“…In addition, the reaction of ROOHs with TPP at room temperature is sufficiently fast as studied by Hiatt et al 33 Equation 1 is rapid, stoichiometric, and irreversible, thus used extensively for the analysis of hydrocarbon autoxidation products. 18,19 Measurement of the product alcohol or TPPO allows identification of the original hydroperoxide, and some other researchers have chosen to originally quantify the TPPO product by gravimetric or titration, 23 but later by the use of GC, 12 HPLC, 9 or GC-MS. 10 If an excess amount of TPP is used, then the amount of TPP consumed can be calculated by subtracting, which requires two analyses and tends to be poorly repeatable especially at low ROOH levels. Usually, the resulting alcohol is not so informative for ROOH determination, because the hydrocarbon autoxidation reactions proceed with producing alcohol as a byproduct, which can be interfered with alcohol originated from eq 1 and became a source for error.…”