系统内标法测定七参颗粒中多指标成分

目的:建立同时测定七参颗粒中多个有效成分的系统内标含量测定方法。方法:以七参颗粒中人参皂苷Rg1为内标,测定人参皂苷Rg1与三七皂苷R1、人参皂苷Re和人参皂苷Rb1之间的相对校正因子,利用该相对校正因子计算三七皂苷R1、人参皂苷Re和人参皂苷Rb1的含量,并与外标一点法测定结果进行比较,以确定方法的准确性和可行性。结果:外标一点法与系统内标法测定3批七参颗粒中的4种成分含量的结果无显著差异(P>0.05),可以准确测定七参颗粒中4种成分的含量。结论:系统内标含量测定方法既能同时测定中药中多个成分的含量,又能简化实验操作,有望成为适合中药特点的多指标质量评价新模式。

HPLC-系统内标法测定桂枝汤中芍药苷、甘草苷、肉桂酸、桂皮醛和甘草酸

目的建立同时测定桂枝汤中多个有效成分的系统内标方法(SIS)。方法以桂枝汤中芍药苷为内标,测定芍药苷与甘草苷、肉桂酸、桂皮醛和甘草酸之间的相对校正因子,利用该相对校正因子计算甘草苷、肉桂酸、桂皮醛和甘草酸,并与外标一点法(ACV)测定结果进行比较,以验证方法的准确性和可行性。结果ACV与SIS测定5批桂枝汤中的5种成分的结果无显著差异(P>0.05),可以准确测定桂枝汤中5种成分。结论SIS方法既能同时测定中药中多个成分的量,又能简化实验操作,有望成为适合中药特点的多指标质量评价新模式。

THE INNER-SYSTEM LABELING ALGORITHM AND ITS FAIRNESS ANALYSIS

On the basis of inner-system labeling signaling used in the integrated access system,a kind of inner-system labeling algorithm is introduced in this paper, and the fairness of the algorithm for each traffic stream in the integrated-services is analyzed. The base of this algorithm is Class of Services (CoS), and each packet entering the relative independent area (an autonomous system) would be labeled according to the service type or Quality of Service (QoS) in demand,and be scheduled and managed within the system (the system can be enlarged if conforming to the same protocol). The experimental results show that each of the stream rate in the integratedservices would converge to a stable value if the rates of transmitting converge to that of the receiving exponentially, that is, the effective traffic of each stream would be fair.