Spectrophotometric determination of benzene in ethanol.
A rapid, simple spectrophotometric method for the detection and determination of benzene in ethanol is described. Thus, using 1 cm cuvettes and applying the first and/or the second derivative methods, benzene can be determined in ethanol over the concentration range of 5-25 p.p.m. with a CV% less than 1% and with a detection limit of 2 p.p.m. This is considered to be an improvement over the method currently given in the British Pharmacopoeia.
Barary
M H
MH
Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Egypt.
Sabry
S M
SM
Wahbi
A A
AA
D001554:Benzene / Q000032:analysis*; D000431:Ethanol / Q000032:analysis*; D013053:Spectrophotometry
D000431:Ethanol; D001554:Benzene