Zhu Yanbei
National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology.
Anal Sci. 2019 Dec 10;35(12):1295-1298. doi: 10.2116/analsci.19C010. Epub 2019 Nov 22.
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.
开发了一种自动系统，用于制备用于电感耦合等离子体质谱法（ICP-MS）元素测量的校准溶液。用单个超声流量传感器监测稀释溶液、内标溶液和初始元素溶液的流速。由本自动系统制备的多种校准溶液通过ICP-MS进行分析，其结果为校准曲线提供了优于0.999的相关系数。河水标准参考物质（NMIJ CRM 7202-b）中多元素的测量结果与认证值一致。
