Abstract
The general method of determination of hydrogen peroxide (H2O2) posesses difficulty in such as the unstability of H2O2 in the process of the determination or a poor reproducibility of the determined value. For the purpose of modifying the above method, methanol was used as extracting solvent instead of water. H2O2 in noodle was easily extracted with methanol, and the extracted H2O2 was stable. The H2O2 in methanol was determined by the iodometry, and the end-point of titration was clear. The modified method was more superior to the general method in reproducibility and simplicity.