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Rapid determination of residual hexane in oils by gas chromatography using pyrolyzer
Author(s) -
Hirayama S.,
Imai C.
Publication year - 1977
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02676271
Subject(s) - hexane , chromatography , gas chromatography , pyrolysis , solvent , chemistry , platinum , residual , organic chemistry , algorithm , catalysis , computer science
A simple, direct gas Chromatographic (GC) tech‐nique is described for the quantitative determination of residual hexane in extracted vegetable oils. The method is rapid and sensitive to one ppm hexane. A platinum boat, on which sample oil was placed, is inserted into a pyrolysis chamber in a pyrolyzer at‐tached to a GC, and heated at 150 C for 60 sec to carry the evaporated hexane into the GC with a carrier gas. In the method, the column of GC may be used without the possibility of contamination because the sample is not injected directly into the GC. The method should be useful for the quality con‐trol of solvent extracted oil products.