Trace amount gold separated enriching lumination detection device and method

A technology for luminescence detection, separation and enrichment, which is applied in the direction of chemiluminescence/bioluminescence, and analysis by making materials undergo chemical reactions, which can solve the problems of complex particle surface shape, difficulty in automatic elution, and reduced sensitivity of gold determination. Achieve the effect of reducing test cost, low detection limit and fast analysis speed

Inactive Publication Date: 2005-09-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Foam plastics or anion exchange resins have a specific adsorption effect on gold, but the adsorption of gold on porous foam plastics occurs on the pore surface of foam plastics, while the adsorption of gold on granular anion exchange resins occurs on the surface of resin particles. When light is emitte...

Method used

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  • Trace amount gold separated enriching lumination detection device and method

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Comparison scheme
Effect test

Embodiment 1

[0013] On a rectangular glass or polymer transparent material 1, engrave a groove 6 with a width of 1.5mm and a depth of 1mm, and a curved groove 2 with a total length of 100mm. Both the inlet 3 and the outlet 4 are led out of the dark box of the photomultiplier tube through a hose with a diameter of 1.5 mm. Groove 2 is covered with anion exchange membrane 5, and is pressed with gland 6. Fasten the anion exchange membrane 5 and the gland 6 on the transparent material 1 with screws. And place the device in the dark box where the photomultiplier tube is placed, align the part of the bottom surface of the transparent material 1 with the groove 2 on the photosensitive window of the photomultiplier tube, close the dark box to prevent stray light from entering, and rinse the device with acid and distilled water Ready to use.

Embodiment 2

[0015] Weigh 10.00g of gold-bearing ore sample into a porcelain boat, place the porcelain boat in a muffle furnace, slowly raise the temperature to 650°C, burn for 1 hour, take it out and cool slowly, and transfer the burnt ore sample to Wet a 250mL beaker with distilled water, add 10mL of concentrated HCl, add 30mL of aqua regia after heating for 20 minutes, cover with a watch glass and heat to dissolve for 2 hours. After the acid-soluble matter in the ore sample is completely dissolved, steam until it becomes wet salt, add 10 mL of 1 mol / L hydrochloric acid, dilute it in a 100 mL volumetric flask, and shake well. After standing for clarification, take 20mL of the supernatant, flow through the flow channel composed of groove 2 and anion exchange membrane 5 at a flow rate of less than 11.2mL / min, and then inject 20mL of hydrochloric acid with a concentration of 0.1mol / L and 30mL of distilled water to wash the channel to neutral , and then injected with a pH value of 12 and a c...

Embodiment 3

[0017] Weigh 5.000g of gold ore sample into a porcelain boat, place the porcelain boat in a muffle furnace, heat up from room temperature to 650°C, burn for 1 hour, take it out and cool slowly. Transfer the burnt gold ore sample to a 250mL beaker, moisten it with distilled water, add 10mL concentrated HCl, heat, add 30mL aqua regia after 20min, cover with a watch glass and heat to dissolve for 2 hours. After the acid-soluble substance in the ore sample is completely dissolved, steam until it becomes wet salt, add 15 mL of 1 mol / L hydrochloric acid, dilute it in a 100 mL volumetric flask, and shake well. Place it for clarification, and the supernatant was measured with the IFFL-DD flow injection chemiluminescence analyzer and the matching multifunctional chemiluminescence detector produced by Xi'an Ruimai Electronics Co., Ltd. The assay method is: put the device of the present invention into a multifunctional chemiluminescence detector, connect the peristaltic pump to the inflo...

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Abstract

The invention relates to a device and method for quantitative analyzing the trace by the chemiluminescence in the gold prospecting, gold production, sea water analysis. The steps: a) setting a beard on the transparent material, an inlet and outlet on the lateral surface; b) covering the amberplex and gland on the beard; c) putting the device in the booth of the multiplier phototube; d) separating and gathering the gold through the adsorption of the amberplex. The device also can be used as chemiluminescence measuring light source, and the amberplex can be used repeatedly.

Description

technical field [0001] The invention relates to a device and a method for quickly quantitatively analyzing trace and ultra-trace gold by using chemiluminescence in gold prospecting, gold production and seawater analysis. Background technique [0002] Chemiluminescence analysis is a highly sensitive analytical technique that has been widely used in trace gold analysis. However, when using chemiluminescence to analyze trace gold, due to the poor selectivity of the method, complex separation and enrichment work is required, which limits the application of the method. Lu Jiuru, Zhang Xinrong, etc. disclosed in <Analytical Chemistry.> 1992, 20 (1): 104-106 "Research on the Determination of Trace Amount of Gold by Chemiluminescence on the Surface of Foamed Plastics". Gold on plastic realizes the integration of separation, enrichment and determination of gold. Li Junfeng, Wang Hongyan, etc. in <Rock and Mine Test.> 2002, 21 (3): 175-178 "Research on Chemiluminescent B...

Claims

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Application Information

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IPC IPC(8): G01N21/76
Inventor 李俊锋王洪艳邹海峰卢刚甘树才
Owner JILIN UNIV
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