EN 14110: GC Analysis of Methanol Impurity in Biodiesel on Equity^™-1 after SPME using 85 μm Polyacrylate Fiber

技术

gas chromatography (GC): suitable
solid phase microextraction (SPME): suitable

试验参数

sample/matrix: 2 g of B100 biodiesel containing 0.01% methanol and 0.0785% 2-propanol in a 4 mL vial
SPME fiber: PK3 SPME ASSY 85UM POLYACRYLATE FS 24GA MAN (WHITE) (57304)
extraction: headspace, 60 °C for 5 min
desorption process: 250 °C for 0.75 min
column: Equity-1, 30 m x 0.32 mm I.D., 1.0 μm (28057-U)
oven: 50 °C
inj. temp.: 250 °C
detector: FID, 200 °C
carrier gas: helium, 30 cm/sec
liner: 0.75 mm I.D., SPME type, straight design (unpacked)

适用性

application for SPME

应用

biofuels
environmental