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Marijuana Pesticides by GCxGC on Rxi-5Sil MS and Rtx-200

Marijuana Pesticides by GCxGC on Rxi®-5Sil MS and Rtx®-200

PeaksRT 1 (sec)RT 2 (sec)
1.Methamidophos4802.51
2.Dichlorvos5072.11
3.1,2,3,5-Tetrachlorobenzene6211.12
4.Nicotine6541.39
5.Mevinphos7682.59
6.Acephate7710.17
7.Pentachlorobenzene8851.16
8.o-Phenylphenol8881.21
9.Tebuthiuron8942.06
10.Tetrachloronitrobenzene (Tecnazene)9841.59
11.Omethoate9900.25
12.2,3,5,6-Tetrachloroaniline10291.28
13.α-BHC11281.40
14.Hexachlorobenzene11341.16
15.Pentachloroanisole11521.26
16.Dimethoate11642.46
17.β-BHC11911.64
18.Pentachloronitrobenzene11971.52
19.Pentachlorobenzonitrile12061.69
20.γ-BHC12121.43
21.Chlorothalonil12512.56
22.Anthracene12571.42
23.Diazinon12601.25
24.δ-BHC12811.49
25.Pentachloroaniline13141.30
26.Vinclozolin13712.08
27.Carbaryl13832.06
28.Metalaxyl13981.87
29.Pentachlorothioanisole14311.20
30.Pirimiphos methyl14341.33
31.Methiocarb14371.59
32.Dichlofluanid14462.00
33.Malathion14611.79
34.Chlorpyrifos14731.38
35.Fenthion14791.43
36.DCPA methyl ester (Chlorthal-dimethyl)14821.71
37.Parathion14882.10
38.Cyprodinil15481.20
39.Heptachlor epoxide15571.38
40.Thiabendazole15721.47
41.Captan15781.83
42.Folpet15901.74
43.Procymidone15902.24
44.Endosulfan I16381.41
45.Imazalil16741.88
46.4,4'-DDE16951.17
47.Dieldrin16981.40
48.Myclobutanil17072.22
49.Endrin17401.44
50.Endosulfan II17671.55
51.4,4'-DDD17851.31
52.Oxadixyl17852.94
53.2,4'-DDT17911.16
54.Carfentrazone ethyl18481.87
55.Endosulfan sulfate18512.08
56.Fenhexamid18631.44
57.4,4'-DDT18691.23
58.Propargite19111.31
59.Piperonyl butoxide19261.06
60.Iprodione19621.74
61.Bifenthrin19861.17
62.Dicofol19951.20
63.Fenpropathrin20041.51
64.Phosalone20461.86
65.Azinphos-methyl20491.80
66.cis-Permethrin21901.14
67.Coumaphos21962.33
68.trans-Permethrin22051.18
69.Cypermethrin 122921.49
70.Cypermethrin 223041.54
71.Cypermethrin 323101.53
72.Cypermethrin 423161.58
73.Pyraclostrobin24001.42
74.Fluvalinate 124091.72
75.Fluvalinate 224181.70
76.Difenoconazole 124391.55
77.Difenoconazole 224451.55
78.Deltamethrin24781.49
79.Azoxystrobin24961.70
image
GC_FF1205
ColumnRxi®-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
Rtx®-200 1.3 m, 0.25 mm ID, 0.25 µm (cat.# 15020)
Sample
Diluent:Toluene
Injection
Inj. Vol.:1 µL splitless (hold 1 min)
Liner:Premium 4 mm single taper w/wool (cat.# 23303.1)
Inj. Temp.:250 °C
Purge Flow:40 mL/min
Oven
Oven Temp.:Rxi®-5Sil MS: 80 °C (hold 1 min) to 310 °C at 5 °C/min
Rtx®-200: 85 °C (hold 1 min) to 315 °C at 5 °C/min
Carrier GasHe, corrected constant flow (2 mL/min)
Modulation
Modulator Temp. Offset:20 °C
Second Dimension Separation Time:3 sec
Hot Pulse Time:0.9 sec
Cool Time between Stages:0.6 sec
DetectorTOFMS
Transfer Line Temp.:290 °C
Analyzer Type:TOF
Source Temp.:225 °C
Electron Energy:70 eV
Mass Defect:-20 mu/100 u
Solvent Delay Time:5 min
Tune Type:PFTBA
Ionization Mode:EI
Acquisition Range:45-550 amu
Spectral Acquisition Rate:100 spectra/sec
InstrumentLECO Pegasus® 4D GCxGC-TOFMS
NotesRtx®-200 (cat.# 15020) is a 15 m column. A 1.3 m section was used as the second dimension column.
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