14-07-2023 дата публикации
Номер: CN116429808A
Автор:
WANG JINZHUAN,
LI BEI,
XIE YIBEI,
ZHANG JINWEN,
FANG TING,
ZHOU JUNGUI,
JIN XUGUANG,
CAI WEI,
WANG XINLEI,
CHEN DONG,
ZHANG FAN,
WANG LIANG
Принадлежит:
The invention relates to the technical field of element content detection, in particular to a method for determining the content of gold and other elements in a gold alloy product, which comprises the following steps: 1) dissolving a sample, adding hydrochloric acid, ethylenediamine tetraacetic acid disodium salt, tartaric acid, oxalic acid and perchloric acid, and preparing a stable sample solution; 2) preparing a calibration solution composed of main elements; 3) determining the known calibration samples of gold, silver, copper, zinc, nickel, iron, manganese and chromium with different concentrations, and determining the test conditions of the elements; and 4) testing the calibration solution sample, constructing the relationship between the X-ray fluorescence spectrum intensity and the content of gold, silver, copper, zinc, nickel, iron, manganese and chromium in the calibration work curve, and testing the sample to be tested by adopting the calibration curve to obtain the content of ...
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