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Evaluation of a low-resolution near-IR monochromator for atomic emission detection in capillary gas chromatography

✍ Scribed by Pedersen-Bjergaard, Stig ;Greibrokk, Tyge

Book ID
102894239
Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
712 KB
Volume
18
Category
Article
ISSN
0935-6304

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✦ Synopsis

A single 0.2 m focal length near-IR monochromator providing a 0.8-3.2 nm effective bandpass was evaluated as spectrometer for F-, C1-, Br-, I-, S-, and P-selective atomic emission detection in capillary gas chromatography. With optimized plasma conditions and careful wavelength selection, interferences from eluting hydrocarbons were almost eliminated for all the elements studied (element-tocarbon selectivities between 1OOO:l and 1OOOO:l). For CI and S, other heteroatoms were found not to cause cross-interferences. F-, Br-, I-, and P-selective detection, however, was complicated by this second type of non-specificity. For these atoms, elemental confirmation was carried out by analyzing the samples also for heteroatoms potentially causing interferences.

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