CAJ | 학술논문

本文利用自制的浮选装置,选择四氢呋喃和无水乙醇(4+1)混合溶液作溶剂,氯化钠作分相剂,将Fe(Ⅲ)与土霉素(OTC)形成的疏水性缔合物浮选至有机相,然后采用分光光度法测定,方法线性线性范围为6.6×10~(-7)～3.4×10~(-5) mol/L;检出限为3.63×10~(-7) mol/L;平均回收率为99.95%;表观摩尔吸光系数ε=2.028×10~5 L·5moL~(-1)·5cm~(-1).该方法设备简单、测定快速、灵敏度高、分离物质易于提取和不产生二次污染,可用于环境水样中痕量土霉素的快速测定.
본문이용자제적부선장치,선택사경부남화무수을순(4+1)혼합용액작용제,록화납작분상제,장Fe(Ⅲ)여토매소(OTC)형성적소수성체합물부선지유궤상,연후채용분광광도법측정,방법선성선성범위위6.6×10~(-7)～3.4×10~(-5) mol/L;검출한위3.63×10~(-7) mol/L;평균회수솔위99.95%;표관마이흡광계수ε=2.028×10~5 L·5moL~(-1)·5cm~(-1).해방법설비간단、측정쾌속、령민도고、분리물질역우제취화불산생이차오염,가용우배경수양중흔량토매소적쾌속측정.
A novel and green method for separating and enriching trace OTC in environmental water by hydrophilic organic solvent gas flotation has been proposed. The hydrophobic complex composed of Fe(Ⅲ) and OTC was floated into organic phase under the optimal conditions with home-made floatation equipment. The linear range was from 6.6×10~(-7) to 3.4×10~(-5) mol/L, the detection limit was 3.86×10~(-8) mol/L, and the average recoveries was 99.95%. The method has many advantages such as simple, fast, sensitive, easy separation and no contamination, and can be applied to the trace OTC analysis in water.