Zp. Zhang et al., SEPARATION AND DETERMINATION OF D-GLUCONIC ACID PRODUCED DURING FERMENTATION BY CAPILLARY ZONE ELECTROPHORESIS, Analytical letters, 29(11), 1996, pp. 2025-2037
A novel method was developed for separation and determination of D-glu
conic acid produced during fermentation by capillary zone electrophore
sis (CZE) with direct UV detection at 214 mm, using selected carrier e
lectrolyte composed of 6 mM potassium biphthalate, 50 mM disodium hydr
ogen phosphate and 15% (v/v) acetonitrile. The effects of concentratio
n of phthalate, phosphate and organic modifier (acetonitrile), as well
as temperature for the separation were investigated. The method is si
mple, inexpensive and will make it very useful in the gluconic acid in
dustry.