称量法测定高放废液总蒸残物、总氧化物和密度  

DETERMINATIONS OF TOTAL RESIDUE. TOTAL OXIDE AND DENSITY OF HIGH-LEVEL LIQUID WASTE(HLLW) BY GRAVIMETRIC METHOD

作　　者：李云[1] 高月英[1] 杨敏 金立云[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《原子能科学技术》1992年第5期9-12,共4页Atomic Energy Science and Technology

摘　　要：建立了称量法以测定高放废液总蒸残物、总氧化物和密度。定量移取高放废液原始样品于古英盘中,小心转入微型马弗炉。先于≤100℃下加热除去湿成水。接着升温至180℃除去结晶水,再于700℃灼烧。分别称重并计算总蒸残物和总氧化物。方法精密度(RSD)优于3%。定量取高放废液原始样品于称量瓶中称量,计算高放废液密度。方法精密度优于1%。Gravimetric method for determination of total residue, total oxide and density of HLLW is developed. An aliquot of the original HLLW solution is pipetted on to the small quartz disc and put into the minimuffle furnace carefully. It is first heated to below 100 C for 1. 5 hours to remove the free water. and then heated to 180 C for 2 hours to remove the crystal water in a furnace. The total residue is weighed at room temperature. The furnace is then heated to 700 C for one hour. The total oxide is weighed at room temperature. The precision is better than 3% for the determination of total residue and total oxide. An aliquot of the original HLLW solution is pipetted into the weighing bottle and weighed. The precision is better than 1%.

关 键 词：高放废液 总蒸残物 总氧化物 密度 

分 类 号：TL941.101[核科学技术—辐射防护及环境保护]