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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