FIGURE 9.
Partial LC-ESI mass spectra of curcumin autoxidation products formed in a 1:1 mixture of H2O and H218O (negative ion mode). Note that m/z 401 for 2 is not due to incorporation of 18O but to its molecular weight (402).
Partial LC-ESI mass spectra of curcumin autoxidation products formed in a 1:1 mixture of H2O and H218O (negative ion mode). Note that m/z 401 for 2 is not due to incorporation of 18O but to its molecular weight (402).