TY - GEN AU - Van Gyseghem,E AU - Van Hemelryck,S AU - Daszykowski,M AU - Questier,F AU - Massart,D L AU - Vander Heyden,Y TI - Determining orthogonal chromatographic systems prior to the development of methods to characterise impurities in drug substances SN - 0021-9673 PY - 2003///1023 KW - Chromatography, High Pressure Liquid KW - Pharmaceutical Preparations KW - isolation & purification KW - Reproducibility of Results KW - Spectrophotometry, Ultraviolet N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/s0021-9673(02)02012-5 ER -