利用荧光光谱法研究了钇-铕-司帕沙星(SPFX)-十二烷基硫酸钠体系的稀土共发光效应,确定了最佳形成条件,并对其作用机理进行了探讨,提出了测定司帕沙星的荧光分光光度法.结果表明,共发光体系的荧光强度与司帕沙星的浓度在5.0×10-8 mol·L-1～8.0×10-6 mol·L-1范围内呈良好的线性关系,其检出限为2.0×10-8 mol·L-1.采用标准加入法测定了药物制剂和尿样中的SPFX,结果令人满意.
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