【摘要】 用高效液相色谱法(HPLC)测定丁腈橡胶(NBR)中防老剂4020和MC。HPLC测定条件:流动相甲醇/水体积比90/10、流速1.0mL/min、检测波长λ297nm、柱温30℃,含防老剂4020和MC的样品进样量分别为10μL和20μL。结果表明,HPLC法测定丁腈橡胶中防老剂4020和MC时,溶液浓度与峰面积有良好的线性关系。HPLC法还适合经多种不同条件老化后的丁腈橡胶中防老剂4020和MC含量测定。更多还原

【Abstract】 The contents of antioxidant 4020 and antioxidant MC in NBR were determined by high performance liquid chromatography(HPLC).The operational conditions of HPLC had been selected by experiments.The mobile phase was 90 methanol∶10 water(vol %)flow rate was 1.0mL/min detection wavelength was 297nm,column temperature was 30℃,injection volumes of sample were 10μL and 20μL,respectively for antioxidant 4020 and antioxidant MC.The solution concentration solulon of antioxidant 4020 and MC was good linear with peak area by HPLC,HPLC was also suit for determining antioxidant 4020 and antioxidant MC in NBR after various aging conditions.更多还原