染料木苷,Genistin;≥97.5% (TLC)
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硫化镍,Nickel sulfide;99.7% trace metals basis, −150 mesh -
2-吡咯烷酮,2-Pyrrolidinone;99% -
瑞鲍迪苷A,Rebaudioside A;phyproof® Reference Substance, ≥95.0% (HPLC) -
柠檬酸,Citric acid;Pharmaceutical Secondary Standard; Certified Reference Material -
氧化银,Silver(I) oxide;≥99.99% trace metals basis -
钨,Tungsten;powder, 12 μm, 99.9% trace metals basis
