Fast Analysis of 3-MCPD and 2-MCPD on Rxi-17Sil MS

Injection
Column	Rxi-17Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 14102)
Standard/Sample	See notes
Diluent:	Isooctane
Inj. Vol.:	1 µL PTV split (split ratio 10:1)
Liner:	Topaz 2.0 mm ID straight inlet liner w/wool (cat.# 23314)
Inlet Temp. Program:	120 °C to 165 °C at 300 °C/min (hold 10 min) to 320 °C at 300 °C/min (hold 8 min)
Oven
Oven Temp.:	120 °C (hold 0.5 min) to 200 °C at 18.5 °C/min to 330 °C at 35 °C/min
Carrier Gas	He, constant flow
Flow Rate:	1 mL/min

Detector	MS
Mode:	SIM
SIM Program:	147, 150, 196, 201 m/z, 50 ms dwell
Transfer Line Temp.:	320 °C
Analyzer Type:	Quadrupole
Source Type:	Inert
Source Temp.:	230 °C
Quad Temp.:	150 °C
Ionization Mode:	EI
Instrument	Agilent 7890A GC & 5975C MSD
Sample Preparation	Standards were derivatized with 20 µL phenylboronic acid (saturated solution in diethyl ether), dried, and then reconstituted in 1 mL isooctane. Final concentrations are given in the peak table.

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