感應耦合電漿質譜術之建立與應用 (II): 東南亞大陸地殼的化學組成
Date Issued
2002
Date
2002
Author(s)
DOI
902116M002013
Abstract
This project is proposed as a three-year project to develop the quadrupole
ICP-MS, i.e., a new Agilent (originally HP) 7500s, has been installed in this department
for potential applications in geosciences and environmental sciences. In the first year, the analytical procedures which would enable the ICP-MS to precisely and
simultaneously determine about 40 trace elements in rock samples has been established.
The procedures includes: (1) digestion of rock samples using distilled HF+HNO3 in
screw-top teflon beakers in the clean room, (2) digestion of USGS and other rock
standards through the same processes and then using them as calibration references,
and (3) using certain internal standards during the measurements to monitor the
sensitivity shift of the machine. Consequently, the ICP-MS method developed marks
with: (1) simple sample preparation, (2) straightforward data reduction, and (3) high
analytical precision, and thus can be applicable to trace element determinations of
common rock samples.
Subjects
ICP-MS
Trace element determinations
Publisher
臺北市：國立臺灣大學地質科學系暨研究所
Type
report
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