High resolution g.l.c. specifications for plant spray oils

Abstract

Abstract High resolution g.l.c. chromatograms of a series of reference plant‐spraying oils were used for the development of proposed g.l.c standards for spraying oils in Australia. The mean size and size‐range of molecules in the oils have been specified in relation to carbon number positions for reference n ‐paraffins. Problems with reproducibility and precision with reduced pressure distillation (10 mm Hg) of plant‐spraying oils have been demonstrated and discussed.