Determination of organic acids in Vaccinium berry standard reference materials.
Anal Bioanal Chem
; 398(1): 425-34, 2010 Sep.
Article
em En
| MEDLINE
| ID: mdl-20582402
ABSTRACT
Nine organic acids (citric acid, galacturonic acid, glycolic acid, isocitric acid, malic acid, oxalic acid, quinic acid, shikimic acid, and tartaric acid) and two anions (phosphate and sulfate) were determined in a suite of Vaccinium berry-containing dietary supplement standard reference materials (SRMs). Following solvent extraction, three independent methods were utilized in the quantification of these compounds. The first method involved reversed-phase liquid chromatography with ultraviolet absorbance detection at 210 nm and isotope dilution mass spectrometry. The second method utilized ion chromatography with conductivity detection. Finally, gas chromatography with isotope dilution mass spectrometry detection was used following derivatization with N-methyl-N-trifluoroacetamide (MSTFA). The combined data from these methods was used for the assignment of organic acid levels in the seven candidate SRMs.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácidos
/
Suplementos Nutricionais
/
Vaccinium
/
Frutas
Idioma:
En
Revista:
Anal Bioanal Chem
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos