Haloacetic Acids & Dalapon by EPA Method 552.2 on Rtx-CLPesticides & Rtx-CLPesticides2

	Peaks	Conc. (µg/mL)
1.	Methyl monochloroacetate	1.2
2.	Methyl monobromoacetate	0.8
3.	Methyl dichloroacetate	1.2
4.	Dalapon methyl ester	2
5.	Methyl trichloroacetate	0.4
6.	1,2,3-Trichloropropane (IS)	4

	Peaks	Conc. (µg/mL)
7.	Methyl bromo(chloro)acetate	0.8
8.	Methyl bromodichloroacetate	0.8
9.	Methyl dibromoacetate	0.4
10.	Methyl chlorodibromoacetate	2
11.	Methyl 2,3-dibromopropionate (SS)	2
12.	Methyl tribromoacetate	4

GC_EV01006

Columns	Rtx-CLPesticides2 30 m, 0.32 mm ID, 0.25 µm (cat.# 11324)
	and Rtx-CLPesticides 30 m, 0.32 mm ID, 0.32 µm (cat.# 11141)
	using Rxi guard column 5 m, 0.32 mm ID (cat.# 10039)
	with deactivated universal “Y” Press-Tight connector (cat.# 20405-261)
Sample	Haloacetic acid methyl ester mix #2 (cat.# 31647)
	Dalapon methyl ester (cat.# 32057)
	Methyl-2,3-dibromopropionate (cat.# 31656)
	1,2,3-Trichloropropane (cat.# 31648)
Diluent:	Methyl tert-butyl ether (MTBE)
Injection
Inj. Vol.:	1.0 µL splitless (hold 0.75 min)
Liner:	Cyclo double taper (4 mm) (cat.# 20896)
Inj. Temp.:	250 °C
Oven
Oven Temp.:	35 °C (hold 4 min) to 250 °C at 15 °C/min (hold 5 min)
Carrier Gas	He, constant flow
Linear Velocity:	25 cm/sec
Detector	Micro-ECD @ 300 °C
Notes	This chromatogram was obtained using an Agilent micro-ECD. To obtain comparable results, you will need to employ a micro-ECD in addition to confirmational dual columns connected to a 5-meter guard column using a “Y” Press-Tight connector.

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