按不同浓度盐酸、不同浸取时间来解吸不同粒度的黄河悬沙表层沉积物中的重金属，并用原子吸收分光光度计测定铜、锌、铅、镉的吸附量．实验表明：镉极少吸附于表层沉积物中；铅的吸附本底值不随沉积物粒度变化而改变；铜、锌被吸附的本底值随沉积物粒度变小而增大．此外，浸取酸度和浸取时间对重金属的解吸影响很小．本文有助于了解黄河水中重金属的转移及归宿 Different concentrations of hydrochloric acid and different leaching time were used to desorb the heavy metals in the surface sediments of the Yellow River suspended sediment with different particle sizes. The adsorption capacities of copper, zinc, lead and cadmium were determined by atomic absorption spectrophotometer. Experiments show that: cadmium rarely adsorbed in the surface sediment; lead adsorption background value does not change with the sediment particle size changes; copper, zinc adsorption of the substrate value increases with the sediment particle size becomes smaller. In addition, leaching acidity and leaching time have little effect on the desorption of heavy metals. This article helps to understand the transfer and fate of heavy metals in the Yellow River water