DETERMINATION OF CR(III) AND CR(VI) IN ENVIRONMENTAL WATERS BY DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY USING FLOW INJECTION ON-LINE PRECONCENTRATION WITH DOUBLE-MICROCOLUMN ADSORPTION

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SUN H-W.; KANG W-J.; HA J.; LIANG S-X.; SHEN S.G.

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Journal: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS) Year:2004 | Volume:1 | Issue:1 Page(s): 40-46

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Title

DETERMINATION OF CR(III) AND CR(VI) IN ENVIRONMENTAL WATERS BY DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY USING FLOW INJECTION ON-LINE PRECONCENTRATION WITH DOUBLE-MICROCOLUMN ADSORPTION

Author(s)

Keywords

FLOW INJECTION

ON-LINE PRECONCENTRATION

DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY

CHROMIUM(III)

CHROMIUM(VI)

Abstract

The species of Cr(III) and Cr(VI) in water samples were determined by FLOW INJECTION ON-LINE PRECONCENTRATION and separation on two-microcolumn system–DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY during a collaborative analysis for certification. The Cr(III) and Cr(VI) in water samples were retained on two microcolumns with ion exchange resin and were eluted directly to nebulizer by 15% HNO3 and 8% NH4NO3, respectively. The characteristic concentration (at the sensitivity grade of 2 mV min-1 for 1 min of preconcentration time) for Cr(III) and Cr(VI) were 0.130 and 0.0985 µg l-1, in the order which were 332- and 431-fold better than those of FAAS, and 45- and 47-fold better than those of FI-FAAS, respectively. The relative standard deviations were 3.27% and 3.66% with corresponding detection limits (3?) of 0.244 and 0.235 µg l-1, respectively. The linear ranges of determinations for Cr(III) and Cr(VI) were 0~100 µgm l-1 with correlation coefficients of 0.9984 to 0.9996. The satisfactory recovery of 94.4%~106% for Cr(III) and Cr(VI) could be obtained from water samples.

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APA: Copy

SUN, H-W., KANG, W-J., HA, J., LIANG, S-X., & SHEN, S.G.. (2004). DETERMINATION OF CR(III) AND CR(VI) IN ENVIRONMENTAL WATERS BY DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY USING FLOW INJECTION ON-LINE PRECONCENTRATION WITH DOUBLE-MICROCOLUMN ADSORPTION. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 1(1), 40-46. SID. https://sid.ir/paper/282006/en

Vancouver: Copy

SUN H-W., KANG W-J., HA J., LIANG S-X., SHEN S.G.. DETERMINATION OF CR(III) AND CR(VI) IN ENVIRONMENTAL WATERS BY DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY USING FLOW INJECTION ON-LINE PRECONCENTRATION WITH DOUBLE-MICROCOLUMN ADSORPTION. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)[Internet]. 2004;1(1):40-46. Available from: https://sid.ir/paper/282006/en

IEEE: Copy

H-W. SUN, W-J. KANG, J. HA, S-X. LIANG, and S.G. SHEN, “DETERMINATION OF CR(III) AND CR(VI) IN ENVIRONMENTAL WATERS BY DERIVATIVE FLAME ATOMIC ABSORPTION SPECTROMETRY USING FLOW INJECTION ON-LINE PRECONCENTRATION WITH DOUBLE-MICROCOLUMN ADSORPTION,” JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), vol. 1, no. 1, pp. 40–46, 2004, [Online]. Available: https://sid.ir/paper/282006/en

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