Js. Gandara et al., COMPARISON OF GC-MS AND HPLC-UV FOR DETERMINATION OF PROCYMIDONE IN WINE, Journal of agricultural and food chemistry, 41(4), 1993, pp. 674-677
Temperature-gradient capillary gas chromatography-mass spectrometry wi
th selected ion monitoring at m/z 124, 187, and 283 and isocratic reve
rsed-phase high-performance liquid chromatography with ultraviolet (UV
) detection at 207 nm were compared for the determination of residual
levels of procymidone in wine. Previous extraction was carried out usi
ng Sep-Pak C18 cartridges. Calibration plots were linear from 1 to 50
ppm of procymidone. Method detection limits for GC-MS and HPLC-UV were
6 and 10 ppb (w/v), respectively, and percent recoveries were 94.7 +/
- 5.7 % and 96.9 4 +/- 4.3 %. The methods do not give statistically di
fferent values, but GC-MS has the advantage of confirming the identity
of procymidone, thus increasing the reliability of the residual analy
sis.