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Enantioseparations of these tropa alkaloids were optimized by using a standard oil\u2010in\u2010water (<jats:italic>O<\/jats:italic>\/<jats:italic>W<\/jats:italic>) microemulsion and varying the nature and concentration of CD additives as well as of the organic modifier (methanol, 2\u2010propanol or ACN) whilst keeping the applied voltage of 15\u2005kV and capillary temperature of 30\u00b0C constant. The standard (O\/W) microemulsion BGE solution consisted of 0.8% w\/w octane, 6.6% w\/w 1\u2010butanol, 2.0% w\/w SDS and 90.6% w\/w 10\u2005mM sodium tetraborate buffer (pH\u20059.2). Enantioseparations with high resolution and short migration times of all tropa alkaloids were achieved by using heptakis(2,3\u2010di\u2010<jats:italic>O<\/jats:italic>\u2010methyl\u20106\u2010<jats:italic>O<\/jats:italic>\u2010sulfo)\u2010\u03b2\u2010CD and sulfated \u03b2\u2010CD in the microemulsion BGE and were superior to corresponding CD\u2010modified CE methods.<\/jats:p>","DOI":"10.1002\/elps.200700008","type":"journal-article","created":{"date-parts":[[2007,6,25]],"date-time":"2007-06-25T12:20:46Z","timestamp":1182774046000},"page":"2693-2700","source":"Crossref","is-referenced-by-count":37,"title":["Enantioseparation of chiral tropa alkaloids by means of cyclodextrin\u2010modified microemulsion electrokinetic chromatography"],"prefix":"10.1002","volume":"28","author":[{"given":"Yaser","family":"Bitar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrike","family":"Holzgrabe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,7,26]]},"reference":[{"key":"e_1_2_1_2_2","first-page":"192","volume":"41","author":"Batra S.","year":"1993","journal-title":"Prog. 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