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Capillary electrophoresis with electrospray mass spectrometry detection for low-molecular-mass compounds.
Wheat, T E; Lilley, K A; Banks, J F.
Afiliação
  • Wheat TE; Thermo CE, Franklin, MA 02038, USA.
J Chromatogr A ; 781(1-2): 99-105, 1997 Sep 26.
Article em En | MEDLINE | ID: mdl-9368381
ABSTRACT
Mass spectrometry (MS) detection using electrospray ionization (ESI) has been explored for the separation by capillary electrophoresis (CE) of a number of sample mixtures containing low-molecular-mass species. Optimal sheath liquid composition has been determined using a peptide mixture in which femtomolar quantities of analyte were easily observed. Effects of CE buffer choice were studied in detail. Also, a separation of basic drugs in cough syrup has been successfully detected by ESI-MS. Using negative ionization, a mixture of alkyl sulfonates and a mixture of food dyes were analyzed. All components were easily resolved and identified by molecular weight.
Assuntos
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Base de dados: MEDLINE Assunto principal: Antitussígenos / Peptídeos / Espectrometria de Massas / Alcanossulfonatos / Eletroforese Capilar / Corantes Tipo de estudo: Diagnostic_studies Idioma: En Ano de publicação: 1997 Tipo de documento: Article
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Base de dados: MEDLINE Assunto principal: Antitussígenos / Peptídeos / Espectrometria de Massas / Alcanossulfonatos / Eletroforese Capilar / Corantes Tipo de estudo: Diagnostic_studies Idioma: En Ano de publicação: 1997 Tipo de documento: Article