N-succinimidyl 5-(tributylstannyl)-3-pyridinecarboxylate(SPC),a potential bi-functional linker for radiohalogenation of proteins,is synthesized via a new route and in normal experimental conditions. The products are c...N-succinimidyl 5-(tributylstannyl)-3-pyridinecarboxylate(SPC),a potential bi-functional linker for radiohalogenation of proteins,is synthesized via a new route and in normal experimental conditions. The products are characterized by 1H-NMR,MS and HPLC.The resulted SPC is labeled with 131I in a labeling yield of 71.2% and with radiochemical purity of more than 98% after HPLC purification.There are no significant changes in the radiochemical purity for 131I-SIPC after 72h storage at room temperature.展开更多
研究旨在将统计过程控制(Statistical Process Control,SPC)方法应用于颗粒饲料质量管理中,通过发现和采取措施消除异常波动来提高和稳定颗粒饲料产品的质量。利用SPC技术对某饲料企业2013年4月连续生产的大鸭料的PD(IPellet Durability...研究旨在将统计过程控制(Statistical Process Control,SPC)方法应用于颗粒饲料质量管理中,通过发现和采取措施消除异常波动来提高和稳定颗粒饲料产品的质量。利用SPC技术对某饲料企业2013年4月连续生产的大鸭料的PD(IPellet Durability Index)指数进行统计分析,绘制Xˉ-R控制图,并对过程进行了稳态判断和过程能力分析。结果表明:该颗粒饲料的过程能力(Cpk=0.78)不足,进一步分析是因为新采用的配方成型能力有待提高,通过改进该配方,过程能力恢复正常。结果提示,运用该法对颗粒饲料质量进行评价控制直观有效,为颗粒饲料质量管理提供了方法依据。展开更多
文摘N-succinimidyl 5-(tributylstannyl)-3-pyridinecarboxylate(SPC),a potential bi-functional linker for radiohalogenation of proteins,is synthesized via a new route and in normal experimental conditions. The products are characterized by 1H-NMR,MS and HPLC.The resulted SPC is labeled with 131I in a labeling yield of 71.2% and with radiochemical purity of more than 98% after HPLC purification.There are no significant changes in the radiochemical purity for 131I-SIPC after 72h storage at room temperature.
文摘研究旨在将统计过程控制(Statistical Process Control,SPC)方法应用于颗粒饲料质量管理中,通过发现和采取措施消除异常波动来提高和稳定颗粒饲料产品的质量。利用SPC技术对某饲料企业2013年4月连续生产的大鸭料的PD(IPellet Durability Index)指数进行统计分析,绘制Xˉ-R控制图,并对过程进行了稳态判断和过程能力分析。结果表明:该颗粒饲料的过程能力(Cpk=0.78)不足,进一步分析是因为新采用的配方成型能力有待提高,通过改进该配方,过程能力恢复正常。结果提示,运用该法对颗粒饲料质量进行评价控制直观有效,为颗粒饲料质量管理提供了方法依据。
