TITLE

Preconcentration technique for nonylphenol using cellulose cotton with homogenous liquid-liquid extraction for liquid chromatographic analysis

AUTHOR(S)
Takagai, Yoshitaka; Kubota, Toshio; Akiyama, Ryoutaro; Aoyama, Eiji; Igarashi, Shukuro
PUB. DATE
September 2004
SOURCE
Analytical & Bioanalytical Chemistry;Sep2004, Vol. 380 Issue 2, p351
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A powerful preconcentration method for nonylphenol (NP) has been developed for liquid-chromatography by combining the use of cellulose cotton (solid-phase extraction) with homogeneous liquid-liquid extraction. A 100 ml of sample solution was preconcentrated using cotton, and the eluate obtained (acetonitrile; 5 ml) was further preconcentrated to 50 �l within 10 min using a homogeneous liquid-liquid extraction method (volume ratio, 2,000-fold; 100 ml? 50 �l). The sample concentration increases from preconcentration was 1,599-fold, and NP was extracted into the sedimented phase at 80%. The proposed method was applied to high performance liquid chromatography with fluorescence detection (FL/HPLC); the lowest determination limit obtained was 1.0�10-9 mol l-1.
ACCESSION #
14665096

 

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