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  • NAOH role

    he xanthoproteic test is a method that can be used to determine the amount of protein soluble in a solution, using concentrated nitric acid. The test gives a positive result in those proteins with aminoacids carrying aromatic groups, especially in the presence of tyrosine. If the test is positive the proof is neutralized with an alkali, turning dark yellow This chemical reaction is a qualitative test, determining the presence or absence of proteins. To quantify, it is used another reaction, such as the Biuret, and an analysis is made by photometric spectrum.

    ۱۳۹۱ سه شنبه ۲۷ تير | 2 | marand

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  • نقش سود

    سلام به عنوان بافر یا تعدیل کننده پ هاچ عمل می کند.

    ۱۳۹۱ سه شنبه ۲۴ مرداد | 0 | ali2997

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