A Simple Spectrophotometric Method for the Determination of Thiobarbituric Acid Reactive Substances in Fried Fast Foods

Table 1

Intraday and interday precision of the spectrophotometric TBARS method.

Concentration	Mean concentration (µM/g)
	Intraday precision ()					Interday precision ()
	Morning	Noon	Evening	Mean	% RSD	Day 1	Day 2	Day 3	Mean	% RSD
0.1	0.292	0.325	0.366	0.327	11.3	0.353	0.325	0.385	0.354	8.4
0.4	0.629	0.545	0.677	0.617	10.8	0.629	0.677	0.737	0.681	7.9
0.8	1.174	0.926	0.956	0.948	2.03	1.172	0.926	0.962	1.02	13.1