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21种元素ICP-MS混标,10mg/L溶于2% HNO3
FS COUPLED CAP COLUMN 5M EQUITY-1 X 7M
TARGET 进样针 用于25-100 UL
气相填料
5-甲氧基-2-巯基苯并咪唑
4-Androstene-3,17-Dione (2,3,4-13c3, 98%+)
3-苄氧基-4-甲氧基苯甲醛
STIRRER SHAFT, 7-8 MM O.D., SUITABLE FOR USE PTFE- STIRRING BLADE, WITH PTFE TOGGLE
Process Chemistry, NPT Compression Fitting, Screw, Metric,NPT Size ?”, Bore Size 19mm
己酸丙酯