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Adsorption detection method of hydroxyapatite to metal nickel ions

A technology of hydroxyapatite and detection method, which is applied in the direction of measuring device, color/spectral characteristic measurement, material analysis through optical means, etc., which can solve the problem of inaccurate detection

Inactive Publication Date: 2018-08-24
DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST 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 nickel ions mainly include atomic spectrophotometry, but atomic spectrophotometer is easily interfered by heterometallic ions, and the detection is inaccurate. The detection of nickel enrichment will greatly improve the detection accuracy.

Method used

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  • Adsorption detection method of hydroxyapatite to metal nickel ions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The adsorption detection method of hydroxyapatite to metal nickel ions specifically comprises the following steps:

[0017] 1. Accurately measure 50mg of nickel nitrate, dissolve them in 1000mL volumetric flasks respectively, use them as standard nickel ion solutions, and use an atomic spectrophotometer to detect and draw a standard curve.

[0018] 2. Accurately weigh 0.200g of hydroxyapatite sample for later use.

[0019] 3. Take 10mL of the above-mentioned standard nickel ion solution, dilute it 50 times, take 20mL of the diluted nickel solution and put it in a 100mL beaker for later use.

[0020] 4. Add hydroxyapatite to 100 mL of standard nickel ion solution, stir and sonicate for 2 hours, filter and dry to obtain nickel ion-enriched apatite.

[0021] 5. Prepare 0.5mol / L HCl solution for use.

[0022] 6. Dissolve the apatite with adsorbed nickel ions in 10 mL of hydrochloric acid solution, sonicate for 2 hours, and centrifuge to take the supernatant for detection....

Embodiment 2

[0027] The steps of the hydroxyapatite adsorption detection method for metal nickel ions described in this embodiment are all the same as in Example 1, and the different technical parameters are:

[0028] 1. Accurately measure 275mg of nickel nitrate in step 1;

[0029] 2. Accurately weigh 0.35g of hydroxyapatite in step 2;

[0030] 3. In step 3, take 20 mL of the above-mentioned standard nickel ion solution, dilute it 75 times, and take 35 mL of the diluted nickel solution and place it in a 100 mL beaker for later use;

[0031] 4. Prepare 0.75mol / L HCl solution for use.

[0032] Example 2

[0033] The steps of the hydroxyapatite adsorption detection method for metal nickel ions described in this embodiment are all the same as in Example 1, and the different technical parameters are:

[0034] 1. Accurately measure 500mg of nickel nitrate in step 1;

[0035] 2. Accurately weigh 0.500g of hydroxyapatite in step 2;

[0036] 3. In step 3, take 30 mL of the above-mentioned sta...

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Abstract

The invention relates to the technical field of water body detection and especially relates to an adsorption detection method of hydroxyapatite to metal nickel ions. In the method, a metal ion Ca<2+>in the hydroxyapatite can be substituted by metal ions having similar atomic size in order to generate apatite containing hetero-atoms; when the metal ion is Ni<2+>, the metal ion can replace the Ca<2+> and form bonds with oxygen on the surface of the material, thus forming hydroxyapatite containing nickel. The nickel in the hydroxyapatite, after being dissolved in hydrochloric acid, can be dissolved out. The raw material for enriching the Ni<2+> has extensive sources and low cost, has significant effect of enriching Ni<2+> and is high in recycling efficiency on the Ni<2+> after treatment withhydrochloric acid.

Description

technical field [0001] The invention relates to the technical field of water body detection, in particular to a method for detecting the adsorption of metal nickel ions by hydroxyapatite. Background technique [0002] Hydroxyapatite (HAP) is the main inorganic component of vertebrate bones and teeth. The content of hydroxyapatite in human tooth enamel is about 96wt%, and that in bones is also about 69wt%. At present, the detection methods of nickel ions mainly include atomic spectrophotometry, but atomic spectrophotometry is easily interfered by heterometallic ions, and the detection is inaccurate. Enriching nickel for detection will greatly improve the detection accuracy. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the object of the present invention is to provide a method for detecting the adsorption of hydroxyapatite on nickel metal ions. Using hydroxyapatite to adsorb nickel ions to generate nickel-containing ...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N21/01
CPCG01N21/01G01N21/31
Inventor 池明祝玉洪李鹏廷姜大川张润德谭毅
Owner DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD
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