Liquefied petroleum gases. Determination of dissolved residues. High temperature Gas chromatographic method

2017 ◽  
Keyword(s):  
High Temperature ◽  
Chromatographic Method ◽  
Gas Chromatographic Method ◽  
High Temperature Gas

scholarly journals Determination of Oligofructose, a Soluble Dietary Fiber, by High-Temperature Capillary Gas Chromatography

2000 ◽  
Vol 83 (4) ◽  
pp. 1020-1026 ◽  
Author(s):  
Dirk Joye ◽  
Hubert Hoebregs
Keyword(s):  
Gas Chromatography ◽  
High Temperature ◽  
Sample Preparation ◽  
Quantitative Determination ◽  
Chromatographic Method ◽  
Capillary Column ◽  
Soluble Dietary Fiber ◽  
Flame Ionization ◽  
Gas Chromatographic Method

Abstract A high-temperature capillary gas chromatographic method was developed for the quantitative determination of oligofructose in foods and food products. Sample preparation involves oxymation and silylation of the extracted sugars. The oximetrimethylsilyl derivatives are analyzed on an apolar capillary column, with detection by flame ionization. The method is accurate, with recovery of spiked samples at >96%. Repeatability was excellent; RSD values of 1.1% were obtained. Other common oligosaccharides, such as malto-, isomalto-, and galactooligosaccharides, and levan do not interfere, making the method specific and reliable.

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