摘要
用 732型强酸性阳离子交换树脂分离富集 ,并与改进的流动注射 (双流路 )相结合 ,建立了新型、高效的流动注射 -阳离子交换预富集 - ICP- AES在线分析体系。研究了酸度、流速、淋洗剂浓度等的选择、共存离子的干扰情况并应用于矿样的分析。 Ca,Mg,Al,Fe各元素的检出限分别为 0 .9μg/ L,0 .6 μg/ L,5.5μg/ L,1 .4μg/ L;1 0次测量的相对标准偏差分别为 3.4 4% ,1 .53% ,1 .6 0 % ,2 .58%。回收率在 93.0 %~ 1 0 1 .4 %之间。分析速度可达每小时 4 0个样品。
In this paper,a new kind of flow injec\| tion system was presented for the determination of Ca、Mg、Al and Fe in phosphatic rock by cation exchange and ICP AES. The working parameters were discussed and optimized.The detection limits were 0.9 μg/L,0.6 μg/L,5.5 μg/L ,1.4 μg/L and RSD( n =10) were 3.44%, 1.53% ,1.60%,2.58% for Ca,Mg,Al and Fe respectively.The recoveries were 93.0%~101.4% and the determination rate of the samples is 40/h
出处
《分析试验室》
CAS
CSCD
2000年第4期11-14,共4页
Chinese Journal of Analysis Laboratory
关键词
流动注射
钙
镁
铝
铁
ICP-AES
磷矿
在线分析
Flow injection
ICP AES
732 strongly acidic cation resin
Ca
Mg
Al
Fe
phosphatic rock