Agemian H, Chau A S
Arch Environ Contam Toxicol. 1977;6(1):69-82. doi: 10.1007/BF02097751.
4.0 N HNO3-0.7 N HCl, 0.5 N HCl, 1 N hydroxylamine hydrochloride-25% acetic acid and 0.05 N EDTA were investiagted as extractants of nondetrital heavy metals from the sediments of the Rideau River. A comparison of these partial extraction methods with a total extraction method, showed that the 4.0 N HNO3-0.7 N HCl attacks the silicate crystal lattice considerably. 1 N hydroxylamine hydrochloride-25% acetic acid was found to be unsuitable for copper extraction. Both of the other two methods were suitable for the simultaneous extraction of Cd, Cu, Pb, Zn, Ni, Cr, Co, Mn, Fe, and Al from the organic adsorbed and precipitated phases of sediments. They both gave a measure of nondetrital heavy metals in sediments and are thus useful to environmental contamination studies.
研究了4.0N硝酸 - 0.7N盐酸、0.5N盐酸、1N盐酸羟胺 - 25%乙酸和0.05N乙二胺四乙酸（EDTA）作为从里多河沉积物中提取非碎屑重金属的萃取剂。将这些部分萃取方法与全萃取方法进行比较，结果表明4.0N硝酸 - 0.7N盐酸对硅酸盐晶格有相当大的侵蚀。发现1N盐酸羟胺 - 25%乙酸不适合用于铜的萃取。另外两种方法都适用于从沉积物的有机吸附相和沉淀相中同时萃取镉、铜、铅、锌、镍、铬、钴、锰、铁和铝。它们都能测定沉积物中的非碎屑重金属，因此对环境污染研究很有用。
