摘要
目的 建立HPLC法测定连续性肾脏替代治疗(CRRT)脓毒血症患者哌拉西林/他唑巴坦的血药浓度,以指导临床个体化用药方案设计。方法 选用流动相为0.1 mol·L^(-1)的磷酸二氢钠溶液(A)-乙腈(B),采用梯度洗脱的方法对乙腈进行处理,流速为1 mL·min^(-1),柱温为30℃,检测波长为220 nm,pH值为6.4,进样量为20μL,建立测定CRRT的脓毒血症患者哌拉西林/他唑巴坦血药浓度的HPLC法。采用该方法测定12例CRRT的脓毒血症患者哌拉西林/他唑巴坦血药浓度达到稳态时的谷浓度。结果 在5~300mg·L^(-1)的范围内哌拉西林质量浓度与峰面积具有线性关系(Y=0.134 6 X-0.061 2,r=0.999 3)。在1~50 mg·L^(-1)的范围内他唑巴坦质量浓度与峰面积具有线性关系(Y=0.060 7 X+0.068 7,r=0.999 2)。哌拉西林和他唑巴坦的平均回收率分别为99.19%和100.13%,日内和日间精密度均小于8%。12例CRRT的脓毒血症患者哌拉西林血药浓度均高于最低抑菌浓度(4 mg·L^(-1)),但其中有2例低于最低抑菌浓度的4倍,他唑巴坦的血药浓度均高于最低抑菌浓度(1 mg·L^(-1))。结论 该研究建立的HPLC法测定哌拉西林/他唑巴坦血药浓度的方法操作简便,检测成本低,能满足临床血药浓度监测需求,适合基层医疗机构进行个体化给药方案设计时使用。
AIM To establish a high-performance liquid chromatography(HPLC)method for simultaneous determination of piperacillin/tazobactam concentrations in the serum of patients receiving continuous renal replacement therapy(CRRT)treatment,so as to apply them to clinical practice for personalized drug design.METHODS The mobile phase was a mixture of acetonitrile and 0.1 mol·L^(-1) sodium dihydrogen phosphate solution.Acetonitrile was treated by gradient elution at a flow rate of 1 mL·min^(-1).The flow rate was 1 mL·min^(-1),the column temperature was 30℃,the detection wavelength was 220 nm,the pH value was 6.4,and the injection amount was 20μL.The HPLC method was established to determine piperacillin/tazobactam concentration in patients receiving continuous renal replacement therapy treatment.The trough concentration of piperacillin/tazobactam in the serum of 12 sepsis patients with CRRT was determined by the method when the blood concentration reached a steady state.RESULTS There was a linear relationship between concentration range of 5-300 mg·L^(-1) and peak area for piperacillin(Y=0.1346X-0.0612,r=0.9993).A linear relationship was obtained between concentration range of 1-50 mg·L^(-1) and peak area for tazobactam(Y=0.0607X+0.0687,r=0.9992).Average recoveries of piperacillin and tazobactam were 99.19%and 100.13%,respectively,with intra-day and inter-day precision less than 8%.The serum drug concentrations of piperacillin in 12 patients were all higher than the minimum inhibitory concentration(4 mg·L^(-1)),but serum drug concentrations in 2 cases were below 4 times the minimum inhibitory concentration.The serum concentration of tazobactam was higher than 1 mg·L^(-1).CONCLUSION The HPLC method for detecting the serum concentration of piperacillin/tazobactam is simple to operate,with low instrument and detection costs,and can meet the needs of clinical practice testing.It is more suitable for adjusting personalized medication plans in primary medical institutions.
作者
何玲芳
王直滔
楼永海
徐庆圣
HE Lingfang;WANG Zhitao;LOU Yonghai;XU Qingsheng(Department of Rehabilitation,Linhai Hospital of Traditional Chinese Medicine,Taizhou 317000,China;Department of Pharmacy,Taizhou Hospital of Zhejiang Province,Taizhou 317099,China;College of Pharmacy,Wenzhou Medical University,Wenzhou 325035,China)
出处
《中国临床药学杂志》
CAS
2024年第5期376-380,共5页
Chinese Journal of Clinical Pharmacy
基金
浙江省药学会医院药学专项科研资助项目(编号2017ZYY27)。
关键词
哌拉西林
他唑巴坦
HPLC
血药浓度
治疗药物监测
piperacillin
tazobactam
high-performance liquid chromatography
therapeutic drug monitoring
