TY - SER AU - Buck,Vinodini E. AU - Barringer,Sheryl A. TI - Comparison of hexane and petroleum ether to measure surface oil content N1 - YA2008 M09 D01 ISSN - 1060-3271 Sources - Journal of AOAC International Sources - 90 (6) 2007 : 1729-1730 ER -