摘要
研究了盐酸羟胺 -草酸 -草酸铵体系提取粘土中游离氧化铁及其测量 ,试验表明 ,用此体系提取粘土中的游离氧化铁 ,其测量结果与 DCB法一致 ,而提取及测量所需的时间却较前者短。相对标准偏差 RSD≤ 2 .0 %。
The extraction of free iron oxide from clay by hydroxylamine hydrochloride oxalic acid ammonium oxalate system and its determination was studied. The results show that the amount of iron oxide extracted by this method agree with those by DCB method, and the color developing times of 1,10 phenanthroline Fe 2+ in the system is shorter than in DCB method. The relative standard deviation is less than or equal to 2.0%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2000年第5期204-205,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
国家自然科学基金
广西自然科学基金
关键词
粘土
游离氧化铁
草酸
草酸铵
分离
测定
Clay Free iron oxide Hydroxylamine hydrochloride Oxalic acid Ammonium oxalate
