由于工业废水的排放和污染 ,土壤中铬的含量越来越高 ,因此土壤中铬含量的实验室检测越来越引起人们的重视。测定土壤中的铬含量通常采用高锰酸钾氧化法 ,但是此法分析时间长、操作步骤繁琐、工作量大、仪器磨损严重。针对上述问题 ,对原高锰酸钾氧化法中的样品处理、离心等步骤进行了改进 ,克服了原法的一些缺点 ,缩短了分析时间 ,大大提高了分析效率 ,并保持了原法分析的精确度 Due to the emission and pollution of industrial wastewater, the content of chromium in soil is getting higher and higher, so laboratory testing of chromium in soil has drawn more and more attention. Determination of chromium in soil usually potassium permanganate oxidation method, but the analysis of this method for a long time, the tedious steps, heavy workload, equipment wear and tear. In view of the above problems, the steps of sample processing and centrifugation of the original potassium permanganate oxidation method are improved, overcoming some shortcomings of the original method, shortening the analysis time, greatly improving the analysis efficiency, and maintaining the original analysis Accuracy