摘要
用仪器中子活化法分析了1993年9月至1994年8月间兰州城区自然降尘中32种元素的浓度,用离子色谱法测定了7种水溶性阴离子的浓度,计算了元素的富集因子。初步探明了降尘的化学组成及其中元素、水溶性离子的分布和变化规律。
Thirty two elements and seven water-soluble anions in fall dust samples at the Lanzhou urban district during September 1993 to August 1994 were determined by instrumental neutron activation analysis(INAA) and ion chromatography(IC), respectively The enrichment factors(EF) of the elements were also calculated, and the chemical compositions, distributions and seasonal variations of all the elements and anions in the fall dust were preliminarily studied
出处
《核技术》
CAS
CSCD
北大核心
1997年第12期739-743,共5页
Nuclear Techniques
基金
国家自然科学基金
中国科学院核分析技术开放研究实验室资助
关键词
大气降尘
水溶性阴离子
中子活化分析
元素分析
Fall dust, Elements, Water-soluble anions, Neutron activation analysis, Ion chromatography, Enrichment factor