VERSATILE SIMULTANEOUS MULTIELEMENT MEASUREMENT SYSTEM WITH COMBINATION OF ICP-MS AND ICP-AES THROUGH OPTICAL-FIBER

A hyphenated system of inductively coupled plasma atomic emission spec trometry (ICP-AES) and inductively coupled plasma mass spectrometry (I CP-MS) combined with aid of optical fiber was developed for versatile simultaneous multielement measurement of the elements from the major t o ultratrace levels. In the present system, the emission signals from the argon ICP equipped for ICP-MS were led through optical fiber to a sequential-type monochromator for ICP-AES measurement. In consequence, the dynamic range of 9 orders of magnitude from a few pg ml(-1) up to ca. 1000 mu g ml(-1) was obtained, which allowed the simultaneous det ermination of a variety of elements in the wide concentration range by ICP-MS and/or ICP-AES. The present system was applied to simultaneous multielement analysis of rock and seawater samples.