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Kit and detection method for determining copper ion concentration in water environment

A detection method and technology of copper ions, which are applied in the measurement of color/spectral characteristics, material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem that waste liquid cannot be recycled and detected. Narrow scope, complex processing and other problems, to achieve the effect of easy implementation, short detection time and high extraction rate

Inactive Publication Date: 2012-12-12
中国科学院唐山高新技术研究与转化中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, there are also studies on the use of colorimetric method to detect copper in water quality, which requires many kinds of reagents, cumbersome operation, and narrow detection range. The waste liquid after detection cannot be recycled and easily causes secondary pollution.
All the above methods require professional and technical personnel to operate and the processing is complicated. Some detection methods are difficult to popularize in most enterprises and ordinary households. Therefore, a fast and convenient detection technology for copper ions in water has become a research focus.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The composition and preparation method of the kit for measuring the concentration of copper ions in the water environment are as follows.

[0020] The test kit for measuring the concentration of copper ions in the water environment is placed in the box body: B 1 Solution, colorimetric tube, glass graduated pipette, copper standard color scale solution, and copper standard color scale or copper standard color card.

[0021] This kit is made by the following method:

[0022] One, B 1 Solution preparation:

[0023] 3-bromo-5-tert-butyl salicylaldoxime is used as the developer, and benzene is used as the organic phase. Weigh 1g of 3-bromo-5-tert-butyl salicylaldoxime, dissolve it in 100ml of organic phase, and transfer it to a 1L volumetric flask, then add the organic phase to make the volume to 1L, to obtain B 1 solution.

[0024] 2. Preparation of copper standard color scale:

[0025] (1) The preparation concentrations are: 1, 5, 10, 20, 30, 40, 50, 60...

Embodiment 2

[0034] Embodiment 2: The composition and preparation method of the kit for measuring the concentration of copper ions in the water environment are as follows.

[0035] This kit is made by the following method:

[0036] One, B 1 Solution preparation:

[0037] 3-bromo-5-tert-butyl salicylaldoxime is used as the developer, and toluene is used as the organic phase. Weigh 3g of 3-bromo-5-tert-butyl salicylaldoxime, dissolve it in 100ml of organic phase, and transfer it to a 1L volumetric flask, then add the organic phase to make the volume to 1L, to obtain B 1 solution.

[0038] 2. Preparation of copper standard color scale:

[0039] (1) The prepared concentrations are: 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300 mg / L;

[0040] (2) Take 6ml of each concentration solution in step (1) and place them in 50ml colorimetric tubes, add 3ml of B 1 solution, stoppered, and shaken by hand for 4 minutes to thoroughly mix the aqueous and organic phases, then let stand. The o...

Embodiment 3

[0048] Embodiment 3: The composition and preparation method of the kit for measuring the concentration of copper ions in the water environment are as follows.

[0049] This kit is made by the following method:

[0050] One, B 1 Solution preparation:

[0051] 3-bromo-5-tert-butyl salicylaldoxime is used as a developer, and trichlorotoluene is used as an organic phase. Weigh 10g of 3-bromo-5-tert-butyl salicylaldoxime, dissolve it in 100ml of organic phase, and transfer it to a 1L volumetric flask, then add the organic phase to make the volume to 1L, to obtain B 1 solution.

[0052] 2. Preparation of copper standard color scale:

[0053] (1) The preparation concentrations are: 1, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300mg / L;

[0054] (2) Take 45ml of each concentration solution in step (1) and place them in 50ml colorimetric tubes, add 3ml of B 1 solution, stoppered, and shaken by hand for 5 minutes to thoroughly mix the aqueous and organic phases, then let stand...

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Abstract

The invention discloses a kit and a detection method for determining the copper ion concentration in a water environment. The kit comprises a B1 solution, a color comparison tube, a glass graduated pipette, a copper standard color scale solution, and a copper standard color scale or copper standard color comparison card. The kit is advantage in simple preparation method, low cost, good B1 solution stability, high extraction rate, low detection time, no requirement on other experimental equipment and professional and technical personnel, easy implementation, convenient carrying, and suitability for on-site detection of visual colorimetry. Main reagents in the kit are provided in forms of working fluids, and are packaged independently. The reagents are easy to preserve, and are suitable for on-site applications. According to the detection method, a reaction is fast. Under room temperature, only 7-10 minutes are needed from sample treatment to detection result acquiring. All organic phases of the method are not soluble in water, such that waste liquids can be separated and recovered after detection, and can be processed and reused. Therefore, no secondary pollution is caused, and requirements of modern detection technologies are satisfied.

Description

technical field [0001] The invention relates to an analysis kit and a detection method, in particular to a kit and a detection method for measuring the concentration of copper ions in a water environment. Background technique [0002] Copper element is a kind of metal element in water. A small amount of copper ions is beneficial to human body and organisms, but excessive copper ions will cause great negative effects on human body and organisms in water. All countries in the world strictly control the discharge of wastewater containing copper ions. China stipulates that the maximum allowable discharge concentration of copper and its compounds in industrial wastewater is 1.0mg / L (calculated as copper); the maximum allowable concentration of surface water is 1.0mg / L; fishery water is 0.01mg / L; the concentration of copper in drinking water Shall not exceed 1.0mg / L. The Soviet Union stipulated that the maximum allowable concentration of copper in coastal seawater was 0.1mg / L. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/33
Inventor 惠建斌耿叶静张星赵媛媛刘静柯春林杜志军郑文婧
Owner 中国科学院唐山高新技术研究与转化中心
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