TY - JOUR A1 - Hawley, H A A1 - Mazurek, M A T1 - Oxocarboxylic acids as DNPH derivatives with a monolithic silica column and UV-Vis detection. Y1 - 2008/07/22 N1 - R832165 JF - AMERICAN LABORATORY ONLINE VL - 1 IS - 3 Part 2 SP - 23 EP - 27 PB - ISC Publications ER - TY - JOUR A1 - Li, M A1 - McDow, S R A1 - Tollerud, D J A1 - Mazurek, M A T1 - Seasonal abundance of organic molecular markers in urban particulate matter from Philadelphia, PA. Y1 - 2006/04/ N1 - R832165 JF - ATMOSPHERIC ENVIRONMENT J1 - ATMOS ENVIRON J2 - Atmos.Environ. VL - 40 IS - 13 SP - 2260 EP - 2273 ER -