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(S)-(-)-3-二甲基氨基吡咯烷二盐酸盐
16种元素ICP-MS混标,溶于2% HNO3
EXTRACTION THIMBLES, MADE OF FAT-FREE FILTER PAPER, FOR EXTRACTOR CAPACITY 30ML, I.D. 22 MM, HEIGHT
套装 15X45 样品瓶 /旋盖/钳口盖-未组装 100 4ML透明
锥形磨口瓶塞,Boro 3.3 玻璃,29/32,六角形,空心
BURETTES, CLASS B, WITH SHORT LINE GRADUATION, WITH ST-PTFE PLUG, 25 ML, CLEAR-GLASS
220 VOLT VERSAFLASH HTFP PUMP, ASSEMBLED
Presep? Luer接头(公接头)
LiChroCART 250-10,LiChrospher 100 RP-18 10μm定制柱
气进样针