收稿日期:2022-03-18作者简介:施悦,硕士,主管药师,从事药物检验工作,E-mail:530169136@qq.comICP-MS测定枸橼酸托法替布片中7种元素杂质施悦(淮安市食品药品检验所,江苏淮安223300)摘要:目的建立电感耦合等离子体质谱法(ICP-MS)测定枸橼酸托法替布片中钒(V)、钴(Co)、镍(Ni)、砷(As)、镉(Cd)、汞(Hg)、铅(Pb)等7种杂质元素残留量的检测方法。方法采用微波消解处理样品,采用ICP-MS测定枸橼酸托法替布片中砷、镉等7种元素的含量。结果7种元素的专属性良好;在定量限~200%限度范围内的线性关系良好,相关系数(r)≥0.995;准确度良好,回收率均在90%~100%范围内,RSD均小于2%;重复性实验的回收率均在90%~100%内,RSD均小于5%;中间精密度实验的回收率均在90%~100%内,RSD%均小于8%;稳定性实验的8h与0h相比回收率均在80%~120%内。结论ICP-MS法用于测定枸橼酸托法替布片中7种金属元素杂质,操作简便,结果准确,具有良好的应用前景。关键词:电感耦合等离子体质谱法;枸橼酸托法替布片;金属元素杂质中图分类号:R927.11O657.63文献标识码:A文章编号:1672-979X(2023)01-0065-04DOI:10.3969/j.issn.1672-979X.2023.01.012DeterminationofSevenElementalImpuritiesinTofatibCitrateTabletsbyICP-MSSHIYue(Huai’anInstituteofFoodandDrugInspection,Huai’an223300,China)Abstract:ObjectiveToestablishanICP-MSmethodforthedeterminationofsevenelementalimpuritiesinTofatibCitrateTabletsincludingV,Co,Ni,As,Cd,Hg,Pb.MethodsThesamplesweredigestedbymicrowaveandthecontentsof7elementsweredeterminedbyICP-MS.ResultsThespecificityofthe7elementswasgood.Thelinearrelationshipwasgoodwithinthelimitofquantificationto200%andthecorrelationcoefficient(r)was≥0.995.Theaccuracywasgoodwithintherangeof90%-100%andtheRSDwaswithintherange.Therecoveriesoftherepeatabilityexperimentswereintherangeof90%-100%/andRSDwaslessthan5%.Therecoveriesofintermediateprecisionexperimentswereallintherangeof90%-100%andRSDwaslessthan8%.Inthestabilitytest,comparedwith0h,therecoveryof8hwas80%-120%.ConclusionTheICP-MSmethodissimple,accurateandhasagoodapplicationprospectindeterminingsevenmetalelementalimpuritiesinTofatibCitrateTablets.KeyWords:ICP-MS;TofatibCitrateTablets;metalelement...