Study on Dicarboxylic Acids in Aerosol Samples with Capillary Electrophoresis

Table 2

The intraday and interday results of the aerosol samples separated and determined under optimized capillary electrophoresis conditions (see Table 1).

Dicarboxylic acids	Intraday RSD% (𝑛=6)		Interday RSD% (𝑛=9)
	Migration time; 𝑡𝑀	Peak area; Area	Migration time; 𝑡𝑀	Peak area; Area
Oxalic acid (C2)	0.18	3.56	0.38	3.11
Malonic acid (C3)	0.0	7.50	0.15	5.62
Succinic acid (C4)	0.03	8.95	0.31	6.63
Glutaric acid (C5)	0.04	3.99	0.42	2.78
Adipic acid (C6)	0.05	5.86	0.45	5.20
Pimelic acid (C7)	0.05	10.0	0.50	8.70
Suberic acid (C8)	0.05	5.89	0.53	4.67
Azelaic acid (C9)	0.04	5.76	0.51	4.93
Sebacic acid (C10)	0.08	8.06	0.43	7.36
Trichloroacetic acid (TCA, IS2)	0.16	19.7	0.76	17.5