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Nonylphenol, Bisphenol A, 4-tert-Octylphenol, Nonylphenol Monoethoxylate, and Nonylphenol Diethoxylate on the Rxi-5Sil MS by ASTM D7065-11 (Constant Flow)

PeakstR (min)Conc.
(µg/mL)
On-Column (ng)
1.Acenaphthene-D1013.6252.5
2.4-tert-Octylphenol15.4323.2
3.Nonylphenol15.9–17.016016
4.Phenanthrene-D1017.1252.5
5.4-Nonylphenol18.0323.2
6.Nonylphenol monoethoxylate18.5–20.032032
7.4-Nonylphenol monoethoxylate20.5323.2
8.Bisphenol A20.9323.2
9.Nonylphenol diethoxylate21.0–22.364064
10.Chrysene-D1223.4252.5
image
GC_EV1426
ColumnRxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623)
SampleMethod 525.2 internal standard mix (cat.# 31825)
AccuStandard nonylphenol calibration standard (cat.# M-1626)
Diluent:Dichloromethane
Injection
Inj. Vol.:1.0 µL split (split ratio 10:1)
Liner:Premium 4 mm Precision liner w/wool (cat.# 23305.5)
Inj. Temp.:290 °C
Oven
Oven Temp.:50 °C (hold 2 min) to 320 °C at 10 °C/min (hold 5 min)
Carrier GasHe, constant flow
Flow Rate:1.44 mL/min
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
13.045-5000.8
Transfer Line Temp.:290 °C
Analyzer Type:Quadrupole
Source Type:Extractor
Extractor Lens:9mm ID
Source Temp.:325 °C
Quad Temp.:150 °C
Solvent Delay Time:3.0 min
Tune Type:DFTPP
Ionization Mode:EI
InstrumentAgilent 7890B GC & 5977A MSD
NotesThe use of constant flow, rather than constant pressure, yields a faster analysis and more constant peak widths throughout the chromatogram.
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