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棕榈酸辛酯
顺式-1,2-芪双硼酸频哪醇酯
AA Grade Samarium, 25 mL 1,000 mg/L in 2% HNO3
STAINING JAR WITH OVERLAPPING COVER, HEIGHT: 85 MM, O.D. 40 MM, ROUND SHAPE
GC进样用衬垫
Talboys 矩形铁架台底座(铸铁),102×152mm
CNWBOND HC-C18 SPE 小柱
反-2,4-二氯肉桂酸
套装 VOA 样品瓶 /旋盖/钳口盖-组合装 100
二硫化碳中7种苯系物标样苯、甲苯、乙苯、邻二甲苯、间二甲苯、对二甲苯、苯乙烯)