摘要
以松花江采集的生物膜为研究对象，采用改进的Tessier连续萃取方法分析生物膜样品陈化3个月后金属形态分布规律的变化。结果表明，样品陈化使Mn从碳酸盐结合态和铁／锰氧化物结合态向可交换态和残渣态转化，幅度为11.17％-26.27％；样品陈化后Fe从有机结合态和残渣态向铁／锰氧化物结合态转化16.89％-24.97％；原来占总量54.45％-59.56％的有机结合态Cu在样品陈化后均转化为铁／锰氧化物结合态和残渣态；而可交换态和有机结合态的Zn在样品陈化后全部转化为其他形态。其中部分向碳酸盐结合态转化。
Distribution of heavy metals in the natural surface coatings collected from the Songhua River was studied before and after their aging for 3 months. It was indicated that sample aging resulted in 11.17% - 26.27% manganese to turn from carbonate-associated and Fe/Mn-oxides phases to exchangeable and residual phases. After sample aging, some iron associated with organic matters and residues （ 16.89% - 24.97% of iron） transferred to Fe/Mn-oxides phases. All copper associated with organic matters transferred to Fe/Mnoxides and residual phases after aging. Exchangeable and organic matters-associated zinc transferred to other phases completely because of aging.
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2008年第5期1001-1005,共5页
Journal of Jilin University:Science Edition
基金
国家"973"计划项目基金(批准号:2004CB3418501)
华北电力大学引进高层人才科研启动基金
