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Compound Type DB-5MS Rxi-5Sil MS Difference
Methamidophos
OPP
1222.0
1221.8
0.2
Omethoate
OPP
1585.1
1583.2
1.9
Diazinon
OPP
1788.7
1788.3
0.4
Chlorothalonil
OCP
1789.8
1791.2
-1.4
Malathion
OPP
1959.7
1958.8
0.8
Myclobutanil
ONP
2186.4
2186.6
-0.2
4,4-DDT
OCP
2351.5
2353.7
-2.3
Propargite
OSP
2391.0
2391.1
-0.1
Bifenthrin
Pyr
2465.1
2466.2
-1.0
trans-Permethrin Pyr
2712.2
2714.1
-1.9
Retention Indices for Pesticides on “5” Columns