在1MKBr—2MHCI 底液中,铟和锡呈现良好清晰的示波极谱峰,半波电位分别为-0.47和-0.59伏(相对饱和甘汞电极)。本文介绍铝合金中低含量铟、锡的示波极谱测定。称取0.2000克样品于150毫升烧杯中,逐次添加总共8毫升1:1盐酸溶解样品。然后将溶液移入50毫 Indium and tin show well-defined oscillopolarographic peaks in 1MKBr-2M HCl, with half-wave potentials of -0.47 and -0.59 volts, respectively, relative to saturated calomel electrodes. This article describes the oscillopolarographic determination of low levels of indium and tin in aluminum alloys. Weigh 0.2000 grams of sample into a 150 ml beaker and add a total of 8 ml of 1: 1 hydrochloric acid to the sample in succession. The solution was then transferred to 50 milliliters