Analytical Sciences


Abstract − Analytical Sciences, 19(9), 1265 (2003).

Pressure-Controlled On-column Injection Method for Microcolumn Liquid Chromatography
Toyohide TAKEUCHI,* Takuya KIMURA,*1 Ji-Ye JIN,*2 Chuzo FUJIMOTO,*3 Kazutoku OHTA,*4 Kwang-Pill LEE,*5 Je-Jeong RYOO,*5 and Seong-Ho CHOI*5
*1 Department of Chemistry, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
*2 Instrumental Analysis Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
*3 Department of Chemistry, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
*4 Ceramics Research Institute, National Institute of Advanced Industrial Science and Technology, 2266-98 Anagahora, Simoshidami, Moriyama-ku, Nagoya 463-8560, Japan
*5 Department of Chemistry Education, Kyungpook National University, Sangeok-Dong, Taegu 702-701, Korea
A pressure-controlled on-column injection method was developed for microcolumn liquid chromatography. The system was assembled from a syringe pump, a Model M-445 Six-Way Micro Selection Valve, a separation column and a UV detector. The injection volume could be regulated by changing the applied pressure and/or the sample loading time. The system was evaluated in the ion-exchange mode. The system was applied to the determination of anions in river-water samples.