Comparison between Different Extraction Methods for Determination of Primary Aromatic Amines in Food Simulant

Table 3

Intra- and interday precision of determination of PAAs in 3% acetic acid.

Compounds	Amount spiked (μgl^−1)	Precision (intraday) RSD	Precision (interday) RSD
2,6-TDA	75	0.115	0.146
	150	0.115	0.278
	300	0.2	0.239
2,4-TDA	75	0.115	0.188
	150	0.173	0.161
	300	0.152	0.215
4,4′-MDA	75	0.058	0.139
	150	0.152	0.273
	300	0.1	0.256
2,4′-MDA	75	0.115	0.115
	150	0.404	0.292
	300	0.058	0.153
2,2′-MDA	75	0.1	0.086
	150	0.152	0.165
	300	0.1	0.1