LC/TOF-MS?????????????

1
LC/TOF-MS????????????? ??????????????(?) ????
? ?? ??
2
??

• ?????????????(PBDE)???????????????????????????????
  ?????????????????????????????????????????
• ?????GC/MS????????????GC??????????????????PBDE????
  ????????????????????????
• ????????LC?????????????????????????????????GC?????
  ???????????????????????
• ????????????????????????????(TOF-MS)????LC/MS???PB
  DE?????????????

??
3
????

1. ????????? (ESI,APCI,APPI)
2. TOF-MS?????????
3. TOF-MS???????
4. ??????????????PBDE????

4
DBDE??????????
??
106
894.2461(M-BrO)-
2.6
2.2
1.8
Intensity, counts
1.4
1.0
0.8
486.5828
0.2
200
300
400
500
600
700
800
900
1000
1100
m/z, amu
????????? ?????????? 886.2554
???? 4000cps
106
894.2461
896.2439
2.4
1.8
892.2481
898.2422
1.2
????????? C1279Br581Br4 ??????????
1.2ppm
890.2504
900.2404
0.6
888.2535
884
888
892
896
900
904
908
912
5
?PBDE??????????????(0.1ppm)
??