Técnicas para determinación cuali/cuantitativa de drogas de abuso en fluidos biológicos

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

Se han desarrollado varios métodos para determinar drogas de abuso en orina, plasma/suero, bilis, pelo y otros en muestras clínicas y forenses. En este trabajo se discute la importancia de la aplicación de la técnica de cromatografía gas-líquido y espectrometría de masa en sus diferentes tipos, con énfasis en la preparación de la muestra. Anfetaminas, canabinoides, cocaína y benzoílecgonina, morfina y metabolitos, fenciclidina, benzodiazepinas, antidepresivos tricíclicos, barbitúricos, opiatos, anestésicos locales y metadona se han analizado y cuantificado adecuadamente mediante esta metodología.

Translated abstract

A variety of methods have been developed for determination of drugs of abuse in urine, plasm/serum, bilis, hair and others in clinical and forensic samples. Relevance of the application of the technique of gas-liquid chromatography and different types of mass spectrometry are discussed in this paper, being sample preparation emphasized. Amphetamines, cannabinoids, cocaine and benzoylecgonine, morphine and metabolites, phenciclidine, benzodiazepines, tricyclic antidepressants, barbiturates, opiates, local anesthetics and methadone were properly analysed and quantified by means of this methodology.

Related collections

Most cited references 200

Record: found
Abstract: not found
Article: not found

Solid Phase Microextraction: Theory and Practice

J Pawliszyn (1998)

0 comments Cited 33 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: not found
Article: not found

New trends in sample preparation for clinical and pharmaceutical analysis

Hiroyuki Kataoka (2003)

0 comments Cited 32 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Solid-phase microextraction in biomedical analysis.

S. Ulrich (2000)

Chromatographic methods are preferred in the analysis of organic molecules with lower molecular mass (<500 g/mol) in body fluids, i.e., the assay of drugs, metabolites, endogenous substances and poisons as well as of environmental exposure by gas chromatography (GC) and liquid chromatography (LC), for example. Sample preparation in biomedical analysis is mainly performed by liquid-liquid extraction and solid-phase extraction. However, new methods are investigated with the aim to increase the sample throughput and to improve the quality of analytical methods. Solid-phase microextraction (SPME) was introduced about a decade ago and it was mainly applied to environmental and food analysis. All steps of sample preparation, i.e., extraction, concentration, derivatization and transfer to the chromatograph, are integrated in one step and in one device. This is accomplished by the intelligent combination of an immobilized extraction solvent (a polymer) with a special geometry (a fiber within a syringe). It was a challenge to test this novel principle in biomedical analysis. Thus, an introduction is provided to the theory of SPME in the present paper. A critical review of the first applications to biomedical analyses is presented in the main paragraph. The optimization of SPME as well as advantages and disadvantages are discussed. It is concluded that, because of some unique characteristics, SPME can be introduced with benefit into several areas of biomedical analysis. In particular, the application of headspace SPME-GC-MS in forensic toxicology and environmental medicine appears to be promising. However, it seems that SPME will not become a universal method. Thus, on-line SPE-LC coupling with column-switching technique may be a good alternative if an analytical problem cannot be sufficiently dealt with by SPME.