کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1216964 1494133 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
LC–MS/MS method for the quantitation of metabolites of eight commonly-used synthetic cannabinoids in human urine – An Australian perspective
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
LC–MS/MS method for the quantitation of metabolites of eight commonly-used synthetic cannabinoids in human urine – An Australian perspective
چکیده انگلیسی

An LC–MS/MS method for the quantitation of urinary metabolites of eight JWH-type synthetic cannabinoids (SCs) has been developed and validated. Urine samples are subjected to deconjugation using β-glucuronidase, followed by a solvent extraction procedure. Compounds are separated on a reverse-phase HPLC column within a 14 min cycle. Low assay limits are required in order to demonstrate prior exposure to SCs. Matrix effects were studied and proved to be significant for selected analytes, and were challenging to circumvent as isotope-labeled internal standards are not available. An elimination profile from a naïve user following a single smoke of “Kronic” was constructed, showing urinary excretion over 2–3 days with peak concentrations of different metabolites 3–16.5 h after smoking. This method has been developed to process several hundred samples within a high-throughput drugs of abuse laboratory, with growing evidence that the use of synthetic cannabinoid blends is common within the Australian workforce.


► Good sensitivity, enabling tracking of urinary metabolites for several weeks.
► Herbal blend analysis showed suppliers tailoring composition, as in Europe.
► Application of method to urine samples showed appropriate biomarkers were selected.
► Several hundred samples processed, with positive rate as expected.
► Samples from single individual produced informative time-course profile.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volume 897, 15 May 2012, Pages 22–31
نویسندگان
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