Determination of 4-alkyl 2,5 dimethoxy-amphetamine derivatives by capillary electrophoresis with mass spectrometry detection from urine samples.
Maria Nieddu, Gianpiero Boatto, Giuseppina Dessì
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences June 1, 2007 DOI: 10.1016/j.jchromb.2007.02.029 via PubMed
Summary
A method using capillary electrophoresis coupled to electrospray ionization-mass spectrometry (CE-ESI-MS) was developed to screen for and quantify three designer drugs—DOM, DOET, and DOPR—in urine samples. A simple solid-phase extraction step cleaned up samples before analysis. The method was validated per international guidelines, with accuracy and precision meeting required limits. Calibration curves from 10 to 1000 ng/mL showed correlation coefficients above 0.996.
Study at a glance
| Characteristics | Method validation study Peer reviewed |
|---|---|
| Citations | 39 |
| Key finding | The CE-ESI-MS method accurately and precisely quantifies DOM, DOET, and DOPR in urine with calibration curves linear from 10 to 1000 ng/mL. |
Abstract
The methylenedioxy-derivatives of amphetamine represent the largest group of designer drugs. The 4-methyl (DOM), -ethyl (DOET) and -propyl (DOPR) derivatives of 2,5-dimethoxy-amphetamine (2,5-DMA) were found to possess quite similar serotonin receptor affinities [R.A. Glennon, D.L. Doot, R. Young, Pharmacol. Biochem. Behav. 14 (1981) 287.]. This paper describes a method to screen for and quantify DOM, DOET and DOPR in urine samples, using capillary electrophoresis coupled to electrospray ionisation-mass spectrometry (CE-ESI-MS). Prior to CE-MS analysis, a simple solid-phase extraction (SPE) was used for sample cleanup. The method was validated according to international guidelines. Data for accuracy and precision were within required limits. Calibration curves were generated ranging from 10 to 1000 ng/mL and correlation coefficients always exceeded 0.996.