极谱法测定钨已有若干报导。由于选择性较差,铅、锡、砷(Ⅲ)等元素严重干扰钨的测定,实际当用于各种样品分析时,大多需要预分离,只有组成比较简单的像钨钢一类的样品,可以不经分离直接测定其中含量较高的钨。因此,极谱法测定钨没有得到广泛的应用。我们在试验考察盐酸、硫酸和磷酸,或它们的二 Polarographic determination of tungsten has been reported several times. Due to poor selectivity, elements such as lead, tin, arsenic (III), etc. seriously interfere with the determination of tungsten. Most of the samples used for the analysis of various samples actually require pre-separation. Only relatively simple samples such as tungsten steel, It can be directly measured without separation of tungsten content higher. Therefore, polarographic determination of tungsten has not been widely used. We are experimenting with hydrochloric acid, sulfuric acid and phosphoric acid, or two of them