2 /
2. 5
2
. 30g ASE
GPC 1. 0 mL GC /MS
5
μ
g /L
3.
MS
. 84%
.
3
Table 3 Detection results of real soil samples
1
ρ
/
μ
g /L
ρ
/
μ
g /L /%
2
ρ
/
μ
g /L
ρ
/
μ
g /L /%
α
- 3. 62 7. 93 86. 2 2. 42 6. 65 84. 6
β
- 1. 45 5. 69 84. 7 1. 57 5. 83 85. 2
2. 84 7. 23 87. 8 1. 98 6. 40 88. 3
3
/
.
.
1 .
J . 1996 4 1 41 - 49.
2 . - -
J .
2010 29 2 19 - 22.
3 . GC/ MS
J . 2003 24 123 -124.
4 . - GC /MS
16 J .
2010 22 6 51 - 54.
5 .
J . 2009
21 6 39 - 43.
6 .
J . 2004 23
4 168 - 172.
7 . 、 、
J . 2009 48 7 515 - 518.
8 .
- -
J . 2010 29 3 376 - 382.
9 .
J . 2007 24 6
1084 - 1089.
Determination of Endosulfan and Its Metabolite in Soil Using Gas
Chromatography - mass Spectrometry with Negative Ion Chemical Ionization
MIAO Jian - jun
1
WANG Yan - guang
2
1. Environmental Monitoring Center of Nantong Nantong 226006 China 2. Jinling High School Nanjing 210008 China
Abstract A gas chromatography - negative ion chemical ionization mass spectrometry GC /MS - NCI was developed for the rapid
determination of endosulfans and its metabolite in soil samples. The soil sample was pretreated with n - hexane and then analyzed by
GC / MS - NCI . External standard calibration was used the selective ions of endosulfan and endosulfan sulfate were m / z 406 408
404 372 and m /z 386 384 352 respectively. The detection limit was 0. 02 ~ 0. 03
μ
g /kg. The recoveries were in the range of 83.
6% ~ 86. 4% with the relative standard deviations less than 5% . The method proposed is efficient accurate and sensitive which
could meet the requirements for determining endosulfans in soil.
Key words
α
- endosulfan
β
- endosulfan endosulfan sulfate gas chromatography - negative ion chemical ionization mass
spectrometry GC / MS - NCI soil
Classifying number
O657. 33
311