Mode

Source temperature

tr
(min)

% m/z
107/95

% m/z
108/95

% m/z
150/95

% m/z
168/95

tr
(min)

% m/z
107/95

% m/z
108/95

 

 

 

 

 

 

 

 

 

 

Scan

230

11.99

42

28

8

1.8

-

-

-

 

250

11.99

33

27

8

1.7

-

-

-

 

270

11.99

35

32

4

2.2

-

-

-

 

290

11.99

44

36

6

0.8

-

-

-

Mean

 

11.99

39

31

7

1.6

-

-

-

SD

 

0

6

4

2

0.6

-

-

-

RSD%

 

0

14.48

12.65

24.62

35.41

-

-

-

 

 

 

 

 

 

 

 

 

 

SIM

230

11.99

38

38

a

 

9.16

446

81

 

250

11.99

37

30

a

 

9.16

255

56

 

270

11.99

35

31

a

 

9.16

279

62

 

290

11.99

44

32

a

 

9.16

275

51

Mean

 

11.99

37

33

 

 

9.16

314

63

SD

 

0

6

3

 

 

0

89

13

RSD%

 

0

14.80

10.20

 

 

0

28

20.95

a m/z 150 not monitored in SIM mode
Table 7: Initial scan and SIM mass spectral analysis of 2-MIB by purge-and-trap: 100 ng/L composite standard in MQ water.