A comparison of ultraviolet spectrophotometry with other methods for the determination of nitrate in water

Thoms R. Holm, Walton R Kelly, Lauren F. Sievers, Daniel L. Webb

Research output: Contribution to journalArticlepeer-review

Abstract

We determined nitreat in 267 water samples using ultra-violet (UV) spectrophotomety, ion chromatograpohy, ion chromatography (IC), and ion-selcetive-electrode (ISE) potentiometryu, We analyzed the UV spectra using multi-liner regression (MLR) and numerical differentioation (second denvative[2D[). The nitrar concetrarion determine by both UV methods were very close to those determined by IC. For 30 of the sampless, we also determined nitrate in the field using a colorimetric test kit and visually compared it ot a set of color standards.

Original languageEnglish (US)
JournalSpectroscopy (Santa Monica)
Volume12
Issue number9
StatePublished - Dec 1 1997
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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