摘要
本文研究了新型吸附材料-活性碳纤维的在线分离富集特性,用FI活性碳纤维填充的锥形柱,实现痕量金属元素Zn、Ph、Ni、Co、Cd、Mn的在线富集。经HNO3洗脱后.由ICP-AES检测,测定速率达30样/h,检出限(ng/mL)分别为:0.4(Zn)、4.0(Ph).0.9(Ni)、0.4(Co)、0.4(Cd)、0.7(Mn),富集柱可使用多次。
The study on the characters of the ACF applied to on-line column preconcentration was performed. The flow-injection system using cone column filled with ACP for preconcentration of trace amounts of heavy medals combined with an inductively coupled plasma atomic emission spectroscopy (ICP AES) is established. A sample frequency of 30 s·h-1 could be achieved. The de tection limits for Zn, Ph, Ni, Co, Cd and Mn are 0. 4, 4. 0, 0. 9, 0. 4 and 0. 7 μg/L, respec tively. The ACF cone column has the advantages of stable performance, simple operation, high preconcentration factor and long life time.
出处
《分析科学学报》
CAS
CSCD
1995年第2期16-20,共5页
Journal of Analytical Science
基金
国家自然科学基金