Uncertainty Evaluation for the Determination Results of Antimony in Groundwater Samples by Inductively Coupled Plasma-Mass Spectrometry

DAI A-fang; LU Li-qiang; PAN He; WANG Su-ming; WANG Ya-ping; XU Chun-xue; YUAN Jian

Rock and Mineral Analysis > 2010 > 29(4): 431-437.

DAI A-fang, LU Li-qiang, PAN He, WANG Su-ming, WANG Ya-ping, XU Chun-xue, YUAN Jian. Uncertainty Evaluation for the Determination Results of Antimony in Groundwater Samples by Inductively Coupled Plasma-Mass Spectrometry[J]. Rock and Mineral Analysis, 2010, 29(4): 431-437.

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Uncertainty Evaluation for the Determination Results of Antimony in Groundwater Samples by Inductively Coupled Plasma-Mass Spectrometry

1.
Faculty of Material Science & Chemistry Engineering, China University of Geosciences, Wuhan 430074, China
2.
National Research Center for Geoanalysis, Beijing 100037, China
3.
Faculty of Material Science & Chemistry Engineering, China University of Geosciences, Wuhan 430074, China
4.
Heilongjiang Application Institute of Geological and Mineral Analysis, Harbin 150036, China
5.
National Research Center for Geoanalysis, Beijing 100037, China
6.
National Research Center for Geoanalysis, Beijing 100037, China
7.
National Research Center for Geoanalysis, Beijing 100037, China
8.
National Research Center for Geoanalysis, Beijing 100037, China

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Received Date: May 13, 2010
Revised Date: June 09, 2010

Abstract

ABSTRACT

The measurement uncertainty for the analytical results of Sb in groundwater samples by inductively coupled plasma-mass spectrometry (ICP-MS) was evaluated using continuous propagation model of uncertainty. The x, y relative error concept and double error regression method for calibration curve fitting were introduced. The results showed that the lower the concentration of Sb in the sample, the greater the relative uncertainty of the measurement results. And the sub-uncertainty from the fitting of the calibration curve seems one of the major contributor to the expanded uncertainty.
- inductively,
- coupled,
- plasma-mass,
- spectrometry,
- antimony