Analysis of 31 Hydrazones of Carbonyl Compounds by RRLC-UV and RRLC-MS(/MS): A Comparison of Methods
Table 4
Parameters of the studied hydrazones obtained by RRLC-MS/MS and RRLC-UV-DAD: molecular weights (MW), MS/MS transitions ( to ), retention times, equations of analytical curves, determination coefficients, detection limits, and ratio between the detection limits.
Hydrazones
MW
(g mol−1)
MS/MS ions
()
Retention time
(min)
Equations of analytical curvesa
Determination coefficient
Detection limits
(pg)
Ratio of DLs
MS/UV
MS/MS
UV
MS/MS
UV
MS/MS
UV
Formaldehyde
210
209/163
2.13
A = 1.8 102C + 8.9 103
A = 7.5 10−2C − 7.0 10−2
0.9714
0.9999
30.9
1.62
19.0
Acetaldehyde
224
223/163
2.81
A = 5.2 102C + 6.1 103
A = 5.4 10−2C + 4.1 10−2
0.9966
0.9998
5.97
2.73
2.19
2,3-Butanedione
266
265/218
3.03
A = 7.5 102C + 7.8 103
A = 3.6 10−2C + 5.8 10−2
0.9975
0.9998
6.18
2.70
2.29
Acetone
238
237/207
3.57
A = 1.4 103C + 1.3 104
A = 3.8 10−2C + 8.5 10−2
0.9961
0.9999
11.1
3.21
3.46
Acrolein
236
235/163
3.85
A = 7.4 102C + 2.4 103
A = 4.4 10−2C + 1.2 10−1
0.9982
0.9999
9.96
6.12
1.63
Propionaldehyde
238
237/163
4.03
A = 1.4 103C + 1.2 104
A = 4.0 10−2C + 6.2 10−2
0.9963
0.9999
14.01
3.75
3.75
Crotonaldehyde
250
249/152
4.59
A = 1.2 103C + 5.5 103
A = 3.3 10−2C + 6.0 10−2
0.9988
0.9998
3.81
4.41
0.86
Butanone
252
251/221
4.71
A = 7.6 103C + 1.1 104
A = 2.5 10−2C + 3.9 10−2
0.9925
0.9997
6.84
3.33
2.06
Methacrolein
250
249/163
4.80
A = 5.4 102C + 1.4 104
A = 3.7 10−2C + 6.1 10−3
0.9991
0.9999
8.40
2.25
3.74
Butyraldehyde
252
251/163
4.84
A = 1.7 103C + 1.7 104
A = 3.4 10−2C + 4.9 10−2
0.9954
1.0000
11.5
3.21
3.59
Salicylaldehyde
302
301/182
4.97
A = 9.1 102C + 7.2 102
A = 1.7 10−2C + 5.6 10−3
0.9984
0.9999
4.77
3.21
1.49
Benzaldehyde
286
285/163
5.20
A = 1.4 103C + 1.5 104
A = 2.3 10−2C + 1.1 10−2
0.9916
0.9999
4.53
5.22
0.86
Cyclohexanone
278
277/247
5.25
A = 1.1 102C + 4.5 103
A = 1.8 10−2C + 1.6 10−3
0.9671
0.9998
18.3
5.52
3.32
2- and 3-pentanone
266
265/235
5.28
A = 4.2 103C + 3.0 104
A = 6.2 10−2C + 2.5 10−2
0.9971
0.9999
9.93
0.84
11.7
Isovaleraldehyde
266
265/163
5.33
A = 2.2 103C + 2.6 104
A = 2.8 10−2C + 6.2 10−2
0.9847
0.9998
5.64
1.92
2.92
Valeraldehyde
266
265/163
5.41
A = 2.0 103C + 1.3 104
A = 2.8 10−2C + 3.4 10−2
0.9991
0.9999
3.51
4.05
0.87
p-Methoxyacetophenone
330
329/282
5.55
A = 2.3 103C + 1.8 104
A = 9.8 10−3C − 8.4 10−3
0.9959
0.9996
7.95
4.59
1.73
Tolualdehydes
300
299/163
5.63
A = 4.6 103C + 4.1 104
A = 6.0 10−2C + 1.5 10−2
0.9962
1.0000
4.50
1.65
2.73
Methyl isobutyl ketone
280
279/249
5.69
A = 2.5 103C + 2.4 104
A = 2.7 10−2C + 3.6 10−2
0.9958
0.9999
7.92
2.91
2.73
Hexaldehyde
280
279/163
5.82
A = 1.7 103C + 1.6 104
A = 2.4 10−2C + 8.1 10−2
0.9945
0.9995
2.13
6.90
0.31
Dimethylbenzaldehyde
314
313/266
5.96
A = 1.8 103C + 1.1 104
A = 1.7 10−2C + 1.4 10−3
0.9928
1.0000
6.90
5.43
1.27
Heptanaldehyde
294
293/163
6.15
A = 1.6 103C + 7.2 103
A = 2.4 10−2C + 8.3 10−3
0.9992
0.9999
10.7
7.35
1.45
Octanaldehyde
308
307/163
6.48
A = 3.7 102C + 2.6 103
A = 4.7 10−3C + 4.5 10−2
0.9863
0.9986
4.65
8.46
0.55
Nonanaldehyde
322
307/163
6.83
A = 1.3 103C + 5.8 103
A = 1.7 10−2C + 1.5 10−2
0.9969
0.9999
5.67
5.16
1.09
Decanaldehyde
336
335/163
7.21
A = 1.2 103C + 9.0 103
A = 1.6 10−2C + 3.7 10−2
0.9981
0.9999
8.70
2.70
3.21
Undecanaldehyde
350
349/163
7.62
A = 9.4 102C + 3.4 103
A = 1.3 10−2C + 1.5 10−2
0.9997
0.9994
8.07
5.61
1.44
Dodecanaldehyde
364
363/163
8.10
A = 6.2 102C + 5.7 103
A = 1.0 10−2C + 3.5 10−2
0.9877
0.9978
9.00
6.00
1.50
Tridecanaldehyde
378
377/163
8.70
A = 6.1 102C + 5.2 103
A = 1.1 10−2C + 3.2 10−2
0.9886
0.9984
9.00
6.00
1.50
= peak area (arbitrary units); = concentrations (μg L−1).
