Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 395, Issue 5, Pages 1471-1480Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-009-3061-9
Keywords
Laser ablation; ICP-MS; Calibration; Copper; Zinc; Metal
Funding
- Swiss Federal Science Foundation [200020-111825/1]
Ask authors/readers for more resources
Solution-doped metal powder pellets as well as aspirated liquids were used as calibration samples to analyze pure copper and zinc certified reference materials (CRMs) by femtosecond laser ablation ICP-MS. It was demonstrated that calibration by copper pellets resulted in relative deviations up to 20%, whereas fs-LA-ICP-MS among copper-based CRMs led to inaccuracies in the same range unless nominal mass fractions were chosen to be <3 mg/kg. Calibration by zinc pellets generally provided better accuracy. Depending on the analyte considered, deviations below 10% were obtained even for mass fractions close to the limit of quantification. Our data, therefore, indicate solution-doped metal powder pellets to be suitable as calibration samples for fs-LA-ICP-MS of metals. Furthermore, the utilization of liquid standards for calibration was found to result in stronger deviations of up to 50% for both copper and zinc samples which, in addition, turned out to be dependent on the plasma conditions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available