Evaluation of the time-resolved spark for the determination of sodium, potassium, and calcium in microsamples

John T. McDonald, J. C. Williams, James C. WIlliams

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

This paper describes the evaluation of a time-resolved graphite spark source emission spectrometer built for the purpose of determining Ca, Na, and K in nanoliter volume samples of renal fluid. Subnanogram detection limits calculated from the working curve slope and the uncertainty of the sample signal are reported for Ca, Na and K; these detection limits are some three orders of magnitude higher than the shot noise limit. With the use of Li as an internal standard, working curves from 0 to 1 ng of Na, K, and Ca are shown. System performance data are given, and the utility of the analysis is discussed.

Original languageEnglish (US)
Pages (from-to)697-702
Number of pages6
JournalApplied Spectroscopy
Volume43
Issue number4
DOIs
StatePublished - Jan 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

Fingerprint Dive into the research topics of 'Evaluation of the time-resolved spark for the determination of sodium, potassium, and calcium in microsamples'. Together they form a unique fingerprint.

  • Cite this