Interferences Removal for Cadmium Determination in Samples with Complex Matrices by Hydride Generation Coupled with Non-dispersive Atomic Fluorescence Spectrometry
|
Accession number;06A0028776
|
| Title;Interferences Removal for Cadmium Determination in Samples with Complex Matrices by Hydride Generation Coupled with Non-dispersive Atomic Fluorescence Spectrometry |
| Author;
LI ZHONGXI
(Northwest Geological Res. Inst., Xi'an, Chn)
ZHOU LIPING
(Northwest Geological Res. Inst., Xi'an, Chn)
|
Journal Title;Anal Sci
|
Journal Code:G0673B
|
ISSN:0910-6340
|
|
VOL.22;NO.1;PAGE.123-126(2006)
|
| Figure&Table&Reference;FIG.4, TBL.6, REF.21 |
| Pub. Country;Japan |
| Language;English |
| Abstract;An intermittent on-line concentration and separation system coupled with HG-AFS was developed to eliminate serious interferences from Cu'2+', Pb'2+' and Zn'2+' on the determination of cadmium. In the present method, the interferences from common coexisting ions, such as Cu'2+', Pb'2+', Zn'2+', Fe'3+' and Ni'2+', were greatly reduced. Under the optimized conditions, a detection limit of 3 pg ml'-1' (3.SIGMA., n = 11) and a precision of 1.9% RSD for 1 ng ml'-1' of Cd were obtained. The method was successfully applied to the determination of cadmium in a series of Chinese Geological Reference Materials (SRMs) and GBW01621 ferronickel alloy using simple aqueous standard calibration technique. The results obtained were in good agreement with the certified values. (author abst.) |
|
|
|
Related Articles;
|
|
|
