目的比较不同标准中阿莫西林/克拉维酸钾干混悬剂有关物质的测定方法。方法采用2015年版《中国药典》(以下简称Ch P 2015)、2014版《英国药典》(以下简称BP2014)、同品种进口注册标准(JX20040226)所收载的阿莫西林/克拉维酸钾干混悬剂...目的比较不同标准中阿莫西林/克拉维酸钾干混悬剂有关物质的测定方法。方法采用2015年版《中国药典》(以下简称Ch P 2015)、2014版《英国药典》(以下简称BP2014)、同品种进口注册标准(JX20040226)所收载的阿莫西林/克拉维酸钾干混悬剂质量标准中有关物质的方法,分别测定其有关物质,对色谱行为、已知杂质系统适用性、有关物质测定结果等进行比较。结果阿莫西林/克拉维酸钾干混悬剂有关物质的测定方法存在较大差异,BP2014中有关物质的色谱条件对阿莫西林/克拉维酸钾杂质的分离效能更好。结论建议在以后的标准制定中利用系统适用性中各杂质的色谱信息,参照BP2014色谱条件,提高本品有关物质的测定方法。展开更多
In order to obtain accurate prediction model and compensate for the influence of model mismatch on the control performance of the system and avoid solving nonlinear programming problem,an adaptive fuzzy predictive fun...In order to obtain accurate prediction model and compensate for the influence of model mismatch on the control performance of the system and avoid solving nonlinear programming problem,an adaptive fuzzy predictive functional control(AFPFC) scheme for multivariable nonlinear systems was proposed.Firstly,multivariable nonlinear systems were described based on Takagi-Sugeno(T-S) fuzzy models;assuming that the antecedent parameters of T-S models were kept,the consequent parameters were identified on-line by using the weighted recursive least square(WRLS) method.Secondly,the identified T-S models were linearized to be time-varying state space model at each sampling instant.Finally,by using linear predictive control technique the analysis solution of the optimal control law of AFPFC was established.The application results for pH neutralization process show that the absolute error between the identified T-S model output and the process output is smaller than 0.015;the tracking ability of the proposed AFPFC is superior to that of non-AFPFC(NAFPFC) for pH process without disturbances,the overshoot of the effluent pH value of AFPFC with disturbances is decreased by 50% compared with that of NAFPFC;when the process parameters of AFPFC vary with time the integrated absolute error(IAE) performance index still retains to be less than 200 compared with that of NAFPFC.展开更多
文摘目的比较不同标准中阿莫西林/克拉维酸钾干混悬剂有关物质的测定方法。方法采用2015年版《中国药典》(以下简称Ch P 2015)、2014版《英国药典》(以下简称BP2014)、同品种进口注册标准(JX20040226)所收载的阿莫西林/克拉维酸钾干混悬剂质量标准中有关物质的方法,分别测定其有关物质,对色谱行为、已知杂质系统适用性、有关物质测定结果等进行比较。结果阿莫西林/克拉维酸钾干混悬剂有关物质的测定方法存在较大差异,BP2014中有关物质的色谱条件对阿莫西林/克拉维酸钾杂质的分离效能更好。结论建议在以后的标准制定中利用系统适用性中各杂质的色谱信息,参照BP2014色谱条件,提高本品有关物质的测定方法。
基金Project(2007AA04Z162) supported by the National High-Tech Research and Development Program of ChinaProjects(2006T089, 2009T062) supported by the University Innovation Team in the Educational Department of Liaoning Province, China
文摘In order to obtain accurate prediction model and compensate for the influence of model mismatch on the control performance of the system and avoid solving nonlinear programming problem,an adaptive fuzzy predictive functional control(AFPFC) scheme for multivariable nonlinear systems was proposed.Firstly,multivariable nonlinear systems were described based on Takagi-Sugeno(T-S) fuzzy models;assuming that the antecedent parameters of T-S models were kept,the consequent parameters were identified on-line by using the weighted recursive least square(WRLS) method.Secondly,the identified T-S models were linearized to be time-varying state space model at each sampling instant.Finally,by using linear predictive control technique the analysis solution of the optimal control law of AFPFC was established.The application results for pH neutralization process show that the absolute error between the identified T-S model output and the process output is smaller than 0.015;the tracking ability of the proposed AFPFC is superior to that of non-AFPFC(NAFPFC) for pH process without disturbances,the overshoot of the effluent pH value of AFPFC with disturbances is decreased by 50% compared with that of NAFPFC;when the process parameters of AFPFC vary with time the integrated absolute error(IAE) performance index still retains to be less than 200 compared with that of NAFPFC.
