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7种阴离子混标,SO4/Br/Cl/PO4(as P)/F/NO3(as N)NO2(as N),溶于 H2O
HyperSep Diol 200mg 3mL SPE Column 50个/包装
HPLC四氢呋喃
糖度计,60-90°Brix,1°Brix
LiChroCART 125-4,6,LiChroprep 60 Si 40-63μm定制柱
(R)-(-)-3- 氨基吡咯烷二盐酸盐
FUNNELS FOR SOLID, FOR POWDERY SUBSTNACES; VERTICAL VERSION WITH COOLED LOWER PART, CONE AND SOCKE
Talboys Model 711台钳,尼龙带有安全提示信息
冷藏箱
HYPERSIL GOLD PFP 5UM 20X2.1MM DASH HTS PK/10