Background technique [0002] According to the latest statistics, the current mercury content in water, soil, and atmosphere has tripled compared to years ago. Mercury pollution is extremely harmful to humans. The human body cannot excrete trace amounts of mercury accumulated in the food chain or other ways through its own metabolism. The accumulation of trace amounts of mercury will directly lead to heart, liver, thyroid and other diseases, and even lead to nervous system disorders or chronic mercury poisoning. The use of mercury-containing pesticides, sewage irrigation, and fish farming with mercury-containing wastewater are the main ways for mercury to contaminate food. [0003] Mercury is widely used in industry, which causes serious poll...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 汪生云陈雷
Owner KUNMING BOYIN SCIANDTECH CO LTD
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