Mode

Source temperature

tr
(min)

%
m/z 111/112

%
m/z
125/112

%
m/z
182/112

 

 

 

 

 

 

Scan

230

15.20

25

15

2.1

 

250

15.19

23

16

2.0

 

270

15.19

27

17

1.4

 

290

15.19

25

15

1.6

Mean

 

15.19

25

16

1.8

SD

 

0.00

2

1

0.4

RSD%

 

0.01

6.79

7.66

20.22

 

 

 

 

 

 

SIM

230

15.19

24

15

b

 

250

15.19

25

16

b

 

270

15.19

26

15

b

 

290

15.19

27

16

b

Mean

 

15.19

25

15

 

SD

 

0.00

1

1

 

RSD%

 

0.00

5.04

3.84

 

am/z 182 not monitored in SIM mode
Table 8: Initial scan and SIM mass spectral analysis of GSM by purge-and-trap: 100 ng/L composite standard in MQ water.