The content of antioxidant in synthetic rubber was determined by high-performance liquid chromatography gradient elution method,the effects of the factors,such as detection wavelength,flow rate,gradient elution condition on the determination results were investigated,and the repeatability and spiked recovery rate of the method were also deter-mined.The results showed that the optimal detection wavelength for this method was 292 nm or 285 nm and the flow rate was 1 mL/min;antioxidants had a good linear relationship within the corresponding concentration range and the calculation method was standard curve method or single-point method;this method had good repeatability and a high spiked re-covery rate ranging from 90％to 101％,and all the relative standard deviations were less than 5％.
关键词
高效液相色谱/梯度洗脱法/合成橡胶/防老剂/相对标准偏差/重复性/加标回收率
Key words
high-performance liquid chromato-graphy/gradient elution method/synthetic rubber/antioxidant/relative standard deviation/repeatabili-ty/spiked recovery rate
维普
万方数据