Screening and determination of sibutramine in adulterated herbal slimming supplements by HPTLC-UV densitometry.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
; 31(1): 15-20, 2014.
Article
en En
| MEDLINE
| ID: mdl-24215519
The adulteration of herbal supplements is of growing importance, especially when they contain undeclared compounds like sibutramine that are unsafe drugs. Sibutramine was withdrawn from US and European markets in 2010. In this study, an HPTLC-UV densitometric method was developed for the quantification of sibutramine in herbal diet foods. Sample extracts were directly applied onto HPTLC silica gel plates and separated with a mobile phase made of a toluene-methanol mixture. Sibutramine was quantified at 225 nm and its unequivocal identification was confirmed by MS using a TLC-MS interface. During two surveys, 52 weight loss supplements obtained via the Internet were screened. Half of those were adulterated with sibutramine at amounts reaching up to 35 mg per capsule. The results of this validated HPTLC method were compared with those obtained by HPLC-UV and HPLC-MS/MS. The results were not significantly different with the three methods.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Depresores del Apetito
/
Contaminación de Alimentos
/
Suplementos Dietéticos
/
Ciclobutanos
Tipo de estudio:
Diagnostic_studies
/
Screening_studies
Límite:
Humans
Idioma:
En
Revista:
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
Asunto de la revista:
CIENCIAS DA NUTRICAO
Año:
2014
Tipo del documento:
Article
País de afiliación:
Suiza
Pais de publicación:
Reino Unido