錫和銅等是多数鎢矿的伴生元素。用碘量法定錫时,鎢、銅是主要的干扰元素。如果把鎢、銅与錫石分离,手續很是复杂,最好的解决办法是加入某种試剂,掩蔽鎢、銅的干扰。鎢的掩蔽剂的应用,許多化驗工作者早已熟知,本文着重对銅的掩蔽剂的应用做一介紹。 Tin and copper are the accompanying elements of most tungsten mines. With iodine legal tin, tungsten, copper is the main interference element. If the separation of tungsten, copper and cassiterite, the procedure is very complicated, the best solution is to add some reagents, masking tungsten, copper interference. The use of tungsten masking agents, many laboratory workers already well known, this article focuses on the application of copper masking agent to make an introduction.