ISSN:
0306-042X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Discrete aqueous solution volumes were nebulized and introduced into an inductively coupled plasma (ICP) operated at atmospheric pressure. Metallic elements in the injected sample were atomized and ionized to yield a pulse of sample ions lasting approximately 20 s. A fraction of these sample ions was extracted into a vacuum system where the ions were m/z resolved and detected. Pulse counting and signal averaging techniques were used to determine isotope ratios for Mg and Ni present at 2-40 mg I-1 in solution volumes of 50-200 μl. The precision of these isotope ratio determinations was ± 1-3%. This ionization method is potentially valuable for determining metal isotope ratios in solution samples at high sample throughput rates, e.g. one sample every 3-4 min.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bms.1200100212
