微量锡的测定方法有火焰原子吸收法、孔雀绿和苯葱酮比色法,前者不仅需要昂贵的仪器设备、基层难普及,而且测锡的灵敏度为2.4μg/ml/1％吸收,方能检出;而采用化学法测定,影响因素较多,而且结果不稳定。正常河水含锡量为1ppb,测定的中值为4ppb,这样水平的含锡量若采用上述两种方法进行测定,显然是很困难的。近年来,极谱催化波应用于地质、冶 Determination of trace tin flame atomic absorption method, malachite green and benzene onions ketone colorimetric method, the former not only expensive equipment, basic difficult to popularize, and the sensitivity of the tin was 2.4μg / ml / 1% absorption, can only Detected; and the use of chemical determination, more influencing factors, and the results are not stable. Normal tin content of 1ppb, the measured median 4ppb, such a level of tin content using the above two methods were measured, it is clearly very difficult. In recent years, polarographic catalytic wave applied to geology, metallurgy