尿素酶来源于洋刀豆 [脲酶],Urease from Canavalia ensiformis (Jack bean);Type III, powder, 15,000-50,000 units/g solid
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铼,Rhenium;箔/薄片,厚度~0.25毫米;foil, thickness 0.25 mm, 99.98% trace metals basis
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甜菜碱盐酸盐,Betaine hydrochloride;for synthesis, ≥98.0%
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氧化钐(III),Samarium(III) oxide;99.9% trace metals basis
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乙酸钠 [醋酸钠],Sodium acetate;anhydrous for analysis EMSURE® ACS,Reag. Ph Eur
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枸橼酸铋 (III),Bismuth(III) citrate;99.99% trace metals basis, −325 mesh
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羟乙基哌嗪乙硫磺酸,HEPES;Vetec™, reagent grade, 99.5%