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Thursday 15 October 2015

Application of chemometrics for identification of psychoactive plants (Article)

Volume 72, Issue 3, 1 May 2015, Pages 517-525


National Medicines Institute, Chełmska 30/34, Warszawa, Poland
Department of Pharmacognosy and Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS, United States

Abstract

Drug market changes dynamically causing many analytical challenges for police experts. Among illicit substances there are synthetic designer products but also herbal material. Plant material is usually in finecut or powdered form, thus difficult to identify. For such fragmented material classic taxonomical identification methods using anatomical and morphological features of the plant cannot be employed. The aim of the study was to develop an identification method of the powdered material with employment of multidimensional data analysis techniques. Principal Component Analysis (PCA) was chosen as a method of data exploration. The study was conducted on four plants controlled in Poland: Salvia divinorum, Mitragyna speciosa, Psychotria viridis and Calea zacatechichi. The compatibility of grouping features of selected species was compared in two variants: chemical and elemental composition. In a first variant, GC-MS chromatograms of extracts were analyzed and in the second, elements composition with the AAS and the ICP-MS techniques. The GC-MS method, based on the qualitative interpretation of results, allows for clear differentiation of samples with regard to their species affiliation. Even the plants belonging to the same family Rubiaceae, P. viridis and M. speciosa formed homogeneous and clearly separated clusters. Additionally, the cluster analysis was performed, as a method confirming sample grouping. © 2015, Polish Pharmaceutical Society. All rights reserved.

Author keywords

Chemometrics; Elements; Gas chromatography; Identification; Narcotic plants

Indexed keywords

EMTREE drug terms: calcium; lanthanide; mitragynine; salvinorin A
EMTREE medical terms: Article; Calea zacatechichi; chemometrics; cluster analysis; controlled study; data analysis; mass fragmentography; Mitragyna; Mitragyna speciosa; nonhuman; phytochemistry; plant identification; Poland; principal component analysis; psychoactive plant; Psychotria; Psychotria viridis; Rubiaceae; Salvia divinorum
Chemicals and CAS Registry Numbers: calcium, 7440-70-2, 14092-94-5; mitragynine, 4098-40-2
ISSN: 00016837 CODEN: APPHASource Type: Journal Original language: English
Document Type: Article
Publisher: Polish Pharmaceutical Society