Welcome to the New Restek.com! Take a tour of the new site and feel free to send us your feedback.
Your web browser will no longer be supported by Restek.com as of 30 June 2021.
To avoid any interruption in access or functionality, install a current-generation web browser now. Learn more.

OVIs by Dynamic Headspace and Gerstel MACH on Rtx-WAX (G16)

GC_PH00846
PeaksConcentration
(µg added)
1.Methanol6.00
2.Acetonitrile0.82
3.Dichloromethane1.20
4.trans-1,2-Dichloroethylene1.88
5.Hexane0.58
6.cis-1,2-Dichloroethylene1.88
7.Nitromethane0.10
8.Tetrahydrofuran1.38
9.Chloroform0.12
10.Cyclohexane7.76
11.1,2-Dimethoxyethane0.20
PeaksConcentration
(µg added)
12.Trichloroethylene0.16
13.Methylcyclohexane2.36
14.1,4-Dioxane0.76
15.Pyridine0.40
16.Toluene1.78
17.2-Hexanone0.10
18.Chlorobenzene0.72
19.Ethyl benzene0.74
20.m-Xylene2.60
21.p-Xylene0.61
22.o-Xylene0.39
23.Tetralin0.20
* septum components
ColumnsRtx-WAX (G16) 20 m, 0.18 mm ID, 0.4 µm,
using IP Deactivated Guard Column 5 m, 0.32 mm ID (cat.# 10044)
with Universal “Y” Press-Tight Connector (cat.# 20405)
SampleResidual Solvents Class 2 - Mix A (cat.# 36271)
Residual Solvents Class 2 - Mix B (cat.# 36272)
Diluent:0.5mL DI water/~0.2g sodium sulfate in 20mL headspace vial
Injectionheadspace-trap split (split ratio 20:1)
Headspace-Trap
Instrument:Tekmar HT3
Inj. Temp.:220 °C
Transfer Line Temp.:220 °C
Valve Oven Temp.:220 °C
Oven Temp.:250 °C
Standby flow rate:50 mL/min
Trap Standby Temp:40 °C
Trap Sweep Temp:40 °C
Preheat Mixer:On
Preheat Mixer Time:2.00 min
Preheat Mixing Level:5
Preheat Mixer Stabilize Time:0.50 min
Sample Temp.:80 °C
Sample Equil. Time:15.00 min
Sweep Flow Rate:75 mL/min
Sweep Flow Time:5.00 min
Dry Purge: 10.00 min, flow 100 mL/min @ 25 °C
Desorb Preheat Temp:245 °C
Desorb: 1.00 min @ 250 °C
Trap Bake Temp:260 °C
Trap Bake Time:6.00 min
Trap Bake Flow:450 mL/min
Oven
Oven Temp.:250 °C
Carrier GasHe, constant flow
Flow Rate:0.99 mL/min
DetectorFID @ 250 °C
Make-up Gas Flow Rate:45 mL/min
InstrumentAgilent/HP6890 GC
NotesGerstel Modular Accelerated Column Heater (MACH): 35°C (2 min.) to 60°C at 100°C/min. (hold 1 min.), to 200°C at 40°C/min. (hold 2 min.)