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Die Bestimmung von Nanogramm‐Mengen Quecksilber aus Lösungen durch ein flammenloses atomares Absorptionsverfahren
Author(s) -
Brandenberger H.,
Bader H.
Publication year - 1967
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19670500522
Subject(s) - chemistry , mercury (programming language) , atomic absorption spectroscopy , detection limit , copper , analytical chemistry (journal) , environmental chemistry , chromatography , physics , organic chemistry , quantum mechanics , computer science , programming language
A flameless atomic absorption method for the determination of small amounts of mercury in solutions is described. The mercury is amalgamated quantitatively on a copper wire and subsequently vaporized in an absorption cell which is placed in the light path of a commercial atomic absorption instrument. The mercury vapor can be quantitatively determined by its absorption of the 253.7 nm mercury line. The method has a detection limit of 0.2 ng and is therefore about 10000 times more sensitive than atomic absorption analysis using flame atomization.