技術
gas chromatography (GC): suitable
solid phase microextraction (SPME): suitable
測試參數
sample/matrix: Base neutral analytes at 50 ppb and internal standards 25 ppb in 0.1M phosphate buffer, pH 11, with 25% NaCl, 9 mL in 10 mL screw cap vial
SPME fiber: 60 μm Carbowax (PEG) (57354-U)
extraction: 30 min. direct immersion with agitation using CombiPal autosampler
desorption process: 2 min at 250°C, splitless for 0.75 min then opened
column: SLB-5ms, 30 m x 0.25 mm I.D., 0.5μm film
oven: 50°C(2 min) to 130°C @ 12°C/min to 200°C @ 20°C/min to 260°C @ 15°C/min to 310°C @ 20°C/min (4 min)
inj. temp.: Splitless/split with 0.75mm ID liner and Merlin Microseal
detector: ITMS m/z=50-230 @ 0.65 μsec per scan, transfer line 310°C
carrier gas: Helium, 1mL/min constant flow, 8.7 psi
適合性
application for SPME
應用
environmental
food and beverages
法律資訊
分析物
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