PE 单元素标准品(1,000 g/mL)锌 Zn 2% HNO3 N9300178
Zinc 1 000 μg/mL 2% HN03 Pure 125 mL
商家询价 上海希言科学仪器有限公司
Edwards 45 Vacuum Pump Oil 1 L Bottle
2 mL 11mm Crimp top clear vial 100
Graphite Tubes Integrated Platform Pk.20
Atomax Hollow Cathode 1.5 Lamp - Mg
PTFE Tubing 700 mm
0.5ml样品瓶套装-带滤芯, 250只/盒
萃取池O型圈,50个/包
PTFE/Sil Screw Top w/Slit Vial Pkg.100
美国PE 铀元素标准品 U 2% HNO3 N9303844
Uranium 1 000 μg/mL Pure 125 mL