METHODS Acidic dye colorimetry with bromothymol blue as ion pair reagent was employed to determine the alkaloids in samples.
方法用溴麝香草酚蓝同川芎生物碱形成稳定的有色离子对酸性染料比色法测定总生物碱的含量。
Methods total alkaloids in Nitraria was extracted by acid-base and the content of total alkaloids was determined by the acidic dye colorimetry.
方法采用酸碱提取法提取总碱，以硫酸阿托品为对照品，酸性染料比色法测定白刺总生物碱的含量。
PH value of sliding agent in mercerized wool and nylon acid dyes, reactive dyes, mordant dyes or metal complex dyes for dyeing, dye bath can aptitude acidic PH value from sliding.
PH值滑动剂应用于丝光羊毛和锦纶的酸性染料、活性染料、媒介染料或金属络合染料的染色，可使染浴的PH值从中性向酸性滑移。
Treatment of acidic black dye wastewater by multi-phase catalytic oxidation over copper catalyst was studied.
以酸性黑染料废水为处理对象，对多相催化氧化处理工艺中的铜系催化剂进行研究。
Only the dye with carboxyl could be influenced by pH value and exhibit obvious aggregation in acidic medium.
含羧基染料在酸性溶液中形成较强烈的聚集。
Only the dye with carboxyl could be influenced by pH value and exhibit obvious aggregation in acidic medium.
含羧基染料在酸性溶液中形成较强烈的聚集。
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