Rosilene S. Nascimento , Denise B.C. Mendes , Judith Maria Gomes Matos , Júlio C.J. Silva , Virgínia S.T. Ciminelli , Waldomiro B. Neto , José Bento B. Silva
2008, 29(3):77-82. DOI: 10.46770/AS.2008.03.001
Abstract:
A. Keshav Krishna , K. Rama Mohan , N.N. Murthy , P.K. Govil
2008, 29(3):83-89. DOI: 10.46770/AS.2008.03.002
Abstract:
G. Anil , M.R.P. Reddy , S.T. Ali , N.R. Munirathnam , T.L. Prakash
2008, 29(3):90-92. DOI: 10.46770/AS.2008.03.003
Abstract:
Liang He , Xiaofan Zhu , Li Wu , Xiandeng Hou
2008, 29(3):93-98. DOI: 10.46770/AS.2008.03.004
Abstract:On-line chemical vapor generation atomic fluorescence spectrometry (CVG-AFS) was, for the first time, used to determine trace copper in biological samples by merging acidified sample solution with potassium tetrahydroborate aqueous solution in the presence of micro-amounts of 1,10-phenanthroline. Nitric acid, for both sample digestion and chemical vapor generation, was used as the acid medium. CVG conditions and instrumental parameters were optimized for the best CVG efficiency, good gas/liquid separation, and efficient atomization/excitation. Under the optimized conditions, a limit of detection of 4 ng mL(-1) was obtained for copper, with a linear dynamic range of over three orders of magnitude. The proposed method was successfully applied to the determination of copper in biological certified reference materials.
Gokce Kaya , Ismail Akdeniz , Mehmet Yaman
2008, 29(3):99-106. DOI: 10.46770/AS.2008.03.005
Abstract: