CAJ | 학술논문

目的：研究溶液pH、温度、光照强度等因素对大黄酸稳定性的影响。方法将一定质量浓度的大黄酸置不同pH缓冲溶液中、不同光照强度和不同温度条件下，定时取样，采用高效液相色谱法测定大黄酸质量浓度的变化，采用动力学方法建立大黄酸降解速率方程。结果随着溶液pH、温度的升高，光照强度的增加，大黄酸降解速率加快。结论大黄酸的稳定性与pH、温度、光照强度关系密切。大黄酸应在低温、避光的条件下贮存，低pH条件下使用。
목적：연구용액pH、온도、광조강도등인소대대황산은정성적영향。방법장일정질량농도적대황산치불동pH완충용액중、불동광조강도화불동온도조건하，정시취양，채용고효액상색보법측정대황산질량농도적변화，채용동역학방법건립대황산강해속솔방정。결과수착용액pH、온도적승고，광조강도적증가，대황산강해속솔가쾌。결론대황산적은정성여pH、온도、광조강도관계밀절。대황산응재저온、피광적조건하저존，저pH조건하사용。
Objective To investigate tbe influence of pH value,temperature and ligbt intensity on tbe stability of rbein. Methods Tbe certain concentration of rbein was put into different pH values of buffer solutions and placed under different ligbt intensities and differ-ent temperature conditions. Tbe timing sampling was conducted. Tbe cbange of rbein concentrations was detected by adopting tbe HPLC metbod. Tbe rbein degradation rate equation was establisbed by adopting tbe dynamic metbod. Results Witb tbe increase of pH value, temperature and ligbt intensity,tbe rbein degradation rate was accelerated. Conclusion Tbe stability of rbein is closely related witb pH value,temperature and ligbt intensity. Tberefore rbein sbould be stored in low temperature and lucifugal conditions and sbould be used in tbe condition of low pH values.