Detection agent for determining content of nickel in water

A technology of nickel content and detection agent, which is applied in the field of analysis and detection, can solve problems such as the development and report of nickel content detection agent that have not yet been found, and achieve the effect of low price and easy portability

Inactive Publication Date: 2013-09-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But do not find the development report of...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 measures the preparation of the detection agent of nickel content in water body

[0016] Take by weighing 1.2g sodium citrate, 0.6g potassium hydroxide and 0.1g disodium ethylenediamine tetraacetate respectively, mix well, and grind to get powder I; take by weighing 1.6g ammonium citrate, 0.2g potassium iodide, 0.1g iodine and Mix 0.1g of dimethylglyoxime evenly and pulverize to obtain powder II; weigh 0.5g of powder I, 0.1g of powder II and 0.1g of polyethylene glycol and mix evenly to obtain a detection agent for determining nickel content in water.

Embodiment 2

[0017] Embodiment 2 adopts the detection agent of measuring nickel content in the water body obtained by embodiment 1 of the present invention to measure the nickel concentration in mining and metallurgy wastewater

[0018] In 10ml of certain mining and metallurgy wastewater, add the detection agent prepared in Example 1, shake for 1min, after the detection agent dissolves, use a spectrophotometer to measure the absorbance at a wavelength of 530nm, and substitute it into the nickel standard curve to calculate the nickel concentration. L, consistent with the national standard method (GB / T11906-89) test result of 0.64mg / L, therefore, the detection reagent is accurate and reliable in determining the concentration of nickel in water quality.

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PUM

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Abstract

The invention relates to a detection agent for determining the content of nickel in water. According to the detection agent, firstly, sodium citrate, potassium hydroxide and ethylenediamine tetraacetic acid disodium are weighed according to the mass ratio of 12: 6: 1, are mixed uniformly and are then ground so as to obtain powder I; then, ammonium citrate, potassium iodide, iodine and dimethyl glyoxime are weighed according to the mass ratio of 16: 2: 1: 1, are mixed uniformly and are then ground so as to obtain powder II; and finally, the powder I, the powder II and polyethylene glycol are weighed according to the mass ratio of 5: 1: 1 and are mixed uniformly, thereby obtaining the detection agent for determining the content of nickel in water. During use, 0.7g of the detection agent is poured into 10ml of a water sample to be determined, shaking is carried out for 1 min so as to dissolve the detection agent, and a colorimeter or spectrophotometer is utilized for measuring. According to the detection agent disclosed by the invention, the carrying is convenient, the storage is easy, any reagent is not required for being added during use, and the determination results are accurate, so that the detection agent is applicable to the on-site detection on the content of nickel in surface water, seawater and industrial wastewater.

Description

technical field [0001] The invention relates to a detection agent for measuring nickel content in water, belonging to the technical field of analysis and detection. Background technique [0002] Nickel is a heavy metal. Heavy metals in water and food are hard to degrade, poor in mobility, potentially harmful, and long-term irreversible. The existence of heavy metals in the environment will seriously affect the output and quality of drinking water and agricultural and animal husbandry products. More importantly, it It can enter the human body through the biomagnification of the food chain and threaten human health. In addition to mining, battery production, non-ferrous smelting, catalysts, leather, dyes, pesticides and other fine chemical enterprises are accompanied by a large amount of heavy metal emissions. In the middle of the 20th century, bone pain caused by cadmium pollution in Toyama Prefecture, Japan, and methylmercury-contaminated wheat in Iraq caused more than 80,...

Claims

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Application Information

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IPC IPC(8): G01N21/25G01N21/31
Inventor 郜洪文范亚陈玲张亚雷袁园
Owner TONGJI UNIV
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