Pesticides on Ultra Aqueous C18

LC_FF0490B

	Peaks	t_R (min)	Transition 1	Transition 2
1.	Methamidophos	1.06	142 -> 94	142 -> 125
2.	Acephate	1.27	184.1 -> 143	184.1 -> 125
3.	Omethoate	1.69	214 -> 124.9	214 -> 182.8
4.	Propamocarb	6.61	189.2 -> 102.2	189.2 -> 73.9

Column

Ultra Aqueous C18 (cat.# 9178312)

Dimensions:

100 mm x 2.1 mm ID

Particle Size:

3 µm

Pore Size:

100 Å

Temp.:

35 °C

Standard/Sample

multicomponent pesticide standard

Diluent:

water

Conc.:

1 ppb each pesticide

Inj. Vol.:

10 µL

Mobile Phase

A:

10 mM NH₄OAc in water

B:

10 mM NH₄OAc in methanol

Time (min)	%B
0.00	20
8.0	90
12.0	100
14.8	100
14.9	20

Flow:

0.5 mL/min

Detector	Applied Biosystems/MDS Sciex LC/MS/MS
Model #:	4000 QTRAP
Ion Source:	TurboIonSpray^®
Ion Mode:	ESI+
Ion Spray Voltage:	5 kV
Gas 1:	50 psi (344.7 kPa)
Gas 2:	60 psi (413.7 kPa)
Source Temp.:	600 °C
Instrument	Shimadzu UFLCXR

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