title: [Slurry sampling for direct determination of trace cadmium in amber by graphite furnace atomic absorption spectrometry].
abstract: A method for the direct determination of trace cadmium in amber by graphite furnace atomic absorption spectrometry (GFAAS) with slurry sampling was described. Palladium nitrate was used as a matrix modifier to eliminate the interference. Slurry stability and the influences of the matrix modifier, ashing/atomization temperature and coexistent ions on analytical signals were investigated in detail. Under the optimized experimental conditions, the detection limit of this method was 9.4 ng x g(-1) with a precision of 6.1%.
authors.affiliation: Key Laboratory, Wuhan Polytechnic University, Wuhan 430023, China.
authors.forename: Shi-zhong
authors.initials: SZ
authors.lastname: Chen
authors.forename: Deng-bo
authors.initials: DB
authors.lastname: Lu