Flame AAS determination of copper in urine using a flow injection on-line preconcentration system based on a polyamine chelating ion exchange column

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Almeida, AA (Author) FFUP; Jun, X (Author) Other; Lima, JLFC (Author) FFUP

Journal

Title: Atomic Spectroscopy

Vol. 21

Pages: 187-193

ISSN: 0195-5373

Publisher: Perkin-Elmer Corp.

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 11 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-Z0T

Abstract (EN): A flow injection system incorporating a polyamine chelating ion exchange column for the flame atomic absorption determination of copper in urine is proposed. At a 5-mL sample volume, the procedure yielded a detection limit of I mug/L and a sample frequency of 20/h. Repeatability (%RSD, n=10) was 0.9% at a 100-mug/L level and 1.4% at a 20-mug/L level. Reproducibility (%RSD; n=3) was 5% for a mean sample concentration of about 33.8 mug/L. For maximum accuracy, a rapid wet sample digestion with H2O2 had to be performed. Results obtained by the proposed methodology (n=20) were in good agreement with those provided by graphite furnace atomic absorption spectrometry.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7