"Abstract A solid-phase extraction (SPE) method was. developed for extraction and analysis of six phthalate esters. in wine samples using Carbograph 1 sorbent. The SPE. procedure allowed efficient recovery of the investigated. phthalates ranging between 78% and 105% with a relative. standard deviation (RSD) ≤6.5 for an ethanolic phthalic. acid ester (PAE) standard solution and between 73–71%. and 96–99% with a RSD ≤8.4 for red wine samples spiked. with 20 and 50 ng mL−. 1 of PAE, respectively. The. adsorption isotherms and breakthrough curves for Carbograph. 1\/water solution were reported. Gas chromatography. coupled with an ion-trap mass spectrometer detector (GC\/. IT-MS) was used for analysis. The instrumental analytical. protocol was found to yield a linear calibration in the range. 0.01-10.0 μg mL−1 with R2 values ≥0.9992. The limits of. detection in GC\/IT-MS (SIM mode) vary between 0.2 and. 14 ng mL−1 (RSD ≤5.6) whereas the limits of quantification. range between 0.5 and 25 ng mL−1 (RSD ≤5.9); the intra- and. inter-day repeatabilities calculated as RSD for wine samples,. were between 0.9–7.8 and 1.0–10.5, respectively. The. analytical method developed was applied to several commercial. wine samples. Furthermore, the investigated methods. are simple, reliable, reproducible, and not expensive."
|Digital Object Identifier (DOI):||10.1007/s00216-011-5551-9|
|Codice identificativo ISI:||WOS:000298645900036|
|Codice identificativo Scopus:||2-s2.0-84856208933|
|Appare nelle tipologie:||1.1 Articolo in rivista|