首页   按字顺浏览 期刊浏览 卷期浏览 Investigation of antioxidants and UV stabilizers from plastics. Part I: Comparison of H...
Investigation of antioxidants and UV stabilizers from plastics. Part I: Comparison of HPLC and SFC; preliminary SFC/MS study

 

作者: P. J. Arpino,   D. Dilettato,   Khoa Nguyen,   A. Bruchet,  

 

期刊: Journal of High Resolution Chromatography  （WILEY Available online 1990）
卷期: Volume 13, issue 1  

页码: 5-12

 

ISSN:0935-6304

 

年代: 1990

 

DOI:10.1002/jhrc.1240130103

 

出版商: Wiley Subscription Services, Inc., A Wiley Company

 

关键词: Normal phase HPLC, isocratic and gradient elution;Capillary SFC, pressure programming;FID detection;Combined SFC/MS;Charge exchange ionization;Polymer additives

 

数据来源: WILEY

 

摘要:

AbstractSynthetic mixtures of additives (antioxidants, UV stabilizers) used in the manufacture of food packaging materials were separated by normal phase HPLC under isocratic or gradient elution, and by capillary SFC using CO2as mobile phase. SFC proved to be more efficient for the separation and determination of additives with a wide range of boiling points and for substances lacking a UV chromophoric moiety. Combined SFC/MS, using a direct coupling interface, produced clear charge transfer spectra resembling EI spectra and proton exchange CI spectra when ammonia was added to the ion source.

 

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