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SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS) df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS)

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS) df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga