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.

• 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。