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Three methods for the calibration of solid sampling Zeeman atomic absorption spectrometry allowing independent calibration based on gravimetric principles (and thus usable for certification purposes) are described and intercompared: standard addition to the solid sample, use of synthetic solid matrix matching samples, and extrapolation to zero matrix. The first two methods lead to the best results; extrapolation to zero matrix is less suitable at high concentrations, but is useful where an accuracy of the order of 10 % is acceptable.

Additional information

Authors: HOFMANN C, JRC Geel (BE);PAUWELS J, JRC Geel (BE);VANDECASTEELE C, Katholieke Universiteit Leuven, Department of Chemical Engineering, Heverlee (BE)
Bibliographic Reference: Article: Fresenius' Journal of Analytical Chemistry, Vol. 349 (1994) pp. 779-783
Record Number: 199510138 / Last updated on: 1995-08-22
Original language: en
Available languages: en
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