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The CSP was used for the separation of some amino acid derivatives and pyrethroid insecticides by chiral HPLC. Satisfactory baseline separation required optimization of the variables of mobile phase composition. Use of dichloromethane as modifier in the mobile phase gave baseline separations of amino acid derivatives. The two enantiomers of fenpropathrin and four stereoisomers of fenvalerate were baseline separated using hexane\u2010dichloromethane\u2010ethanol as mobile phase. The results show that the enantioselectivity of the new CSP is better than Pirkle type 1\u2010A column for these compounds. Only partial separations were observed for the stereoisomers of cypermethrin and cyfluthrin, which gave even and eight peaks, respectively.<\/jats:p>","DOI":"10.1002\/jssc.200600497","type":"journal-article","created":{"date-parts":[[2007,5,31]],"date-time":"2007-05-31T11:47:17Z","timestamp":1180612037000},"page":"1888-1892","source":"Crossref","is-referenced-by-count":8,"title":["Preparation of a new chiral stationary phase for HPLC based on the (<i>R<\/i>)\u2010 1\u2010phenyl\u20102\u2010(4\u2010methylphenyl)ethylamine amide derivative of (<i>S<\/i>)\u2010valine and 2\u2010chloro\u20103,5\u2010dinitrobenzoic acid: Enantioseparation of amino acid derivatives and pyrethroid insecticides"],"prefix":"10.1002","volume":"30","author":[{"given":"Xulin","family":"Tan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shicong","family":"Hou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jingli","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,7,23]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"crossref","unstructured":"Subramanian G. 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