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louise0220新蟲 (正式寫手)
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[求助]
Lowry法測定腐植酸問題求解答
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我找到了一篇早期的文獻,里面有一段描述用Lowry法測定腐植酸和蛋白質的過程。但是我不是很理解啊。什么叫硫酸銅加不加,分別能測定蛋白質和腐殖酸? Proteins and humic compounds were deter-mined using the Lowry procedure.Colour development was mea- sured with and without CuSO4 addition. When CuSO4 is omitted the colour development is due to humic compounds (Box 1983) and chromogenic amino acids (Peterson 1979). Without CuSO4 the colour developed by bovine serum albumin (BSA) decreased to 20% but no decrease was observed for humic acids. The mu- tual interference of proteins and humic compounds was ad-dressed as shown in Eqs. 1-4. 哪位神仙有用過此方法測定腐植酸的嗎?如果有的話,能不能告知一二,或者如果有該方法比較詳細的資料,也可以發(fā)一份給我參考一下。。。謝謝啊。。。。 |
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