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聚异丁烯丁二酸酐中聚异丁烯的液相色谱分析

Detection of polyisobutylene in polyisobutylene succinic anhydride by HPLC
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摘要 利用高效液相色谱,采用外标法测定聚异丁烯丁二酸酐中间产品中聚异丁烯的含量,采用示差检测器进行检测。色谱柱为自制改性氧化铝柱(4.6mm×250mm,15.0μm),正己烷为流动相,流速为1mL/min。标准曲线相关性良好,聚异丁烯平均线性范围为3.8-111g/L,其线性相关系数为0.9998,相对标准偏差为2.08%,回收率为98.5%-101.5%。该方法简便、经济、结果准确。 The detemination of polyisobutylene by HPLC using external standard method was described. Alumina column was used and the refractive detection was applied. N-hexane was used as the mobile phase, flow rate was 1 mL/min. The calibration curve presented good linearity. The linear ranges of polyisobutylene was 3. 8-111 g/L,the correlation coefficient was found to be 0. 999 8 and the relative standard deviations was 2.08 %, The average recovery rate of polyisobutylene was in the range of 98. 5 %-101.5 %. It proves a simple, economical, accurate and sensitive method.
出处 《弹性体》 CAS 2008年第2期62-64,共3页 China Elastomerics
关键词 聚异丁烯 聚异丁烯丁二酸酐 高效液相色谱 外标法 polyisobutylene polyisobutylene succinic anhydride HPLC external standard method
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