SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS

A rapid, simple and reliable method was devised for separation and determination of six metal cations, based on the capillary zone electrophoresis. The results showed that the complete separation of K+,Cu2+, Zn2+, Mn2+, Pb2+and Cd2+canbe achieved within 5 min. Anew electrolyte system containing 15 m...

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Autores principales:	GAO,JINZHANG, SUN,XIANGLI, YANG,WU, FAN,HAIFENG, LI,CHONGYANG , MAO,XUEFENG
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2008
Materias:	Electrolyte composition metal cations capillary zone electrophoresis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100020
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spelling	oai:scielo:S0717-970720080001000202008-07-03SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESISGAO,JINZHANGSUN,XIANGLIYANG,WUFAN,HAIFENGLI,CHONGYANG MAO,XUEFENG Electrolyte composition metal cations capillary zone electrophoresis A rapid, simple and reliable method was devised for separation and determination of six metal cations, based on the capillary zone electrophoresis. The results showed that the complete separation of K+,Cu2+, Zn2+, Mn2+, Pb2+and Cd2+canbe achieved within 5 min. Anew electrolyte system containing 15 mmol-L"¹ imidazole as a background absorbance reference and 8 mmol-L"¹ malonic acid, 2 mmol-L-1 18-crown-6 ether as the complexing agents, 10%methanol as anorganic modifier, by using acetic acid to adjust the pH=4.40 was developed. The applied voltage was 20 kV at 25 °C. Under the optimum conditions, 6 ions were separated and determined with the correlation coefficient of 0.9984-0.9993. The detection limits (S/N=3) from 0.05 (K+)to 0.75 (Zn^mg-L¹. The repeatability of migration times was less than 0.60% and of peak area ranged from 3.4 to 5.6% (n=6). The results were compared with AAS for analyzing the real samples of waste-water and snow waterinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.53 n.1 20082008-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100020en10.4067/S0717-97072008000100020
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Electrolyte composition metal cations capillary zone electrophoresis
spellingShingle	Electrolyte composition metal cations capillary zone electrophoresis GAO,JINZHANG SUN,XIANGLI YANG,WU FAN,HAIFENG LI,CHONGYANG MAO,XUEFENG SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
description	A rapid, simple and reliable method was devised for separation and determination of six metal cations, based on the capillary zone electrophoresis. The results showed that the complete separation of K+,Cu2+, Zn2+, Mn2+, Pb2+and Cd2+canbe achieved within 5 min. Anew electrolyte system containing 15 mmol-L"¹ imidazole as a background absorbance reference and 8 mmol-L"¹ malonic acid, 2 mmol-L-1 18-crown-6 ether as the complexing agents, 10%methanol as anorganic modifier, by using acetic acid to adjust the pH=4.40 was developed. The applied voltage was 20 kV at 25 °C. Under the optimum conditions, 6 ions were separated and determined with the correlation coefficient of 0.9984-0.9993. The detection limits (S/N=3) from 0.05 (K+)to 0.75 (Zn^mg-L¹. The repeatability of migration times was less than 0.60% and of peak area ranged from 3.4 to 5.6% (n=6). The results were compared with AAS for analyzing the real samples of waste-water and snow water
author	GAO,JINZHANG SUN,XIANGLI YANG,WU FAN,HAIFENG LI,CHONGYANG MAO,XUEFENG
author_facet	GAO,JINZHANG SUN,XIANGLI YANG,WU FAN,HAIFENG LI,CHONGYANG MAO,XUEFENG
author_sort	GAO,JINZHANG
title	SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
title_short	SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
title_full	SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
title_fullStr	SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
title_full_unstemmed	SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS
title_sort	separation and determination of six metal cations by capillary zone electrophoresis
publisher	Sociedad Chilena de Química
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100020
work_keys_str_mv	AT gaojinzhang separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis AT sunxiangli separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis AT yangwu separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis AT fanhaifeng separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis AT lichongyang separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis AT maoxuefeng separationanddeterminationofsixmetalcationsbycapillaryzoneelectrophoresis
_version_	1718445383858782208

SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS

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