PH indicator

基本解釋

It is firstly def ined as minus logarithm of PH indicator.
首先定義為氫離子濃度負(fù)對(duì)數(shù)。
A method of abstracting plant pigment as alternate indicator was described, and the change of colour at different pH ranges in various plant pigmentes was measured.
本文綜述了黑色素的理化性質(zhì)和生理功能，以及林木植物黑色素的分離制取方法，并就黑色素的研究和應(yīng)用進(jìn)行了展望。
Taking alcoholicity as the indicator, the effects of initial sugar content, initial pH, inoculum size and temperature on the fermentation of the wine were investigated.
以酒精度為指標(biāo)，研究了初始糖度、初始酸度、接種量和發(fā)酵溫度對(duì)涼薯果酒發(fā)酵的影響；
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