GB 9969.1-1998
Replaced
T/JSGA 008-2024
Active
Group standards
T/JSGA 008-2024 Determination of High Concentration Precious Metals in Jewelry: Gold, Silver, Platinum, and Palladium by Glow Discharge Mass Spectrometry (Subtraction Method)
T/JSGA 008-2024 Determination of High Concentration Precious Metals in Jewelry: Gold, Silver, Platinum, and Palladium by Glow Discharge Mass Spectrometry (Subtraction Method)
Price:
$ 20.00
Basic Information
Standard Code:
T/JSGA 008-2024
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Technical product documentation
Publish Date:
2024-04-02
Implement Date:
2024-04-09
Scope
Main technical content: A uniform sample is used as the cathode of glow discharge. Under the impact of argon ions, the surface atoms of the sample are stripped off (cathode sputtering) and enter the negative glow zone, where they are converted into charged ions through electron collisions and Penning collisions. Subsequently, the isotope ions of the elements to be tested are introduced into the mass spectrometer, and the intensity of the isotope ion peaks is recorded. The content of the impurity elements to be tested is calculated based on the relative sensitivity factor, and the content of the matrix elements gold, silver, platinum, and palladium is calculated by subtraction method
Development Information
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Active