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. 2018 Oct 12;2(11):1211–1219. doi: 10.1021/acsearthspacechem.8b00123

Table 1. Most Prominent Mass Peaks Measured with NO and NO2 Addition to the Gas Mixturea.

composition mass/Th NO2 additionb NO additionb,c
C5H8O4d e194.0306   x
C5H8O5 210.0250 x x
C6H8O5 222.0255 x x
C5H9O6 227.0283 x x
C6H8O6 238.0205 x x
C6H9O6 239.0283 x x
C6H10O6 240.0361 x x
C5H9O4NO2f 241.0314 x x
C6H9O4NO2 253.0314 x  
C6H8O7 254.0154 x x
C5H9O5NO2 257.0263 x x
C6H9O5NO2 269.0263 x x
C6H8O8 270.0103   x
C6H8O9 271.0181 x  
C5H9O6NO2 273.0212 x x
C6H9O6NO2 285.0212 x x
C6H8O9 286.0052 x x
C6H9O9 287.0130 x x
C6H9O7NO2 301.0161 x x
C6H9O8NO2 317.0110 x x
C6H10O5NO3NO2 332.0219   xg
C6H9O9NO2 333.0059 xg x
C6H10O6NO3NO2 348.0168 xg xg
a

The peaks measured without NOx addition are given in the Supporting Information (Table S1).

b

[NO2] addition was about 400 ppb; [NO] addition was about 200 ppb.

c

Note that the rapid increase of NO2 in the system potentially enables acylperoxynitrate formation, too.

d

Observed product composition in the spectrum.

e

Observed product exact mass in the spectrum (including the mass of NO3– of 61.9884 Th).

f

Nitrogen-containing products have been marked with italic font and the identical compositions observed in both NO and NO2 addition experiments have been additionally marked with bold font.

g

Significantly smaller intensity, but nevertheless present. All masses are given in Thomson units; 1 Th = u/e, where e is elementary charge and u is the atomic mass unit.