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Copper ion test paper and method for preparing same

A copper ion detection and test paper technology, which is applied in the direction of chemical reaction of materials for analysis, and material analysis by observing the impact on chemical indicators, can solve problems such as corrosiveness, long detection time, and unfavorable environmental protection. Achieve the effect of not polluting the environment, wide testing range and simple production

Inactive Publication Date: 2009-09-30
KUNMING BOYIN SCIANDTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection methods of copper content include atomic absorption spectrometry, atomic absorption spectrometry, iodometric method, spectrophotometry, etc. These detection methods not only require laboratory conditions, but also have a long detection time and high cost, which is not conducive to Realize on-site rapid detection
[0006] The Chinese invention patent of "a copper detection test paper and its preparation method" discloses a method for quickly and simply detecting copper content with copper test paper. Its patent number is 03119105.3 and its publication number is CN1456876. Zinc soluble salts that are easy to pollute the environment, a large amount of use is not conducive to environmental protection

Method used

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  • Copper ion test paper and method for preparing same

Examples

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Embodiment 1

[0025] Such as figure 1 As shown, a copper ion detection test paper includes a substrate 1 and a color-developing test paper 2 fixed on the substrate 1. The substrate 1 is a thin sheet made of PVC plastic, and the color-developing test paper 2 is a quantitative filter paper soaked in the soaking solution. Take it out, dry it at room temperature and make it. The impregnating liquid components are composed of analytically pure sodium diethyldithiocarbamate 0.07%, potassium sodium tartrate 5.7%, soluble starch 0.036% and distilled water 94.194% by weight percentage.

[0026] The preparation method of copper ion detection test paper of the present embodiment comprises the steps:

[0027] Step 1. Prepare the impregnating solution, dissolve 0.07 g of sodium diethyldithiocarbamate into 20 ml of distilled water, and mix uniformly to obtain solution 1, dissolve 5.7 g of sodium potassium tartrate into 20 ml of distilled water, and mix uniformly to obtain solution 2 1. Heat 0.036 g of s...

Embodiment 2

[0031] Such as figure 1 As shown, a copper ion detection test paper includes a substrate 1 and a color-developing test paper 2 fixed on the substrate 1. The substrate 1 is a thin sheet made of PVC plastic, and the color-developing test paper 2 is a qualitative filter paper soaked in the soaking solution. Take it out and dry it at room temperature. The impregnating solution is composed of 1.4% sodium diethyldithiocarbamate, 11.4% potassium sodium tartrate, 0.71% soluble starch and 86.49% distilled water by weight percentage.

[0032] The preparation method of copper ion detection test paper of the present embodiment comprises the steps:

[0033] Step 1, prepare impregnating solution, dissolve 1.4 grams of sodium diethyldithiocarbamate into 20 milliliters of distilled water, mix uniformly to obtain solution 1, dissolve 11.4 grams of sodium potassium tartrate into 20 milliliters of distilled water, and uniformly mix to obtain solution 2 1. Heat 0.71 g of soluble starch into 20 m...

Embodiment 3

[0037] Such as figure 1 It is shown that a copper ion detection test paper includes a substrate 1 and a color-developing test paper 2 fixed on the substrate 1. The substrate 1 is a thin sheet made of PET plastic, and the color-developing test paper 2 is quantitative filter paper soaked in the soaking solution. Take it out, dry it at room temperature, and make it. The impregnating solution is composed of 0.5% sodium diethyldithiocarbamate, 8% potassium sodium tartrate, 0.2% soluble starch and 91.3% distilled water by weight percentage.

[0038] The preparation method of copper ion detection test paper of the present embodiment comprises the steps:

[0039] Step 1. Prepare the impregnating solution. Dissolve 0.5 g of sodium diethyldithiocarbamate in 20 ml of distilled water and mix uniformly to obtain solution 1. Dissolve 8.0 g of sodium potassium tartrate into 20 ml of distilled water and mix uniformly to obtain solution 2. , dissolve 0.2 g of soluble starch into 20 ml of dist...

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Abstract

The invention discloses a copper ion test paper, which comprises a substrate (1) and chromogenic test paper (2) fixed on the substrate (1), and is characterized in that the chromogenic test paper (2) is prepared by steeping filter paper in a steeping fluid, taking out the filter paper from the steeping fluid and drying the filter paper, wherein the steeping fluid consists of the following components by weight: 0.07 to 1.4 percent of sodium diethyl dithiocarbamate, 5.7 to 11.4 percent potassium sodium tartrate, 0.036 to 0.71 percent of soluble starch, and 86.49 to 94.194 percent of distilled water. The invention also provides a method for preparing the copper ion test paper. The test paper has the advantages of simple fabrication, low cost, convenient use, no pollution to the environment, and favorability for environmental protection; and besides, the test paper has wide test range, is not required to be operated by a professional, and is particularly applicable to quick field test of copper content.

Description

technical field [0001] The invention relates to a copper ion detection test paper and a preparation method thereof, in particular to a copper ion detection test paper using sodium diethyldithiocarbamate as a color developing agent and a preparation method thereof. Background technique [0002] Copper is an essential trace element for life, and plays an important role in the normal physiological and biochemical reactions in the living body. However, copper is also a heavy metal, and excessive copper is harmful to humans, animals, and plants. [0003] Copper mining, electrolytic copper, electroplating, chemical industry, printing and dyeing and other industrial waste water mostly contain copper, and the pest control and seed disinfectants used in agriculture also contain copper. When the water source is polluted by such waste water, there may be trace amounts of copper in the water. copper. If the copper content in water exceeds 1.5 mg / L, there will be obvious metallic taste,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 汪生云陈雷
Owner KUNMING BOYIN SCIANDTECH CO LTD
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