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PubMed · 8768940

[Stimulants].

I Paclt·J Florian
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Abstract

The authors present a comprehensive account of stimulants from chemical structure to clinical use. They analyze in detail the function and pharmacokinetic properties of stimulants but also their clinical and undesirable side-effects. The section on the interaction of stimulants and other drugs and other types of treatment is very important. The second part of the paper deals with indications and contraindications of stimulants, incl. the possible risk of the development of dependence. There are many indications for stimulants in clinical (in particular paedopsychiatric) practice.

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Central Nervous System StimulantsHumansEnglish AbstractJournal ArticleReview

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BibTeXRIS

I Paclt, J Florian. 1996. [Stimulants].. https://pubmed.ncbi.nlm.nih.gov/8768940/

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Solid phase micro-extraction coupled with ion mobility spectrometry for the analysis of ephedrine in urine.

Quantitative solid phase micro-extraction (SPME) coupled with ion mobility spectrometry is demonstrated using the analysis of ephedrine in urine. Since its inception in the 1970's ion mobility spectrometry (IMS) has evolved into a useful technique for laboratories to detect explosives, chemical warfare agents, environment pollutants and, increasingly, for detecting drugs of abuse. Ephedrine is extracted directly from urine samples using SPME and the analyte on the fiber is heated by the IMS desorber unit and vaporized into the drift tube. The analytical procedure was optimized for fiber coating selection, extraction temperature, extraction time, sample pH, and analyte desorption temperature. The carryover effects, ion fragmentation characteristics, peak shapes, and drift times of ephedrine were also evaluated based on the direct interfacing of SPME to IMS. A limit of detection of 50 ng/mL of ephedrine in urine and a linear range of 3 orders of magnitude were obtained, showing that SPME-IMS compares well to other techniques for ephedrine and drug analysis presented in the literature.

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