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默克生命科学  

微生物检测/快检,超纯水
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UV/VIS 校正标准品 2 -- 迷光 for stray light testing according to Ph Eur 面议0询价
缓冲液 (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 9.00 (25 面议0询价
缓冲液 (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PT 面议0询价
醋酸盐缓冲液 (acetic acid/sodium acetate) traceable to SRM from NIST and PTB pH 4.66 (20°C) CertiPUR® 面议0询价
缓冲液 (di-sodium hydrogen phosphate/potassium hydrogen phosphate), traceable to SRM from NIST and PTB 面议0询价
认证二级缓冲液标准品 potassium hydrogen phosphate/di-sodium hydrogen phosphate, directly traceable to primary 面议0询价
认证二级缓冲液标准品 potassium tetraoxalate dihydrate, directly traceable to primary SRM from NIST/PTB pH(S) = 面议0询价
认证二级缓冲液标准品 di-sodium tetraborate decahydrate, directly traceable to primary SRM from NIST/PTB pH(S) 面议0询价
认证二级缓冲液标准品 磷酸氢二钾/磷酸氢二钠,可直接追溯至NIST/PTB的一级SRM pH (S) = 6.863 (25°C) CertiPUR® 面议0询价
认证二级缓冲液标准品 potassium hydrogen phthalate, directly traceable to primary SRM from NIST/PTB pH(S) = 4.0 面议0询价
磷酸氢二钠 (buffer stock solution) 1/15 mol/l 面议0询价
磷酸二氢钾溶液 (buffer stock solution) 1/₁₅ mol/l 面议0询价
缓冲剂 (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (20°C) CertiPUR® 面议0询价
浓缩缓冲液 (potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solu 面议0询价
浓缩缓冲液 for 500 ml buffer solution, (phosphate/sodium hydroxide), traceable to SRM of NIST and PTB for 面议0询价
浓缩缓冲液 for 500 ml buffer solution, (boric acid/potassium chloride/sodium hydroxide), traceable to SRM 面议0询价
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