Analysis of 31 Hydrazones of Carbonyl Compounds by RRLC-UV and RRLC-MS(/MS): A Comparison of Methods

Figure 4

Chromatograms of a mixture of ((a) and (c)) CC-DNPH derivatives from T011/IP-6A Supelco and ((b) and (d)) hydrazones of selected CC synthesized (200 μg L⁻¹) by RRLC-UV-DAD method ((a) and (b)) and by RRLC-APCI-MS/MS method ((c) and (d)) (peak identification: hydrazones of 1: formaldehyde; 2: acetaldehyde; 3: acetone; 4: acrolein; 5: propionaldehyde; 6: crotonaldehyde; 7: butyraldehyde; 8: benzaldehyde; 9: isovaleraldehyde; 10: valeraldehyde; 11: o-, m-, and p-tolualdehyde; 12: hexaldehyde; 13: 2,5-dimethylbenzaldehyde; 14: 2,3-butanedione; 15: butanone; 16: methacrolein; 17: salicylaldehyde; 18: cyclohexanone, 3-pentanone, and 2-pentanone; 19: p-methoxyacetophenone; 20: methyl isobutyl ketone; 21: heptanaldehyde; 22: octylaldehyde; 23: nonanaldehyde; 24: decanaldehyde; 25: undecanaldehyde; 26: dodecanaldehyde; 27: tridecanaldehyde).

(a)

(b)

(c)

(d)