potentiometric titration短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 电势滴定,电位滴定 The four fractions are determined and characterized by non- aqueous potentiometric titration, microcoulometric and infrared spectroscopy. 用非水电位滴定法，元素分析法及红外光谱法对渣油及其组成中的氮化物进行分析鉴定。 chemyq This paper reports the measurement of the quantity of the free amino in chitosan by potentiometric titration. 甲壳胺中游离氨基的含量，是甲壳胺重要的质量指标之一。 chemyq