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Effect of exhaustion hood flow rate in flow injection cold vapor and hydride generation atomic absorption spectrometry
Date
2004-01-01
Author
Cankur, O
Ataman, Osman Yavuz
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The effect of exhaustion hood flow rate in the laboratory was investigated. It has been observed that this parameter significantly affects the analytical signal. This effect was more evident in cold vapor (CV) atomic absorption spectrometry (AAS) signal when unheated quartz T-tube atomizer (QTA) was used as atom cell. At maximum exhaustion hood flow rate, the peak height and peak area values for Cd decreased to 36% and 35%, respectively, of those obtained under no exhaustion. When CV cell with both ends covered with quartz plates was used, exhaustion hood flow rate did not affect the analytical signal significantly. The exhaustion hood flow rate effect was less pronounced in case of heated QTA as compared to unheated QTA. In addition to exhaustion hood flow rate, the air movements around the atom cell also influenced the analytical signal and precision of the measurement.
Subject Keywords
exhaustion hood flow rate
,
Vapor generation
,
Atomic
,
Absorption spectrometry
,
Cold vapor
,
Hydride generation
,
Cadmium
,
Mercury
,
Arsenic
URI
https://hdl.handle.net/11511/31263
Journal
ANALYTICAL LETTERS
DOI
https://doi.org/10.1081/al-120030295
Collections
Graduate School of Natural and Applied Sciences, Article