| dc.creator | GAO,JINZHANG | |
| dc.creator | SUN,XIANGLI | |
| dc.creator | YANG,WU | |
| dc.creator | FAN,HAIFENG | |
| dc.creator | LI,CHONGYANG | |
| dc.creator | MAO,XUEFENG | |
| dc.date | 2008-03-01 | |
| dc.date.accessioned | 2017-03-07T16:01:37Z | |
| dc.date.available | 2017-03-07T16:01:37Z | |
| dc.identifier | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000100020 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/394805 | |
| dc.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 | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Sociedad Chilena de Química | |
| dc.source | Journal of the Chilean Chemical Society v.53 n.1 2008 | |
| dc.subject | Electrolyte composition | |
| dc.subject | metal cations | |
| dc.subject | capillary zone electrophoresis | |
| dc.title | SEPARATION AND DETERMINATION OF SIX METAL CATIONS BY CAPILLARY ZONE ELECTROPHORESIS | |
| dc.type | Artículos de revistas | |
