P. Hartmann, S. Haswell, M. Grasserbauer
Jan 20, 1994
Citations
0
Influential Citations
10
Citations
Journal
Analytica Chimica Acta
Abstract
Abstract In this work, p -hydroxybenzoic acid hydrazide has been used as a reagent to determine reducing sugars using flow-injection volume, flows and reagent concentration were examined for their optimum conditions. Systems catalysed by bismuth for low analyte concentrations and non-catalysed for higher levels, containing only a single sugar (sampling frequency 60−80 h −1 ) and a system with a longer residence time (sampling frequency 30 h −1 ) in which the different responses of various sugars can be minimised, are described. Samples (fruits and beverages) measured with the latter system in the calibration range 0.08−0.6 g/1 gave a typical R.S.D. of 2%.