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一克拉的眼淚鐵蟲 (初入文壇)
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[求助]
葡萄糖氧化酶粉末如何配成酶溶液?
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葡萄糖氧化酶凍存后變?yōu)榉勰┝,我現(xiàn)在需要配成酶溶液,如何配制?酶活力要在6U左右,怎么做丫,那個(gè)大師給我講講唄,我剛開始做!求指導(dǎo)!這個(gè)酶活怎么測(cè)??配完后還需要過濾,酶濃度怎么算啊都?剛開始,一頭霧水、、、、![]() ![]() |
木蟲 (正式寫手)
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SPECIFICATIONS Appearance. . . . . . . Liquid Activity . . . . . . >7500 U/ml at 25°C Specific Activity . . .. . . . . >250.0 U/mg protein at 25°C Contaminants: o Glucose oxidase to catalase ratio . . . . . . . . .. >2.7: CHARACTERISTICS Optimum pH . . . . . . . . . . . . 5.2 pH stability . . .. . . . . . . . . 3.5 – 6.5 Optimum Temperature . . . .. . 55°C Temperature stability . . . . . . . 40°C - 60°C Stability . . . . . . . . . 1 year at 2-8°C ASSAY PRINCIPLE Glucose Oxidase catalyses the following reaction: The formation of quinoeimine dye can be measured spectrophotometrically at 500nm UNIT DEFINITION One unit of activity is efined as the amount of enzyme that will catalyse the oxidation of 1.0 micromole of glucose per minute at 25°C under the standard assay method conditions. Peroxidase |
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