NDLI: Adsorption and desorption characteristics of methamphetamine, 3,4-methylenedioxymethamphetamine, and pseudoephedrine in soils

Content Provider	Springer Nature Link
Author	Pal, Raktim Megharaj, Mallavarapu Kirkbride, K. Paul Naidu, Ravi
Copyright Year	2014
Abstract	This work presents, for the first time, information on the adsorption–desorption characteristics of illicit drugs and precursors in soils and an estimation of their potential bioavailability. The experiment was conducted using a batch equilibrium technique for the parent drugs methamphetamine and 3,4-methylenedioxymethamphetamine (MDMA) and the precursor pseudoephedrine in three South Australian soils varying in physiochemical properties. The individual compounds exhibited different adsorption mechanisms in the test soils, and the results fitted better with the Freundlich isotherm model (r $^{2}$ ≥ 0.99). The maximum adsorption capacity was recorded for pseudoephedrine (2,000 μg g$^{−1}$). However, pseudoephedrine recorded lower organic carbon normalized adsorption coefficient values (<250 mL g$^{−1}$), lower magnitudes of Gibb’s free energy change, and higher percent desorption (73–92 %) compared to methamphetamine and MDMA. The results thus showed pseudoephedrine to be the most mobile compound in the soils under study, to have the highest availability for degradation of the three compounds, and to have the highest susceptibility to biotic degradation in test soils.
Starting Page	8855
Ending Page	8865
Page Count	11
File Format	PDF
ISSN	09441344
Journal	Environmental Science and Pollution Research
Volume Number	22
Issue Number	12
e-ISSN	16147499
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-05-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Illicit drug Methamphetamine 3,4-Methylenedioxymethamphetamine Pseudoephedrine Sorption Bioavailability Environment Environmental Chemistry Ecotoxicology Environmental Health Atmospheric Protection/Air Quality Control/Air Pollution Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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