GC Analysis of Parabens on SLB^®-5ms after SPME using 50/30 μm DVB/Carboxen/PDMS Fiber

技术

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

试验参数

sample/matrix: parabens, each at 200 ppb in 3 mL water + 25% sodium chloride in a 4 mL vial
SPME fiber: metal fiber assembly coated with 50/30 μm DVB/Carboxen/PDMS (57912-U)
extraction: immersion with stirring, 25 °C (15 min)
desorption process: 260 °C, 2 min
column: SLB-5ms, 20 m × 0.18 mm I.D., 0.36 μm (28576-U)
oven: 60 °C (2 min), 15 °C/min to 300 °C (5 min)
MSD interface: 275 °C
scan range: m/z 40-450
carrier gas: helium, 0.7 mL/min constant
liner: 0.75 mm I.D. SPME

适用性

application for SPME

应用

chemicals and industrial polymers
cleaning products
cosmetics
food and beverages
personal care
pharmaceutical (small molecule)