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样品瓶 12X50 外壳 20PKS/件
2-氯-6-甲氧基-3-硝基吡啶
碲(Te)AAS标准溶液,10000mg/L溶于40% HCl
HyperSep Retain PEP SPE Column 10mg 1mL 100pk
3-羟基-2-碘-6-甲基吡啶
2-氟-4-甲基吡啶
草乃敌; 双苯酰草胺
CHROMATOGRAPHIC-COLUMNS 15 ML, W. RESERVOIR 250 ML, SOCKET ST 29/32, ST-STOPCOCK W. SOLID PLUG,10
VISCOMETERS, CANNON FENSKE, L. 295 MM CAPILLARY NO.400 RANGE CST240-1200 MM2/S 1,20C, CALIBRATED
光谱传感器523nm
