ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
A biparameter sensor using flow injection with solid-phase spectrophotometry for the simultaneous determination of butylated hydroxyanisole (BHA) and n-propyl gallate (n-PG) in fatty foods and cosmetics is proposed. The method is based on different transient retentions of these antioxidants when carried with methanol-water 30:70%, vol/vol, through a flow cell packed to a 25-mm height with C18 silica. Each antioxidant was determined by measuring its intrinsic absorbance at its residence time (40 s at 272 nm for n-PG; 200 s at 288 nm for BHA; calibration: 5.0 to 300.0 μg/mL; RSD: 1.7%) by flow technique and diode-array detector. Resolution of the BHA-n-PG mixture in ratios between 1:10 and 10:1 is possible.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.2003.tb12297.x
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