Journal of Spectroscopy / 2015 / Article / Tab 4

Research Article

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 curvesaDetermination coefficient Detection limits (pg) Ratio of DLs MS/UV
MS/MSUVMS/MSUVMS/MSUV

Formaldehyde210209/1632.13A = 1.8 102C + 8.9 103A = 7.5 10−2C − 7.0 10−20.97140.999930.91.6219.0
Acetaldehyde224223/1632.81A = 5.2 102C + 6.1 103A = 5.4 10−2C + 4.1 10−20.99660.99985.972.732.19
2,3-Butanedione266265/2183.03A = 7.5 102C + 7.8 103A = 3.6 10−2C + 5.8 10−20.99750.99986.182.702.29
Acetone238237/2073.57A = 1.4 103C + 1.3 104A = 3.8 10−2C + 8.5 10−20.99610.999911.13.213.46
Acrolein236235/1633.85A = 7.4 102C + 2.4 103A = 4.4 10−2C + 1.2 10−10.99820.99999.966.121.63
Propionaldehyde238237/1634.03A = 1.4 103C + 1.2 104A = 4.0 10−2C + 6.2 10−20.99630.999914.013.753.75
Crotonaldehyde250249/1524.59A = 1.2 103C + 5.5 103A = 3.3 10−2C + 6.0 10−20.99880.99983.814.410.86
Butanone252251/2214.71A = 7.6 103C + 1.1 104A = 2.5 10−2C + 3.9 10−20.99250.99976.843.332.06
Methacrolein250249/1634.80A = 5.4 102C + 1.4 104A = 3.7 10−2C + 6.1 10−30.99910.99998.402.253.74
Butyraldehyde252251/1634.84A = 1.7 103C + 1.7 104A = 3.4 10−2C + 4.9 10−20.99541.000011.53.213.59
Salicylaldehyde302301/1824.97A = 9.1 102C + 7.2 102A = 1.7 10−2C + 5.6 10−30.99840.99994.773.211.49
Benzaldehyde286285/1635.20A = 1.4 103C + 1.5 104A = 2.3 10−2C + 1.1 10−20.99160.99994.535.220.86
Cyclohexanone278277/2475.25A = 1.1 102C + 4.5 103A = 1.8 10−2C + 1.6 10−30.96710.999818.35.523.32
2- and 3-pentanone266265/2355.28A = 4.2 103C + 3.0 104A = 6.2 10−2C + 2.5 10−20.99710.99999.930.8411.7
Isovaleraldehyde266265/1635.33A = 2.2 103C + 2.6 104A = 2.8 10−2C + 6.2 10−20.98470.99985.641.922.92
Valeraldehyde266265/1635.41A = 2.0 103C + 1.3 104A = 2.8 10−2C + 3.4 10−20.99910.99993.514.050.87
p-Methoxyacetophenone330329/2825.55A = 2.3 103C + 1.8 104A = 9.8 10−3C − 8.4 10−30.99590.99967.954.591.73
Tolualdehydes300299/1635.63A = 4.6 103C + 4.1 104A = 6.0 10−2C + 1.5 10−20.99621.00004.501.652.73
Methyl isobutyl ketone280279/2495.69A = 2.5 103C + 2.4 104A = 2.7 10−2C + 3.6 10−20.99580.99997.922.912.73
Hexaldehyde280279/1635.82A = 1.7 103C + 1.6 104A = 2.4 10−2C + 8.1 10−20.99450.99952.136.900.31
Dimethylbenzaldehyde314313/2665.96A = 1.8 103C + 1.1 104A = 1.7 10−2C + 1.4 10−30.99281.00006.905.431.27
Heptanaldehyde294293/1636.15A = 1.6 103C + 7.2 103A = 2.4 10−2C + 8.3 10−30.99920.999910.77.351.45
Octanaldehyde308307/1636.48A = 3.7 102C + 2.6 103A = 4.7 10−3C + 4.5 10−20.98630.99864.658.460.55
Nonanaldehyde322307/1636.83A = 1.3 103C + 5.8 103A = 1.7 10−2C + 1.5 10−20.99690.99995.675.161.09
Decanaldehyde336335/1637.21A = 1.2 103C + 9.0 103A = 1.6 10−2C + 3.7 10−20.99810.99998.702.703.21
Undecanaldehyde350349/1637.62A = 9.4 102C + 3.4 103A = 1.3 10−2C + 1.5 10−20.99970.99948.075.611.44
Dodecanaldehyde364363/1638.10A = 6.2 102C + 5.7 103A = 1.0 10−2C + 3.5 10−20.98770.99789.006.001.50
Tridecanaldehyde378377/1638.70A = 6.1 102C + 5.2 103A = 1.1 10−2C + 3.2 10−20.98860.99849.006.001.50

= peak area (arbitrary units); = concentrations (μg L−1).