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GCCHROMATOGRAMS |
PHARMACEUTICAL
Pesticides in Dietary Supplements
DietarySupplement (FinishedProduct)QuEChERSExtractCleanedwithCartridgeSPE
(GCxGC-TOFMSContourPlot)
GC_FF1191
Column
Rxi
®
-5Sil MS 30m, 0.25mm ID, 0.25µm (cat.# 13623)
Rtx
®
-200 1.5m, 0.18mm ID, 0.20µm (cat.# 45001)
Sample
Diluent:
Toluene
Injection
Inj. Vol.:
1µL splitless (hold 1min.)
Liner:
Gooseneck Splitless (4mm) w/Wool (cat.# 22405)
Inj.Temp.:
250 °C
Purge Flow:
40mL/min.
Oven
OvenTemp:
Rxi
®
-5Sil MS: 80 °C (hold 1min.) to 310 °C at 4 °C/min. (hold 1.5min.)
Rtx
®
-200: 90 °C (hold 1min.) to 320 °C at 4 °C/min. (hold 1.5min.)
Carrier Gas
He, constant flow
FlowRate:
1.8mL/min.
Modulation
Modulator
Temp. Offset:
25 °C
SecondDimension
SeparationTime: 4 sec.
Hot PulseTime:
1.2 sec.
CoolTime
between Stages: 0.8 sec.
Detector
TOFMS
Transfer
LineTemp.:
290 °C
AnalyzerType:
TOF
SourceTemp.:
225 °C
Electron Energy: 70 eV
Mass Defect:
-20mu/100 u
Solvent Delay
Time:
4min.
IonizationMode: EI
Acquisition Range: 45 to 550 amu
Spectral
Acquisition Rate: 100 spectra/sec
Instrument
LECO Pegasus 4DGCxGC-TOFMS
Notes
See application note PHAN1251 for extraction and cleanup details. A 1.5m length of the Rtx
®
-200 columnwas trimmed from a
10m column. Columnswere connectedwith aUniversal Press-Tight
®
Connector (cat.# 20429).
GCxGCwithorthogonal Rxi®-5SilMSandRtx®-200columns isapowerful
way tohandlecomplex samples likedietary supplementextracts.
NEW!
Restek is your
complete source
for analyzing
pesticides in
dietary supplements.
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
