“…salicylaldehyde, p-hydroxybenzaldehyde, and anisaldehyde, results for these being only semi-quantitative. Jolles determined furfural and pentoses (IS) and acetone (12,29); Meyer (25,26) recommends the method for several aldehydes in addition to those mentioned, but without evidence that its applicability has been tested. The bisulfite method has been used for estimation of lactic acid via acetaldehyde (2, S, 9,10), and of some unsaturated aldehydes (11,15,26).…”