CANCELLATION OF MATRIX EFFECTS AND CALIBRATION BY ISOTOPE-DILUTION INISOTOPE-SELECTIVE DIODE-LASER ATOMIC-ABSORPTION SPECTROMETRY

Authors
WIZEMANN HD NIEMAX K
Citation
Hd. Wizemann et K. Niemax, CANCELLATION OF MATRIX EFFECTS AND CALIBRATION BY ISOTOPE-DILUTION INISOTOPE-SELECTIVE DIODE-LASER ATOMIC-ABSORPTION SPECTROMETRY, Analytical chemistry, 69(20), 1997, pp. 4291-4293
Citations number
15
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical chemistry → ACNP
ISSN journal
00032700
Volume
69
Issue
20
Year of publication
1997
Pages
4291 - 4293
Database
ISI
SICI code
0003-2700(1997)69:20<4291:COMEAC>2.0.ZU;2-E
Abstract
High-resolution atomic absorption measurements of lead isotopes are pe rformed in a graphite tube atomizer with integrated low-pressure de di scharge using frequency-doubled laser diode radiation at 405.78 mm. Fo r the first time, calibration by isotope dilution is demonstrated in a nalytical laser spectroscopy. Furthermore, isotope dilution is proved to be an effective technique for cancellation of chemical as well as p hysical matrix effects in optical spectrochemistry.