[Determination of six p-hydroxybenzoic acid esters in laver (nori) by HPLC].
A rapid and simple method was developed for simultaneous determination of methyl, ethyl, isopropyl, npropyl, isobuthyl and n-buthyl p-hydroxybenzoic acid esters (PHBA-Es) in laver by HPLC. Six PHBA-Es were extracted from laver with n-hexane-ethyl acetate (1:1) by shaking. The extract was evaporated. The residue was dissolved in methyl alcohol and determined by HPLC. Recoveries of six PHBA-Es spiked in laver were 93.6-101.2% at the level of 2 micrograms/g.
Kawasaki
Yoko
Y
yoko@nihs.go.jp
Yomota
Chikako
C
Tanamoto
Kenichi
K
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D010226:Parabens / Q000032:analysis*; D012624:Seaweed / Q000737:chemistry*
D010226:Parabens