Abstract − Analytical Sciences, 35(12), 1295 (2019).
Automatic Preparation of Calibrating Solutions for Quantitative Analysis by ICP-MS
Yanbei ZHU
National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
An automatic system was developed to prepare calibrating solutions for elemental measurements by inductively coupled plasma mass spectrometry (ICP-MS). The flow-rates of diluting solution, internal standard solution, and initial elementals solution were monitored with a single ultrasonic flow sensor. Multiple calibrating solutions prepared by the present automatic system were analyzed by ICP-MS, whose results provided a correlation coefficient better than 0.999 for calibration curves. The results for multi-elements in a river-water certified reference material (NMIJ CRM 7202-b) agreed with the certified values.
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