Ljm. Lopez et al., DIFFERENTIAL-PULSE POLAROGRAPHIC-DETERMINATION OF SALICYLALDEHYDE AS ITS GIRARD-P DERIVATIVE, Mikrochimica acta, 124(3-4), 1996, pp. 187-194
A method for the determination of salicylaldehyde (2 x 10(-6)-10(-4) M
) by differential-pulse polarography, based on the in situ formation o
f its Girard-P derivative in aqueous solution at pH 2.5, is proposed.
The relative standard deviation was 1.5% (ten determinations of 4 x 10
(-5) M level). The applicability of this method was checked in synthet
ic samples containing salicyl alcohol, o-aminophenol, 2-methylphenol,
salicylic acid and 4-aminobenzoic acid.