Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/35069
標題: Microdialysis of salicylic acid from viscous emulsion samples prior to high-performance liquid chromatographic determination
作者: Jen, J.F.
鄭政峰
Tsai, Y.Y.
Yang, T.C.
關鍵字: microdialysis;salicylic acid;automated online dialysis;electrochemical detection;trace enrichment;human plasma;amino-acids;rat-blood;membrane;electrophoresis;ultrafiltration;beverages
Project: Journal of Chromatography A
期刊/報告no:: Journal of Chromatography A, Volume 912, Issue 1, Page(s) 39-43.
摘要: 
A micro-dialysis method was developed to isolate aqueous salicylic acid from viscous emulsion samples prior to HPLC determination. The optimal conditions for obtaining dialysis efficiency of salicylic acid as well as chromatographic conditions were investigated. Experimental results indicated that the dialysis achieved at pH 2.0 (0.025 M phosphate solution), 0.5 M NaCl addition, and 50-mul/min flow-rate of perfusion stream offered an optimal result. The proposed method provided a simple procedure for isolating salicylic acid from viscous emulsion samples. Application was illustrated by the analysis of salicylic acid in cosmetic products. (C) 2001 Elsevier Science BN. All rights reserved.
URI: http://hdl.handle.net/11455/35069
ISSN: 0021-9673
DOI: 10.1016/s0021-9673(01)00562-3
Appears in Collections:化學系所

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