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Analysis of Melamine and Related Compounds in Infant Formula on Rxi-5Sil MS

GC_FF01095
PeakstR (min)Quant. IonQual. IonQual.IonQual. Ion
1.Cyanuric acid10.258345330346347
2.Ammelide11.073344329345330
3.Ammeline11.760328343329344
4.Melamine12.328327342328343
5.Benzoguanamine14.538316331332330
ColumnRxi-5Sil MS w/5 m Integra-Guard column, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623-124)
Standard/SampleInfant formula fortified at 1 μg/g with melamine and related analogs stock standard (cat.# 33253)
Benzoguanamine (cat.# 33251)
Conc.:0.01 µg/mL as tri-TMS derivatives
Injection
Inj. Vol.:1.0 µL splitless (hold 1 min)
Liner:3.5 mm Gooseneck Splitless w/Wool (cat.# 22286-200.1)
Inj. Temp.:280 °C
Oven
Oven Temp.:75 °C to 320 °C at 15 °C/min (hold 4 min)
Carrier GasHe, constant flow
Flow Rate:1 mL/min
DetectorMS
Mode:SIM
Transfer Line Temp.:290 °C
Ionization Mode:EI
InstrumentShimadzu 2010 GC & QP2010+ MS
Notesall method ions in table, only quantification ions were plotted