The Use of a Beveled Porous-Polypropylene Hollow Fiber for Liquid-Liquid Microextraction in Paper Spray- Mass Spectrometry

Jian-Siang Wang, Pei-Hua Lai, Yea-Wenn Liou, Chien-Chung Chen and Cheng-Huang Lin^*

^*Corresponding Author: Cheng-Huang Lin, Department of Chemistry, National Taiwan Normal University, 88 Sec. 4, Tingchow Road, Taipei, Taiwan, Tel: +886277346170, Fax: +886229324249 Email: