کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5139129 | 1494860 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of various β-cyclodextrin derivatives as chiral selectors for the enantiomeric separation of higenamine by capillary electrophoresis
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کلمات کلیدی
M-β-CDBGEHP-β-CDβ-cyclodextrin derivativesCM-β-CDS-β-CDCapillary electrophoresis - الکتروفورزمویرگیbackground electrolyte - الکترولیت پس زمینهEnantioseparation - ایزوتوپ کربنCyclodextrin - سیکلودکسترینmethyl-β-cyclodextrin - متیل-β-سیکلوکودکسترینHydroxypropyl-β-cyclodextrin - هیدروکسی پروپیل بتا-سیکلوکودکسترینHigenamine - هیگینامینCarboxymethyl-β-cyclodextrin - کربوکسی متیل-ب-سیکلوکودکسترین
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present work, four β-cyclodextrin derivatives including neutral (methyl- and hydroxypropyl-) and anionic (carboxymethyl- and sulfated-) β-cyclodextrin derivatives have been tested for the enantioseparation of higenamine by capillary electrophoretic method. To our knowledge, there is no literature about using capillary electrophoresis for the chiral separation of higenamine. To achieve the best resolution in the presence of each β-cyclodextrin derivative, the primary factors affecting separation efficiency, such as buffer pH and concentration of β-cyclodextrin derivatives, were investigated. All enantiomeric separation was performed by 30 mmol/L phosphate buffer with an applied voltage of 20 kV or â 20 kV. Under the optimum conditions, four β-cyclodextrin derivatives (methyl-β-cyclodextrin, hydroxypropyl-β-cyclodextrin, carboxymethyl-β-cyclodextrin and sulfated-β-cyclodextrin) exhibited good separation performances for higenamine with the Rs value of 2.3, 5.8, 9.4 and 11.7 respectively. As well as the chiral separation abilities of different β-cyclodextrin derivatives were compared. Moreover, the method for determining R-(+)-higenamine in Nelumbins plumula was proposed employing carboxymethyl-β-cyclodextrin as the chiral selector.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 134, September 2017, Pages 289-294
Journal: Microchemical Journal - Volume 134, September 2017, Pages 289-294
نویسندگان
Yongjing Liu, Hongmin Yu, Hua Zhang, Lishuang Yu, Wei Xu,