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Polystyrene Spheres (30 μm Diameter Particle Size)
醋酸可的松溶液,100ppm
3.3-Dimethyl heptane (无证书)
1-辛醇,standard for GC, ≥99.7%,1ML 标准品
First Standard® 丙酮中甲拌磷砜溶液,1000μg/mL
46741, Dibenzo[a,e]pyrene (purity) 标准品
羊毛脂 标准品
Manganese - Mn metal, 99.99%, 2% HNO3
C31-C40 Paraffin Kit (15 samples, 18 compounds)
大米中转基因成分(阳性)质控样