Solar blind photocell - a simple element specific detector in Hg, As and Se speciation

Determination of Mercury in Fish Tissue Using a Minianalyzer Based on Cold Vapor Atomic Absorption Spectrometry at the 184.9 nm Line

“…No filters, lens or monochromators were used for developing it. 17 Thus, it was less expensive and much more simple compared to the corresponding dispersive analyzers. A "zero" mercury gas filter, which absorbed any mercury vapor traces present in the gas flow, consisted of gold deposited on quartz wool.…”

Atomic Spectrometry Update. Advances in atomic emission, absorption, and fluorescence spectrometry, and related techniques

“…Nevertheless, some old ideas resurface, such as the use of solar blind photomultipliers as the basis of nondispersive, simple, element specific (As, Hg or Se) AAS instruments. 401 Prior separation of the analyte element was necessary.…”

“…One report described the development of a simple element-specific detector for Hg, Se and As speciation. 401 This comprised a solar-blind photocell as a narrow bandwidth detector to replace the dispersion system normally used in AAS, resulting in a LOD of v1 ng l 21 for Hg species and v1 mg l 21 for As species. Two reports, detailing different extraction methods for tetrethyllead, were published.…”

“…691 A simple element specific detector using a solar blind photocell instead of a dispersion system has been described for the speciation of As, Hg and Se. 401 Spectrometric studies of AAS background lamps for As and Se measured with a CsI cathode photocell showed its quality as a narrow band detector. Species determination was carried out subsequent to GC or HPLC separation.…”