Jg. March et al., HYDROLYSIS OF PHYTIC ACID BY MICROWAVE TREATMENT - APPLICATION TO PHYTIC ACID ANALYSIS IN PHARMACEUTICAL PREPARATIONS, Microchemical journal (Print), 59(3), 1998, pp. 413-416
The acid hydrolysis of phytic acid in a Teflon reactor using a domesti
c microwave oven has been studied and compared with other reported pro
cedures. Ln 0.44 M HCl quantitative hydrolysis was achieved with six h
earing stages of 2 min each. A lower yield was obtained with H2SO4 and
HNO3. The analytical use of this hydrolysis to determine phytic acid
by indirect determination of phosphate has been demonstrated by analys
is of three pharmaceutical formulations. No sample pretreatment other
than obtaining a homogeneous suspension was necessary. (C) 1998 Academ
ic Press.