Amphetamines
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 hubCONDITIONS
sample/matrix
1 mL urine + 0.7g potassium carbonate in 20 mL headspace vial, equilibrated at 80°C, 30 min
SPME fiber
polydimethylsiloxane, 100 μm (57300-U)
derivatization
methyl bis-trifluoroacetamide (headspace, 0.5 min, ambient)
extraction
headspace, 3-5 min, 80 °C
desorption process
1 min, 270 °C
column
100% methyl polysiloxane, 12.5 m × 0.2 mm I.D., 0.33 μm (Supelco equivalent, Equity-1, 28041-U)
oven
60 °C (1 min) to 140 °C (4 min) at 30 °C/min, then to 276 °C at 20 °C/min, 4 min
inj. temp.
splitless (closed 1 min), 270 °C
detector
MS, full scan