title: Trace analysis by microwave excitation of sealed samples-II determination of 4-100 pg of Cd, In and Tl in 0.5 ml of aqueous solutions.
abstract: Trace analysis by optical emission spectrometry by microwave excitation of sealed samples has been improved by use of H(2) as a filler-gas and of BiI(3) as a matrix. It was found that the selection of suitable quartz for the manufacture of the discharge lamps is important. Limits of determination of 4 pg in 0.5 ml may be obtained for In, Tl and Cd.
authors.affiliation: Analytisch Chemisch Laboratorium Rijksuniversiteit Utrecht Croesestraat 77A, Utrecht Netherlands.
authors.forename: A
authors.initials: A
authors.lastname: van Sandwijk
authors.forename: J
authors.initials: J
authors.lastname: Agterdenbos