DIESEL FUEL DERIVED FROM VEGETABLE-OILS, V [1] - GAS-CHROMATOGRAPHIC DETERMINATION OF FREE GLYCEROL IN TRANSESTERIFIED VEGETABLE-OILS

被引：37

作者：

MITTELBACH, M

机构：

[1] Institut für Organische Chemie, Karl-Franzens Universität Graz, Graz, 8010

来源：

CHROMATOGRAPHIA | 1993年 / 37卷 / 11-12期

关键词：

GAS CHROMATOGRAPHY; FATTY ACID METHYL ESTERS; DIESEL FUEL SUBSTITUTE; GLYCEROL;

D O I：

10.1007/BF02274113

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A GC method for the determination of free glycerol in vegetable oil methyl esters used as diesel fuel is described. The sample preparation includes dissolving in dimethylformamide, silylation with bis-trimethylsilyltrifluoroacetamide (BSTFA) and separation on a methyl silicone capillary column using either FID or MS detection. The recovery was tested using standard samples containing known amounts of glycerol. The results of the analysis of different samples were compared with those obtained by enzymatic determination. The method described offers a far more sensitive and quick determination of free glycerol compared to other methods.

引用

页码：623 / 626

页数：4

共 8 条

[1]

BAILER J, 1991, J ANAL CHEM+, V186, P340

[2]

BONDIOLI P, 1992, RIV ITAL SOSTANZE GR, V69, P7

[3]

MARIANI C, 1984, RIV ITAL SOSTANZE GR, V61, P221

[4]

MITTELBACH M, 1992, LIQUID FUELS FROM RENEWABLE RESOURCES, P74

[5] QUANTITATIVE-DETERMINATION OF GLYCERIN IN SOAP BY CAPILLARY GAS-CHROMATOGRAPHY [J].

MOLEVER, K .

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1987, 64 (09) :1356-1357

[6]

WIDMER WW, 1988, LC GC-MAG SEP SCI, V6, P607

[7]

1989, OFFICIAL METHODS AM

[8]

1991, STANDARDS QUALITY RM

← 1 →