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Calcium

Analyt: Calcium
Matrix: Serum
Measuring Method: Magnetic sector field ICP-ID/MS
Standard: CaCO₃ NIST 915b
Internal Standard: Isotopenangereichertes Ca-42
Sample Processing: Samples are spiked gravimetrically with internal standard and diluted approx. 100-fold with 4mM nitric acid.
Measurement: Measurement at m/z 43.955 and m/z 41.959 in medium resolution mode