class="Serp__item__snippet--34vQF">[Show full abstract] forensic toxicology: clonazepam, desalkylflurazepam, diazepam, flunitrazepam, lorazepam, midazolam, nordiazepam and oxazepam. The sample pre-treatment involved a liquid-liquid extraction of blood samples by n-butyl chloride. The separation was carried out in...