<?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%">Céline Duchateau</style></author><author><style face="normal" font="default" size="100%">Kauffmann, Jean-Michel</style></author><author><style face="normal" font="default" size="100%">Michael Canfyn</style></author><author><style face="normal" font="default" size="100%">Stévigny, Caroline</style></author><author><style face="normal" font="default" size="100%">De Braekeleer, Kris</style></author><author><style face="normal" font="default" size="100%">Eric Deconinck</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Discrimination of legal and illegal Cannabis spp. according to</style></title><secondary-title><style face="normal" font="default" size="100%">Drug testing and analysis</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2020</style></year></dates><number><style face="normal" font="default" size="100%">1319</style></number><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Aerial parts containing cannabidiol can be purchased in a legal way but cannabis used&lt;/p&gt;

&lt;p&gt;as recreational drug is illegal in most European countries. Δ9-tetrahydrocannabinol is&lt;/p&gt;

&lt;p&gt;one of the main cannabinoids responsible for the psychotropic effect. European&lt;/p&gt;

&lt;p&gt;Union countries and Switzerland authorize a concentration of THC of 0.2 % and 1.0&lt;/p&gt;

&lt;p&gt;% w/w, respectively, for smoking products and industrial hemp. Public health inspectors&lt;/p&gt;

&lt;p&gt;and law enforcement officers need to check the legality of samples. Therefore&lt;/p&gt;

&lt;p&gt;there is a need for innovative approaches, allowing quality control of these products&lt;/p&gt;

&lt;p&gt;in an easy way and preferably on site. In many countries, cultivation of industrial&lt;/p&gt;

&lt;p&gt;hemp is permitted if the THC content does not exceed 0.2 % w/w. A portable equipment&lt;/p&gt;

&lt;p&gt;could be a useful measuring tool for farmers to check for the THC content at&lt;/p&gt;

&lt;p&gt;regular time. In this work, 189 samples were analysed with a benchtop and a handheld&lt;/p&gt;

&lt;p&gt;NIR device in order to create two classification methods according to European&lt;/p&gt;

&lt;p&gt;and Swiss laws. All samples were also analysed by GC-FID to determine their THC&lt;/p&gt;

&lt;p&gt;concentration. Supervised analysis was applied in order to establish the best model.&lt;/p&gt;

&lt;p&gt;For the first classification, the accuracy was 91% for the test set with the benchtop&lt;/p&gt;

&lt;p&gt;data and 93 % for the test set with the handheld data. For the second classification,&lt;/p&gt;

&lt;p&gt;the accuracies were respectively 91 % and 95 %. The obtained models, hyphenating&lt;/p&gt;

&lt;p&gt;spectroscopic techniques and chemometrics, enable to discriminate legal and illegal&lt;/p&gt;

&lt;p&gt;cannabis samples according to European and Swiss laws.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">12</style></issue><section><style face="normal" font="default" size="100%">1309</style></section></record></records></xml>