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23种元素ICP-MS混标,100mg/L溶于2% HNO3
5-碘-2-甲基苯胺
填充柱 Porapak P 80/100
SPATULA, DOUBLE, CHATTAWAY, MADE OF STAINLESS STEEL, BENT, 150 MM LENGTH, SPATULA 7 X 40 MM
SH-Rt-Alumina BOND/KCl Columns
TBA(硫代巴比妥酸)
SE-30毛细管柱
Exendin Fragment 9-39
Process Chemistry, Replacement Seal Pack, Compression Fitting, Imperial,Bore Size 9?16”
RoHS检测X荧光分析用变形铝合金中铅、镉、汞成分