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Table 2 The number of molecular formulae in FA and dirty air at negative ion mode (ESI-)

From: Label-free detection and quantification of ultrafine particulate matter in lung and heart of mouse and evaluation of tissue injury

Element Combination FA (Mean ± SD) Dirty air (PM) (Mean ± SD)
CHO 89.1 ± 6.3 138.8 ± 8.4
CHS 0 ± 0 2.1 ± 0.7
CHN 0 ± 0 0 ± 0
CHOS 25.6 ± 3.3 28.9 ± 3.6
CHNS 2.2 ± 0.7 2.3 ± 0.4
CHON 71.2 ± 9.2 83.5 ± 6.9
CHONS 9.4 ± 1.5 9.3 ± 2.1
Total 196.8 ± 10.8 265.1 ± 13.5