title: Studies in atomic-fluorescence spectroscopy-IV The atomic-fluorescence spectroscopic determination of selenium and tellurium.
abstract: Selenium and tellurium are determined down to 0.25 and 0.12 p pm respectively by measuring the atomic-fluorescence signals at 2040 A and 2143 A respectively. Other possible wavelengths of measurement are considered in detail and the effects of some extraneous ions are examined. Microwave-excited electrodeless discharge tubes are used as spectral sources and intensity measurements are made with a Unicam SP 900A atomic-absorption/flame-emission spectrophotometer. Atomic-absorption measurements are also made with the same sources and spectrophotometer. The advantages of atomic-fluorescence methods and the use of electrodeless discharge tubes are discussed.
authors.affiliation: Chemistry Department, Imperial College, London S.W. 7, England.
authors.forename: R M
authors.initials: RM
authors.lastname: Dagnall
authors.forename: K C
authors.initials: KC
authors.lastname: Thompson
authors.forename: T S
authors.initials: TS
authors.lastname: West