发明名称 |
Methods for detecting and correcting inaccurate results in inductively coupled plasma-atomic emission spectrometry |
摘要 |
A method for detecting and correcting inaccurate results in inductively coupled plasma-atomic emission spectrometry (ICP-AES). ICP-AES analysis is performed across a plurality of selected locations in the plasma on an unknown sample, collecting the light intensity at one or more selected wavelengths of one or more sought-for analytes, creating a first dataset. The first dataset is then calibrated with a calibration dataset creating a calibrated first dataset curve. If the calibrated first dataset curve has a variability along the location within the plasma for a selected wavelength, errors are present. Plasma-related errors are then corrected by diluting the unknown sample and performing the same ICP-AES analysis on the diluted unknown sample creating a calibrated second dataset curve (accounting for the dilution) for the one or more sought-for analytes. The cross-over point of the calibrated dataset curves yields the corrected value (free from plasma related errors) for each sought-for analyte.
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申请公布号 |
US7768639(B1) |
申请公布日期 |
2010.08.03 |
申请号 |
US20080212915 |
申请日期 |
2008.09.18 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY |
发明人 |
CHAN GEORGE C. Y.;HIEFTJE GARY M. |
分类号 |
G01N21/73 |
主分类号 |
G01N21/73 |
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