KINETIC VANADIMETRIC ESTIMATION OF D- GLUCOSE

Publication Date : 27/10/2017

DOI : 10.22623/IJAPSA.2017.3115.ECLT6


Author(s) :

Anand G.Fadnis.


Volume/Issue :
Volume 3
,
Issue 10
(10 - 2017)



Abstract :

Abstract Kinetic vanadimetric estimation of D-Glucose in sulphuric acid medium has been carried out after elaborating the kinetic and mechanistic features of this redox indicator reactions which can be expressed as C6H12O6 + 2 V(V) +H2O → C5H10 O5+ 2V (IV)+2H + + HCOOH This reaction followed first order kinetics with respect to initial concentrations of vanadium (V), D-glucose and sulphuric acid under present experimental conditions with the formation of intermediate C- centered free radical and D-arabinose as initial reaction product. The observed decreasing absorbance with time at different initial concentrations of respective D-glucose has been used for the .kinetic estimations adopting (a) Rate constant, (b) variation of absorbance at fixed time (c) variation of time at fixed absorbance of (d) One point and (e) Two point methods using respective calibration plots .The consistency and reproducibility of these results have clearly showed these kinetic vanadimetric estimations of D-glucose can be used as an alternative/additional analytical method to the existing traditional estimation methods in the present day laboratory conditions and also as advance laboratory experiments/student’s projects. • Mailing address : 103 Vishnu Vihar,1053 Khatiwala Tank,Indore -452014


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