Headspace solid-phase micro-extraction gas chromatography method for the determination of methanol in aspartame sweeteners.
Food Addit Contam
; 20(6): 519-23, 2003 Jun.
Article
em En
| MEDLINE
| ID: mdl-12881123
A headspace solid-phase micro-extraction (HS-SPME) method for the extraction and determination of residual methanol in artificial sweeteners by capillary gas chromatography with flame ionization detection (GC-FID) is described. A manual SPME holder with an 85- microm polyacrylate fibre was used. The optimized conditions for methanol extraction by SPME were: sample agitation, absorption temperature of 30 degrees C, absorption time of 10 min, desorption time of 2 min and sample volume in the vial of 400.0 micro l. Under these conditions the calibration graphs were linear in the range 2.50-31.60 mg x l(-1), and the precision was good (relative standard deviation 4.9%). The detection limit was 0.40 mg x l(-1); the quantification limit was 2.06 mg x l(-1).
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aspartame
/
Contaminação de Alimentos
/
Metanol
Limite:
Humans
Idioma:
En
Revista:
Food Addit Contam
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido