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Residual Solvents on Rxi-624Sil MS via HS-Syringe-GC-HES-MS

PeakstR (min)Conc.
(µg/mL)
1.Propane1.1410
2.Isobutane1.3010
3.n-Butane1.4510
4.Methanol1.6910
5.n-Pentane2.3010
6.Ethanol2.4510
7.Acetone2.9110
8.Isopropanol3.1910
9.Acetonitrile3.3110
10.n-Hexane4.2310
11.Tetrahydrofuran5.2910
12.Chloroform5.6910
13.Carbon tetrachloride5.7010
14.Benzene5.9110
15.n-Heptane6.2510
16.Toluene8.0310
17.m-Xylene10.0610
18.p-Xylene10.0610
19.o-Xylene10.3910
20.Solvent (N,N-dimethylacetamide [DMA])10.64
image
GC_GN1197
ColumnRxi-624Sil MS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 13868)
Sample
Diluent:RO water
Conc.:10 µg/mL
Injection
Inj. Vol.:500 µL headspace-syringe split (split ratio 100:1)
Liner:Topaz 0.75 mm ID straight/SPME inlet liner (cat.# 23434)
Inj. Temp.:280 °C
Headspace-Syringe
Split Vent Flow Rate:3 mL/min
Instrument:PAL RTC
Syringe Temp.:135 °C
Sample Temp.:85 °C
Sample Equil. Time:2 min
Inj. Speed:500 µL/sec
Oven
Oven Temp.:30 °C (hold 3 min) to 85 °C at 15 °C/min (hold 2 min) to 250 °C at 35 °C/min (hold 2 min)
Carrier GasHe, constant flow
Flow Rate:2.0 mL/min
Linear Velocity:51 cm/sec
DetectorHES-MS
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
1029-4506.4
Transfer Line Temp.:280 °C
Analyzer Type:Quadrupole
Source Type:HES
Aperture Size:6 mm ID
Source Temp.:350 °C
Quad Temp.:200 °C
Electron Energy:70 eV
Solvent Delay Time:0 min
Tune Type:PFTBA
Ionization Mode:EI
InstrumentAgilent 7890B GC & 5977B MSD
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