高效液相色谱法测定人血浆中硫酸头孢匹罗的方法学研究

目的建立高效液相色谱法测定人血浆中硫酸头孢匹罗的含量。方法采用Diamonsil C18色谱柱,流动相为0.03mol.L-1磷酸二氢铵缓冲液(pH 3.3)-乙腈(9∶1);流量为1.0mL.min-1,检测波长为270nm。结果硫酸头孢匹罗浓度在0.3～20.0μg.mL-1呈良好的线性关系,最低检测浓度为100ng.mL-1,日间、日内精密度均<6.7%,回收率均>80%。结论本方法简单快速,准确灵敏,适用于注射用硫酸头孢匹罗在人体内的药物动力学研究。     

Clinical evaluation of monotherapy with cefpirome for infections complicating hematological disorders

The clinical effects of cefpirome (CPR) monotherapy were evaluated in 38 infected patients with hematological diseases. The underlying diseases of the patients were chiefly acute leukemia, myelodysplastic syndrome, malignant lymphoma, and aplastic anemia, and 18 patients were clinically neutropenic (<500 neutrophils/μL). Septicemia, pneumonia, or an unexplained fever, were the predominant complicating infections. The clinical efficacy of CPR was satisfactory or improved in 89.5% of patients. When compared to empirical combination therapy with 2 antibiotics, monotherapy with CPR reduced the drip infusion volume and the frequency of antibiotic administration, resulting in a better quality of life due to less frequent night urination, a low cost/benefit ratio, and reduction in nursing responsibilities. Due to this high efficacy rate, monotherapy with CPR should be considered as a front-line therapeutic approach in patients with infections accompanying hematological diseases, particularly those with neutropenia.     

高效液相色谱法测定注射用硫酸头孢匹罗中硫酸头孢匹罗的含量及其有关物质

目的:建立一种高效液相色谱法测定注射用硫酸头孢匹罗的含量及其有关物质。方法:采用 Mlltima C_(18)柱,以乙腈-0.03 mol·L~(-1)磷酸二氢铵(磷酸调 pH 3.3)(1:7)为流动相,检测波长为270 nm,流速1.0 mL·min~(-1),柱温为室温。结果:主成分与其余杂质峰完全分离,硫酸头孢匹罗在60.1～140.1μg·mL~(-1)浓度范围内呈良好的线性关系,高、中、低3种浓度下的平均回收率在99.1%～99.9%范围内。结论:该方法专属性好,精密度、准确度符合要求,方法可靠,可用于注射用硫酸头孢匹罗的含量及其有关物质的测定。