【作者】 徐立国； 严则义；

【Author】 XU Li-guo;YAN Ze-yi;Sichuan Environment and Protection Engineering Co.,Ltd.;Lanzhou University;

【机构】 中核四川环保工程有限责任公司； 兰州大学；

【摘要】 目前,在核工业领域,同时测定TBP、DBP、MBP一直是需要克服的难题。由于磷酸二丁酯(DBP)沸点及分解温度均为135～138℃,在发生气化前,即发生分解,此外,磷酸单丁酯(MBP)因含有两个极性的羟基,更难以气化。因此,必须利用合适的衍生化试剂,将DBP和MBP转化为低沸点的稳定化合物,进行测定。在本研究中,对该类衍生化试剂进行了大量的筛选,为了满足同时测定TBP、DBP及MBP这一特定的分析要求,通过考察进样口温度,检测器温度,色谱柱温度及其控温程序(温度梯度),载气种类及载气流速,固定相(合适的色谱柱),柱径,柱长,进样口类型及进样口流速等参数,建立适合的分析方法。更多还原

【Abstract】 At present,the simultaneous determination of TBP,DBP and MBP in the field of nuclear industry has been a problem to be overcome.DBP boiling point and decomposition temperature are135～138 ℃,in the gasification occurred before the decomposition occurs,In addition,MBP is more difficult to vaporize because it contains two polar hydroxyl groups.Therefore,DBP and MBP must be converted to low boiling point stabilizing compounds by appropriate derivatization reagents.In order to meet the specific requirements of simultaneous determination of TBP,DBP and MBP,the temperature of the inlet,the temperature of the detector,the temperature of the column and the control of the temperature of the detector were investigated.(Temperature gradient),carrier gas type and carrier gas flow rate,stationary phase(suitable column),column diameter,column length,inlet type and inlet flow rate were used to establish suitable analytical method.更多还原