PMID- 12007134 OWN - NLM STAT- MEDLINE DCOM- 20030818 LR - 20121115 IS - 0173-0835 (Print) IS - 0173-0835 (Linking) VI - 23 IP - 9 DP - 2002 May TI - The use of a highly sulfated cyclodextrin for the simultaneous chiral separation of amphetamine-type stimulants by capillary electrophoresis. PG - 1328-34 AB - We investigated the simultaneous chiral separation of nine amphetamine type stimulants (dl-norephedrine, dl-norpseudoephedrine, dl-ephedrine, dl-pseudoephedrine, dl-amphetamine, dl-methamphetamine, dl-methylenedioxyamphetamine (MDA), dl-methylenedioxymethamphetamine (MDMA), and dl-methylenedioxyethylamphetamine (MDEA)) by capillary electrophoresis using highly sulfated gamma-cyclodextrin (SU(XIII)-gamma-CD) as a chiral selector. Three different approaches using SU(XIII)-gamma-CD with 50 mM phosphate background electrolyte were designed; (I) high CD concentration (10 mM SU(XIII)-gamma-CD) at neutral pH (pH 7.0) in the normal polarity mode, (II) low CD concentration (1.0 mM) at low pH (pH 2.6) in the normal polarity mode and (III) high CD concentration at low pH (pH 2.6) in the reversed-polarity mode. In mode (II), the effects of adding three neutral CDs (beta-CD, dimethyl-beta-CD and hydroxypropyl-beta-CD) were also investigated. The best separation was obtained after optimizing mode (III) as follows: run buffer of 10 mM SU(XIII)-gamma-CD with 50 mM phosphate background electrolyte at pH 2.6, applied voltage of -12 kV and capillary temperature of 15 degrees C. FAU - Iwata, Yuko T AU - Iwata YT AD - National Research Institute of Police Science, Chiba, Japan. togawa@nrips.go.jp FAU - Garcia, Agnes AU - Garcia A FAU - Kanamori, Tatsuyuki AU - Kanamori T FAU - Inoue, Hiroyuki AU - Inoue H FAU - Kishi, Tohru AU - Kishi T FAU - Lurie, Ira S AU - Lurie IS LA - eng PT - Journal Article PL - Germany TA - Electrophoresis JT - Electrophoresis JID - 8204476 RN - 0 (Adrenergic Agents) RN - 0 (Amphetamines) RN - 0 (Central Nervous System Stimulants) RN - 0 (Cyclodextrins) RN - 0 (Sulfates) RN - 0 (gamma-Cyclodextrins) RN - KZJ0BYZ5VA (gamma-cyclodextrin) SB - IM MH - Adrenergic Agents/isolation & purification MH - Amphetamines/*isolation & purification MH - Central Nervous System Stimulants/*isolation & purification MH - Chromatography, Micellar Electrokinetic Capillary/*methods MH - Cyclodextrins/*chemistry/pharmacology MH - Dose-Response Relationship, Drug MH - Hydrogen-Ion Concentration MH - Osmolar Concentration MH - Stereoisomerism MH - Sulfates/chemistry/pharmacology MH - Temperature MH - *gamma-Cyclodextrins EDAT- 2002/05/15 10:00 MHDA- 2003/08/19 05:00 CRDT- 2002/05/15 10:00 PHST- 2002/05/15 10:00 [pubmed] PHST- 2003/08/19 05:00 [medline] PHST- 2002/05/15 10:00 [entrez] AID - 10.1002/1522-2683(200205)23:9<1328::AID-ELPS1328>3.0.CO;2-Z [doi] PST - ppublish SO - Electrophoresis. 2002 May;23(9):1328-34. doi: 10.1002/1522-2683(200205)23:9<1328::AID-ELPS1328>3.0.CO;2-Z.