Abstract
The concentrations of major (Na, K, Ca, Mg), minor (Cu, Fe) and trace (Li, Sr, Ba) elements in untreated, undiluted human body fluids (serum, urine, saliva, cerebrospinal fiuid) are determined. The sample volume is 110 μl. Micro-standard addition procedures and manual background correction are used to minimize matrix interferences. The RSD ranged from 3.1. to 8.6%. Accuracy was evaluated with NIES Candidate Reference Material freeze-dried human serum and NBS SRM-2670 freeze-dried urine.
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