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Standard pattern of emission spectrum of pure silver, and preparation method

A technology of emission spectrum and standard sample, which is applied in the field of pure silver emission spectrum standard sample and its preparation, can solve the problem that the standard sample for pure silver spectral analysis cannot meet the requirements of national standards, etc.

Active Publication Date: 2009-06-03
CHINA BANKNOTE PRINTING & MINTING
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  • Description
  • Claims
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Problems solved by technology

Due to the revision of the national standard, the original standard sample for pure silver spectral analysis can no longer meet the requirements of the national standard

Method used

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  • Standard pattern of emission spectrum of pure silver, and preparation method
  • Standard pattern of emission spectrum of pure silver, and preparation method
  • Standard pattern of emission spectrum of pure silver, and preparation method

Examples

Experimental program
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Effect test

preparation example Construction

[0102] The preparation method of above-mentioned sample comprises the steps:

[0103] 1): Material selection: use pure silver with a silver content of 99.995% as the silver matrix, and select pure metals with a content of at least 99.99% for other metals;

[0104] 2), ingredients: ingredients in proportion;

[0105] 3) Melting and casting: Use a 50KW intermediate frequency induction furnace. After the furnace body and carbon crucible are preheated, add pure silver raw materials and melt them first, then add other raw materials into the carbon crucible at the same time, and wait for the melting to reach a casting temperature of 1200°C Remove quickly after using as Figure 11 , Figure 12 The combined casting mold shown is cast to obtain the corresponding standard sample of pure silver emission spectrum.

[0106] According to the requirements of GB / T1500.5-1994 "General Rules for Chemical Composition Standard Sample Technology", the uniformity of the sample is checked by the ...

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Abstract

A standard sample of pure Ag emitted spectrum is compose of 0.00045 - 0.018 Au, 0.00010 - 0.041 Cu, 0.00055 - 0.011 Fe, 0.00012 -0.042 Pb, 0.00045 - 0.0090 Sb, 0.00040 - 0.0165 Bi, 0.0005 - 0.0082 Pd, 0.0003 - 0.0081 Se, 0.0004 - 0.0081 Te, 0.00045 - 0.0080 Zn and Ag base as allowance by wt %. The said Ag base is pure Ag containing 99.995 % Ag content and the other metals are pure metals containing 99.99 % metal content.

Description

Technical field: [0001] The invention relates to a standard sample, in particular to a pure silver emission spectrum standard sample and a preparation method thereof. Background technique: [0002] According to the development of analysis technology at home and abroad, the conventional analysis of batch products is the most effective method when using emission spectroscopy, and the development of physical standard samples for separation is a key issue in the field of silver production. The standard sample for pure silver spectral analysis is an indispensable standard quality for the analysis of silver smelting products. With the liberalization of the gold and silver market in our country, the number of gold and silver smelters across the country is increasing day by day. Except for some powerful smelters with direct-reading spectrometers, most of the manufacturers use the spectroscopic method to analyze the composition of pure silver. polarized. Since the national standard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/00
Inventor 王自森陈杰
Owner CHINA BANKNOTE PRINTING & MINTING
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