STUDY ON THE PROCESS OF SIMULTANEOUS DETERMINATION OF U AND THORI ORE SAMPLES OF PA LUA MINING USING ICP_MS
Nguyễn Mạnh Hùng
Trần Anh Dũng
Vũ Anh Tuấn
Trần Thị Thúy
Abstract
In this paper, the process of simultaneous determination of U and Th has been investigated by ICP-MS method. The method showed good performance in the concentration range from 3 to 105 ppb. The LODs were 3.173 and 2.603 ppb for U and Th respectively. The LOQs were 10.58 and 9.68 ppb for U and Th respectively. Spike recoveries were from 101 to 110% and the repeatabilities were lower than 5% RSD. The method has been applied for investigation and exploration of U and Th at Pa Lua mining.
