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Master's Dissertation
Document
Author
Full name
Maria Jose Damas Follador
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2004
Supervisor
Committee
Silva, Ovandir Alves (President)
Marques, Ana Cecília Petta Roselli
Moreau, Regina Lucia de Moraes
Title in Portuguese
Avaliação do uso do suor como matriz biológica para verificar a exposição à cocaína associada ou não à ingestão de bebida alcoólica
Keywords in Portuguese
Análise toxicológica
Cocaína
Drogas de abuso (Determinação)
Suor
Toxicologia social
Abstract in Portuguese
Foi desenvolvido um método para detecção de cocaína e cocaetileno (produto da associação de cocaína e etanol) no suor. Amostras de suor foram coletadas por meio de adesivos PharmChek®. O método se baseou na eluição da cocaína e cocaetileno incorporados no adesivo com tampão acetato, extração dos analitos por microextração em fase sólida (SPME) e identificação por espectrometria de massa associada à cromatografia em fase gasosa (GC/MS). O método foi validado e aplicado em pacientes internados para tratamento da dependência à cocaína. Foram coletadas amostras de urina dos mesmos pacientes para pesquisar benzoilecgonina por enzimaimunoensaio. Cocaína e cocaetileno foram detectados nas amostras de suor até dez dias e oito dias, respectivamente, após a última exposição. Benzoilecgonina foi detectada nas amostras de urina até 4 dias. A concordância entre o relato dos pacientes e os resultados das análises do suor foi de 94% para a cocaína e cocaetileno.
Title in English
Title not available
Keywords in English
Keywords not available
Abstract in English
A method was developed to detect cocaine and cocaethylene (product of the association between cocaine and ethanol) in sweat. Sweat samples were collected by means of a sweat patch device supplied by PharmChekTM. The method was based on the elution of de cocaine and cocaethylene incorporated in the patch with acetate buffer, extraction of the analytes by solid-phase microextraction (SPME) and identification by mass spectrometry associated with gas chromatography (GC-MS). The method was validated and applied in inpatients in treatment to dependence to cocaine. Urine samples were collected from the same inpatients to search benzoyilecgonine by enzyme immunoassay. Cocaine and cocaethylene were detected in sweat samples untill ten days and eight days, respectively, after the last exposure. Benzoyilecgonine was detected in urine samples untill four days. The agreement between the inpatients reports and the sweat analysis results was about 94% for cocaine and cocaethylene.
 
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Publishing Date
2019-10-09
 
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