微波消解-ICP-OES法测定油田采出液中的总磷  

Determination of total phosphorus in oilfield produced fluid by microwave digestion-ICP-OES

作　　者：孔艳[1] 陈凤祥 董娟[1] 刘亦畅 宋继芳[1] Kong Yan;Chen Fengxiang;Dong Juan;Liu Yichang;Song Jifang(Experimental Center of Daqing Oilfield Co.,Ltd.,Exploration and Development Research Institute,Central Laboratory,Daqing 163712,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院实验中心中心化验室,大庆163712

出　　处：《分析仪器》2023年第1期54-57,共4页Analytical Instrumentation

摘　　要：采用微波消解-ICP-OES法测定油田采出液中的总磷。选择碲作为内标元素,应用在线加入内标校正干扰效应,降低由于仪器的漂移及基体效应引起的分析误差,提高分析的精密度。方法检出限为0.014μg/mL。对实际采出液样品进行6次连续测定,相对标准偏差(RSD)为0.62%~3.78%,加标回收率为92.8%~103.0%。与分光光度法相比,测定结果没有明显差异。方法有较高的灵敏度和较低的检出限,快速、准确,能够满足油田采出液中总磷的测定要求。Tellurium was used as the internal standard element,and the interference effect was corrected by adding internal standard on-line to reduce the analysis error caused by instrument drift and Matrix effect,and improve the precision of the analysis.The samples of actual produced liquid were continuously determined for 6 times,the detection limit was 0.014μg/mL,the relative standard deviations(RSD)was in the range of 0.62%—3.78%,and the recovery rate of standard addition ranged from 92.8% to 103.0%.The results were not significantly different from those of spectrophotometry.The sensitivity was high and the detection limit was low.The method is rapid and accurate.

关 键 词：微波消解 电感耦合等离子体发射光谱法 油田采出液 总磷 内标 

分 类 号：O657.31[理学—分析化学] TE35[理学—化学]