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CD-WAX气相毛细管色谱柱
HIGH VACUUM STOPCOCK ANGLED TM "WITAFLO", RED, DURAN, PTFE-NEEDLE, BORE 2 MM, LENGTH 210 MM
SINGLE STAGE CGA 590 SMART INDICATING &
Vol. flask BLAUBRAND A conf.cert. Amber, 50 ml, DURAN, NS 12/21, PP-stopper
可读除氧气净化管(GC-4)
4-二甲胺基苯基偶氮苯磺酰氯
70um CW/DVB SPME萃取头,自动,3个/包
N,N-Dimethyloctadecylamine
金枪鱼中多氯联苯(7种PCBs)标准物质