论文部分内容阅读
对溴酚蓝比色法测定水相中微量胺的方法进行了研究。确立了显色萃取的酸度及相比等条件。在氯乙酸-乙酸钠缓冲溶液存在下(pH2.7),可获得满意结果:相对标准偏差<±6%;回收率93%—110%;可用于水相中≥0.05mg/L胺的测定。
The method of bromophenol blue colorimetric determination of trace amines in aqueous phase was studied. Established the color extraction acidity and compared to other conditions. Satisfactory Results: Relative Standard Deviation <± 6%; Recovery 93% -110% in the Presence of Chloroacetic Acid-Sodium Acetate Buffer (pH 2.7); Can Be Used for Determination of Amines> 0.05 mg / L in Aqueous Phase .