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- W2025233670 abstract "Telluiium can be determined by atomic absorption spetroscopy at 2143, 2359, and 2386 A The sensitivities for these lines are in the ratio of 1.9.9 187 With aqueous solutions, a Beckman triple-buiner (air-hydrogen) and a 5-pass optical system, the line 2143 Å has a sensitivity of 0.23 p.p.m , and a detection limit ot 0.076 p.p.m The sensitivities for this line in acqueous and organic solvents, and in air-hydrogen and air-acetylene flames were studied and the optimum conditions determined Where necessary, preconcentration of tellurium by coprecipitation with elemental arsenic, 01 by extraction of K2Tel6 or tellurium diethyldithiocarbomate with MIBK can be applied, the latter gives a two-fold enhancement in sensitivity compared with aqueous solutions. Le tellure peut être dosé par spectroscopie par absorption atomique à 2143, 2259 et 2386 Å. Les sensibilités poui ces lignes sont dans le lappoit 1.9.9 187. En solution aqueuse, avec triple brûleui Beckinan (air-hydrogène), à 2143 Å, la sensibilité est de 0.23 p.p.m et la limite de détection 0.076 p.p.m Si nécessaire, il y a possibilité de préconecntration du tellure par coprécipitation à l'aide d'arsenic élémentaire ou par extraction de K2Tel6 ou de diéthyldithiocarbamate de tellure dans un solvant. Tellur kann mit der Flammenabsorptions-Spektralanalyse bei 2143, 2259 und 2386 Å bestimmt werden. Die Empfindlichkeiten dieser Linien haben das Verhältnis 1:9.9:187 Mit Weissngen Lösungen, einem Beckman-Dreifachbrenner (Luft-Wasserstoff) und einem 5-wegigen optischen System ergibt sich mit der Linie 2143 Å eine Empfindlichkeit von 0.23 p.p.m. und eine Nachweisgrenze von 0.076 p.p.m. Die Empfindlichkeiten dieser Linien in wässrigen und organischen Lösungsmitteln und in Luft-Wasserstoff- und Luft-Acetylen-Flaminen wurden untersucht und die optimalen Bedingungen bestimmt Weitere Möglichkeiten zur Empfindlichkeits-steigerung durch vorhergehende Konzentration des Tellurs durch Mitfällung oder Extraktion werden angegeben." @default.
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- W2025233670 date "1967-01-01" @default.
- W2025233670 modified "2023-09-26" @default.
- W2025233670 title "The atomic absorption spectroscopy of Tellurium" @default.
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- W2025233670 doi "https://doi.org/10.1016/s0003-2670(01)80507-9" @default.
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