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Detection method for arsenic, antimony and bismuth in silver concentrate

A detection method and technology of silver concentrate, applied in the field of detection, can solve the problems of narrow linear range and affecting the accuracy of final data, etc.

Inactive Publication Date: 2019-01-08
天津华勘商品检验有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the linear range of the atomic fluorescence spectrometer is narrow, and the content of antimony and bismuth in the silver concentrate is high, so a high dilution factor is required for measurement, which directly affects the accuracy of the final data
There is no national or industry standard for the determination of antimony content

Method used

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  • Detection method for arsenic, antimony and bismuth in silver concentrate
  • Detection method for arsenic, antimony and bismuth in silver concentrate
  • Detection method for arsenic, antimony and bismuth in silver concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of detection method of arsenic, antimony, bismuth element in silver concentrate, its step is:

[0031] (1) Sample treatment: Weigh 0.1000g silver concentrate sample and place it in a beaker, slowly add nitric acid into the beaker, heat and dissolve the sample at 100°C for 3min, add 2.50mL hydrochloric acid, 2.50mL hydrofluoric acid, 2.50mL perchloric acid, Heat at 150°C and emit perchloric acid fumes until 1ml of the solution remains, remove the beaker to cool, add 10.00mL of hydrochloric acid, rinse the wall of the beaker with water, heat to dissolve the salt, remove and cool, transfer the test solution into a 100mL volumetric flask, and dilute to volume with water. Shake well to be tested;

[0032] (2) Draw the standard curve solution configuration: take 0.00, 0.10, 1.00, 2.00, 5.00mL antimony standard stock solution; take 0.00, 0.50, 1.00, 5.00, 10.00mL arsenic, bismuth standard working solution in five 100mL volumetric flasks Add 10.00ml of hydrochloric acid...

Embodiment 2

[0043] According to the above experimental method, weigh and dissolve 10 silver concentrate samples, measure the arsenic, antimony, and bismuth elements, calculate the average value and relative standard deviation, and use the test results of other laboratories for comparative analysis. As in Table 4.

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Abstract

The invention relates to a detection method for arsenic, antimony and bismuth in silver concentrate. The method comprises the following steps: (1) sample treatment; (2) drawing a standard curve and preparing a solution; (3) determination of an inductively coupled plasma emission spectrometer; (4) spectral line selection; and (5) drawing the standard curve and determining a detection limit. The method detects arsenic, antimony and bismuth in silver concentrate by means of the inductively coupled plasma emission spectrometer, so that a perfect, accurate and quick detection method is formed, thereby laying a solid foundation for exploring detection of other elements in silver concentrate and silver concentrate similar products by means of the inductively coupled plasma emission spectrometer in the future.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for detecting arsenic, antimony and bismuth elements in silver concentrate. Background technique [0002] The determination of bismuth content mainly adopts atomic fluorescence spectrometry. However, the linear range of the atomic fluorescence spectrometer is narrow, and the content of antimony and bismuth in the silver concentrate is high, which requires a high dilution factor to measure, which directly affects the accuracy of the final data. There is no national or industry standard for the determination of antimony content. Therefore, it is very necessary to study more accurate and concise methods for detecting antimony and bismuth elements in silver concentrates. It can not only fill the gap that there is no detection method for antimony elements in silver concentrates, but also avoid the shortcomings of atomic fluorescence spectrometers, and at the same time incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
CPCG01N21/73
Inventor 卞大勇刘淑香姚旭左良赵海珍高蕾张文武于建华
Owner 天津华勘商品检验有限公司