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柠檬酸二钠倍半水合物
TEST TUBES, FIOLAX-BOROSILICATE-GLASS, WITH RIM, ROUND BOTTOM, LENGTH 100 MM, O.D.16 MM, MINIMUM
10-羟基癸烯酸纯度标准物质
Agilent Zorbax Bonus-RP柱
冻干粉中肠杆菌科计数质控样
窄口锥形瓶,3000 ml,Boro 3.3,圆口
AcroPak 300 带PTFE膜囊式滤器
LiChroCART 10-2,Superspher 100 RP-18e 4 μm定制柱
KNITTED CAPILLARY DELAY TUBE 10 X 0.5MM ID
zeta-Cypermethrin,10ng/ul 标准品