<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Guo, Wenbo</style></author><author><style face="normal" font="default" size="100%">Kai Fan</style></author><author><style face="normal" font="default" size="100%">Dongxia Nie</style></author><author><style face="normal" font="default" size="100%">Jiajia Meng</style></author><author><style face="normal" font="default" size="100%">Huang, Qingwen</style></author><author><style face="normal" font="default" size="100%">Junhua Yang</style></author><author><style face="normal" font="default" size="100%">Yuanyuan Shen</style></author><author><style face="normal" font="default" size="100%">Emmanuel Tangni</style></author><author><style face="normal" font="default" size="100%">Zhao, Zhihui</style></author><author><style face="normal" font="default" size="100%">Wu, Yongjiang</style></author><author><style face="normal" font="default" size="100%">Han, Zheng</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Development of a QuEChERS-Based UHPLC-MS/MS Method for Simultaneous Determination of Six Alternaria Toxins in Grapes</style></title><secondary-title><style face="normal" font="default" size="100%">Toxins</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Alternaria toxins</style></keyword><keyword><style  face="normal" font="default" size="100%">Grape</style></keyword><keyword><style  face="normal" font="default" size="100%">modified QuEChERS</style></keyword><keyword><style  face="normal" font="default" size="100%">UHPLC-MS/MS</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">feb 2019</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">100</style></number><volume><style face="normal" font="default" size="100%">11</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A simple and reliable analytical method for the simultaneous determination of alternariol (AOH), altenuene (ALT), tentoxin (TEN), altenusin (ALS), tenuazonic acid (TeA), and alternariol monomethyl ether (AME) in grapes was developed by ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS). A modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) procedure with the extraction by acetonitrile and purification by sodium chloride (0.5 g) and anhydrous magnesium sulfate (0.5 g) was established to recover the six&amp;nbsp;Alternaria&amp;nbsp;toxins. After validation by determining the linearity (R2&amp;nbsp;&amp;gt; 0.99), recovery (77.8–101.6%), sensitivity (limit of detection in the range of 0.03–0.21 μg kg−1, and limit of quantification in the range of 0.09–0.48 μg kg−1), and precision (relative standard deviation (RSD) ≤ 12.9%), the analytical method was successfully applied to reveal the contamination state of&amp;nbsp;Alternaria&amp;nbsp;toxins in grapes. Among 56 grape samples, 40 (incidence of 71.4%) were contaminated with&amp;nbsp;Alternaria&amp;nbsp;toxins. TEN was the most frequently found mycotoxin (37.5%), with a concentration range of 0.10–1.64 μg kg−1, followed by TeA (28.6%) and AOH (26.8%). ALT (10.7%), AME (3.6%), and ALS (5.4%) were also detected in some samples. To the best of our knowledge, this is the first report about the&amp;nbsp;Alternaria&amp;nbsp;toxins contamination in grapes in China.&amp;nbsp;&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><section><style face="normal" font="default" size="100%">87</style></section></record></records></xml>