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 |