PDF《Analytical Methods》

s[89] methods or exchange the role of sample and titrant as in case of Lane and Eynons method,[88] where Fehlings solution with known cupric concentra- tion are titrated with sugar solution. Copper based reaction can be also applied for spectrophotometric detection. Cuprous ions can react with neocuproine to produce a yellow complex that strongly absorb the light of

457 nm wavelength. It is obvious that the deter- mination methods based on reducing properties of sugars are strongly in?uenced by........