|
|
| Type |
Poster Presentation |
| Area |
Analytical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
ANAL.P-252 |
| Subject |
Sensitive analysis of rare earth elements in a highly saline matrix by capillary electrophoresis
|
| Authors |
jihye kim*, Kihwan Choi1
Chemical Research Division, Korea Atomic Energy Research Institute, Korea
1Center for Organic Analysis, Korea Research Institute of Standards and Science, Korea
|
| Abstract |
Electrokinetic supercharging (EKS) is a powerful in-line concentration method in capillary electrophoresis analysis. However, sample matrix should be removed before injection to enhance the sensitivity. Here, we introduced a method to obtain high sensitivity of rare earth elements in a highly saline matrix by EKS with liquid-liquid extraction (LLE). In LLE, we used heptane including a carrier (0. 29 M (2-ethylhexyl)phosphate) as an acceptor. Then, octanol and 0.1 M nitric acid were used for back extraction. Octanol was necessary to remove the carrier from the sample matrix. Thousand-fold sensitivity enhancement was achieved. |
| E-mail |
jhk1761@hotmail.com |
|
121st General Meeting of the KCS