Chapter Contents | Key Requirements | Scope of Application |
---|---|---|
1 Scope | Description of the determination method and scope of application | Gold alloy jewelry with a gold content of not less than 990.00‰ |
4 Principle | Laser Ablation-Inductively Coupled Plasma Mass Spectrometry | Determination of Multi-element Content |
6 Instruments and Equipment | Laser Ablation-ICP-MS System | Precise Measurement of Multiple Metal Elements |
9 Experimental Data Processing | Average Calculation and Detection Limit Analysis | Ensure Data Accuracy |
With the increasing demand for precious metal purity and elemental composition testing in the jewelry industry, traditional chemical analysis methods are gradually being replaced by efficient and sensitive instrumental analysis techniques. Laser Ablation-Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) is a high-precision microanalysis technique that has been widely used in the field of gold alloy jewelry testing due to its non-destructive, multi-element simultaneous determination and high sensitivity.
Laser Ablation System: High-energy laser pulses act on the sample surface to produce vaporized particles and introduce them into the mass spectrometer for analysis.
Inductively Coupled Plasma Mass Spectrometry (ICP-MS): A technology that uses high-temperature inductively coupled plasma as an ion source and combines it with a mass spectrometer to perform simultaneous multi-element detection.
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