Organophosphorus pesticides
Materiales
Fibra para SPME
Referencia del producto
Descripción
Precios
Filtro SPME Polidimetilsiloxano (PDMS)
100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, plain red hubcolumna analítica
Referencia del producto
Descripción
Precios
CONDITIONS
sample/matrix
50 ppb each in 1.5 mL saturated salt water, pH 7.2
SPME fiber
polydimethylsiloxane, 100 μm (57300-U)
extraction
20 min immersion with rapid stirring
column
5% phenyl polysiloxane, 30 m × 0.25 mm I.D., 0.25 μm (Supelco equivalent, SLB-5ms, 28471-U)
oven
60 °C (1 min) to 300 °C at 12 °C/min, hold 5 min
inj. temp.
splitless (0.75 mm I.D. liner), 270 °C
detector
MS (m/z = 45-400, 0.6sec/scan)
carrier gas
helium, 30 cm/sec
