技術
gas chromatography (GC): suitable
solid phase microextraction (SPME): suitable
測試參數
sample/matrix: Pesticides at 10 ppb in 0.1M phosphate buffer, pH 7, 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
column: SLB-5ms, 30 m x 0.25 mm I.D., 0.5μm film
desorption process: 2 min. at 250°C, splitless for 0.75 min. then opened
oven: 60°C(1 min) to 150°C @ 25°C/min to 230°C @ 5°C/min to 310°C @ 18°C/min (3 min)
inj. temp.: Splitless/split with 0.75mm ID liner and Merlin Microseal
detector: ITMS m/z=60-450 @ 0.9 μsec per scan, transfer line 310°C
carrier gas: Helium, 1mL/min constant flow
適合性
application for SPME
應用
agriculture
chemicals and industrial polymers
environmental
food and beverages
法律資訊
分析物
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