@article{ref1,
title="Date-rape evidence through fast determination of γ-butyrolactone in adulterated beverages",
journal="Talanta",
year="2021",
author="Gallart-Mateu, D. and de la Guardia, M. and Garrigues, S.",
volume="232",
number="",
pages="122387-122387",
abstract="An infrared spectroscopy (IR) based methodology has been developed to determine γ-butyrolactone (GBL) in adulterated beverages. The proposed method permits the direct screening of GBL in beverages and involves a minimum sample treatment requiring less than 2 min for quantitative determination of GBL. Sensitivity of IR method was improved by using liquid-liquid extraction (LLE) providing detection limits of 0.023 mg g(-1). Accuracy of the proposed methodology was evaluated through the analysis of soft beverages and alcoholic cocktails spiked with GBL at concentration levels ranging from 0.075 to 10 mg g(-1) providing recovery values from 91 to 100%. GBL was determined in twelve blind-spiked beverages, including from mineral water to wine and cocktails. <br><br>RESULTS obtained were statistically comparable to those provided by a liquid chromatography (LC) reference methodology and consistent with the spiked values. Therefore, the use of LLE-FTIR allowed a simple, sensitive and quantitative determination of GBL in soft beverages and alcoholic cocktails, thus evidencing its use for sex submission intention.<p /> <p>Language: en</p>",
language="en",
issn="0039-9140",
doi="10.1016/j.talanta.2021.122387",
url="http://dx.doi.org/10.1016/j.talanta.2021.122387"
}