氧氯化锆八水合物 [八水氯氧化锆],Zirconium(IV) oxide chloride octahydrate;for analysis EMSURE®, ≥97.0% (gravimetric)
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维生素B12 [氰钴胺素, 腈钴胺],Vitamin B12 [CN-Cbl, VB12];pharmaceutical secondary standard, certified reference material
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硫酸铁(II)七水合物 [硫酸亚铁七水合物],Iron(II) sulfate heptahydrate;ACS reagent, ≥99.0%
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蛋白酶K来源于林伯氏白色念球菌,Proteinase K from Tritirachium album;≥30 units/mg protein
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甲醛溶液 [福尔马林],Formaldehyde solution;ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)
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乙酰胆碱酯酶来源于电鳗 [AChE],Acetylcholinesterase from Electrophorus electricus (electric eel);Type VI-S, lyophilized powder, 200-1,000 units/mg protein
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葡萄糖氧化酶来源于黑曲霉,Glucose Oxidase from Aspergillus niger [G.Od., GOx];Type X-S, lyophilized powder, 100,000-250,000 units/g solid (without added oxygen)