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Quantitative detection method for low-purity gold

A detection method and gold quantification technology, applied in the field of jewelry K gold element content detection, can solve the problem that the detection method is not applicable

Active Publication Date: 2022-01-07
国家珠宝检测中心(广东)有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved in the embodiments of the present application is that when solving the existing detection method for the gold content of gold alloy jewelry using GB / T 9288-2019, the detection range of the detection method is 333.0‰-999.5‰, and the gold content of the metal to be tested When the content is lower than 333.0‰, the detection method is not applicable

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  • Quantitative detection method for low-purity gold
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Embodiment Construction

[0096] The following will clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0097] K gold (or karat gold) is an alloy made of gold and other metals. K gold jewelry is characterized by less gold consumption, low cost, and can be formulated into various colors, and has increased hardness, which is not easy to deform and wear. K gold is divided into 24K gold, 22K gold, 18K gold and 9K gold according to the gold content.

[0098] With the continuous development of the precious metal industry, people's demand for K gold jewelry continues to increase, and the demand for testing the gold content in K...

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Abstract

The invention discloses a quantitative detection method for low-purity gold, which is improved on the basis of a national standard fire assaying method. By adding standard gold into a sample to be detected, the gold content of the sample to be detected is increased, so that the gold content of the metal to be detected meets the detection range of the detection method. Furthermore, quantitative detection of low-purity gold can be carried out by using a GB / T 9288-2019 gold alloy jewelry gold content detection method.

Description

technical field [0001] The present application relates to the technical field of detection of K-gold element content in jewelry, in particular to a quantitative detection method for low-purity gold. Background technique [0002] K gold (or karat gold) is an alloy made of gold and other metals. K gold jewelry is characterized by less gold consumption, low cost, and can be formulated into various colors, and has increased hardness, which is not easy to deform and wear. According to the current national standard GB 11887, gold alloy jewelry can be divided into pure gold, 22K gold, 18K gold, 14K gold and 9K gold according to the purity. [0003] With the continuous development of the precious metal industry, people's demand for K gold jewelry continues to increase, and the demand for testing the gold content in K gold jewelry is also increasing. The current detection method for gold content in gold alloy jewelry is GB / T 9288-2019 When the detection range of this detection meth...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04G01N23/22
CPCG01N5/04G01N23/22
Inventor 林哲琼梁健辉李嘉萍韦健轩
Owner 国家珠宝检测中心(广东)有限责任公司