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6种元素ICP-MS混标,1000mg/L溶于5% HNO3
4-硝基苯重氮四氟硼酸盐
乳酸异戊酯
2-溴-5-氟苯胺
100ml PP量杯
PLASTIC HOSE CONNECTION, COMPLETE WITH SCREW CAP, STRAIGHT, GL 14
FILTER FLASK, 250 ML, WITH SCREW THREAD, GL 32/10, SVS-TUBING CONNECT. GL 14, W. ACC. SCREW CAPS
Chlorbenside sulfone
带有2 个筛板的Bond Elut SPE 空柱管
934/AH玻璃纤维滤膜