PMID- 11777196 OWN - NLM STAT- MEDLINE DCOM- 20020117 LR - 20181113 IS - 1044-0305 (Print) IS - 1044-0305 (Linking) VI - 13 IP - 1 DP - 2002 Jan TI - Development of generic liquid chromatography-mass spectrometry methods using experimental design. PG - 2-9 AB - Standard approaches to development of liquid chromatography-mass spectrometry (LC-MS) methods, either ion-pairing or reversed-phase liquid chromatography, have been through trial and error or intentional variation of experimental factors. These approaches to method optimization fail to take into account interactions between experimental factors and therefore the results may not be optimal for the combination of experimental factors. Another approach to optimization is through the use of chemometrics. Chemometric approaches can be more efficient than trial and error or intentional variation because chemometrics make use of multivariate designs; experimental factors are varied simultaneously at the various levels. Therefore chemometrics can take into account interactions between factors. The goal of this study was to develop a generic ion-pair LC-MS method for the analysis of acidic compounds using a chemometric approach called design of experiments (DOE). Four acidic compounds which cover three classes of acidic functional groups: 1-naphthyl phosphate (1), 1-naphthalenesulfonic acid (2), 2-naphthalenesulfonic acid (3), and (1-naphthoxy)acetic acid (4) were used as model compounds to develop the generic method. This study illustrates that LC-MS conditions can be optimized efficiently with minimal amount of experimentation using a chemometric approach to experimental design. FAU - Seto, Carmai AU - Seto C AD - Merck Frosst Canada and Company, Kirkland, Quebec. carmai_seto@merck.com FAU - Bateman, Kevin P AU - Bateman KP FAU - Gunter, Berton AU - Gunter B LA - eng PT - Journal Article PL - United States TA - J Am Soc Mass Spectrom JT - Journal of the American Society for Mass Spectrometry JID - 9010412 SB - IM MH - Chromatography, Liquid/*methods MH - Mass Spectrometry/*methods MH - Models, Statistical MH - *Research Design EDAT- 2002/01/05 10:00 MHDA- 2002/01/23 10:01 CRDT- 2002/01/05 10:00 PHST- 2002/01/05 10:00 [pubmed] PHST- 2002/01/23 10:01 [medline] PHST- 2002/01/05 10:00 [entrez] AID - 10.1016/S1044-0305(01)00334-8 [doi] PST - ppublish SO - J Am Soc Mass Spectrom. 2002 Jan;13(1):2-9. doi: 10.1016/S1044-0305(01)00334-8.