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建立FOS-μSIA-LOV光谱在线过程分析,实现自动化含量测定头孢拉定(RAD)。通过程序编写,元件智能控制,优化实验条件,考察了RAD中的辅料,载液,进样体积等因素。优选条件为:载液吸入体积为500μL;RAD吸入体积为100μL;打出体积的流速为150μL·s~(-1),RAD质量浓度c与ΔF的线性关系为ΔF=812.6c+284(0.05~0.5mg·mL~(-1),r=0.999 5),RSD为4.4%,回收率为101%~103%。通过FOS-μSIA-LOV系统和设定特定检测程序,实现自动化在线过程分析,具有重现性好、节约试剂、省时省力的优点。
FOS-μSIA-LOV spectroscopy online process analysis was established for the automated determination of cefradine (RAD). Through programming, intelligent control of components, optimization of experimental conditions, investigated RAD accessories, carrier fluid, injection volume and other factors. The optimal conditions were as follows: the volume of entrapped liquid was 500μL; the volume of RAD inhaled was 100μL; the flow rate of the volume was 150μL · s -1, the linear relationship between RAD mass concentration and ΔF was ΔF = 812.6c + 284 (0.05 ~ 0.5mg · mL -1, r = 0.999 5). The RSD was 4.4% and the recovery was 101% -103%. Through the FOS-μSIA-LOV system and the setting of specific testing procedures, automated on-line process analysis is realized with the advantages of good reproducibility, reagent saving and time saving.