A Dynamic Background Correction System for Direct Reading Spectrometry

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Abstract:

A direct reading emission spectrometer system is described which permits dynamic background correction measurements at each analytical wavelength. The system utilizes a refractor plate mounted on a tuning fork as a rapid means for square-wave shifting the spectral band pass from each analytical wavelength to the adjacent background wavelength position. A laboratory computer controls the system, receives the data, and performs the background subtraction. Evaluation of the system has shown that photon counting statistics are applicable and that reliable background corrections are obtained. Comparisons of this correction approach with others that have been used have further demonstrated its advantages for multielement analysis by emission spectrometry.

Keywords: Background correction; Direct reading emission spectrometer; Multielement analysis

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370276774456930

Affiliations: 1: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523 2: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523; present address: Environment Protection Agency, Research Triangle Park, 27711 3: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523; present address: Department of Chemistry, Georgetown University, Washington, DC 20007

Publication date: September 1, 1976

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