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水中化学需氧量标准溶液-(COD-Cr)
Chrysene (13C6) Solution 100ug/ml in n-Nonane
食品中添加剂(GB 14758-2010和GB5009.139-2014)
Pentachloronitrobenzene Solution 1000ug/ml in Isooctane
C28 1-Methyl triaromatic sterane + C28 Triaromatic sterane (0856.28)
苯酮唑溶液,100ppm
GPC标样-葡聚糖(Mw 50800)(支链) 标准品
4,4’-DDT(p,p’-DDT)标准品,100ng/ul于环己烷
7-Amino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic Acid
亚乙基硫脲(乙撑硫脲) BePure-22697