Qualitative and Quantitative Analysis of Cathinones in Human Urine by SPE-GC-MS.
Fa Yi Xue Za Zhi
; 34(6): 606-610, 2018 Jun.
Article
em En, Zh
| MEDLINE
| ID: mdl-30896097
ABSTRACT
OBJECTIVES:
To propose an alternative solid phase extraction-gas chromatography-mass spectrometry ï¼SPE-GC-MSï¼ method for the sensitive determination of cathinones in human urine samples, plus methodological verification.METHODS:
Human urine samples were concentrated by solid phase extraction ï¼SPEï¼ sorbent and converted into the corresponding heptafluorobutyric acid anhydride derivatives. Methcathinone, 4-methyl methcathinone and 3,4-methylenedioxy-N-methylcathinone were detected by gas chromatography-mass spectrometry ï¼GC-MSï¼. With quantitative analysis by internal standard method, methodological verification was carried out from the aspects of specificity, precision and reco-very rate.RESULTS:
Methcathinone, 4-methyl methcathinone and 3,4-methylenedioxy-N-methylcathinone showed good linearly in the range of 25-200 ng/mL of urine ï¼r>0.99ï¼, with the limits of detection 2.0 ng/mL, limit of quantitation 25.0 ng/mL, both intra- and inter-day coefficients of variation lower than 6.0%, and recovery rates of 98.4%-105.7%.CONCLUSIONS:
he proposed SPE-GC-MS procedure has good accuracy and specificity, can meet the need of qualitative and quantitative analysis of cathinones in the urine of drug abusers, and therefore provide technical support for the detection of cathinone abuse.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Alcaloides
/
Extração em Fase Sólida
Tipo de estudo:
Diagnostic_studies
/
Qualitative_research
Limite:
Humans
Idioma:
En
/
Zh
Ano de publicação:
2018
Tipo de documento:
Article