Sigma-Aldrich
Graduated ValumetricTM bottles
Hellma® absorption cuvettes, standard cells, Macro
Hellma® 吸收比色皿,大标准吸收池
Ethyl trans-4-ethoxycinnamate
反-4-乙氧基肉桂酸乙酯
L-Cysteinesulfinic acid monohydrate
L-半胱亚磺酸 一水合物
Methaneseleninic acid
甲亚硒酸
Thermco® deep immersion thermometer
Vacuum filtration assembly replacement parts
Watch glasses
观察镜
Weighted safety shield
用于 Beckman® 多吸收池固定座的窗片TM, Window for Beckman® Multi-Cell MountTM
Aldrich® modified Davies condenser