据广东师范学院化学系分析化学教研组介绍,土壤有机质速测(水相酸法),与常用的油浴法比,有简单快速的优点.但经我们应用,发现配成的标准色阶颜色变化不明显,在白色点滴板的8个编号孔穴中,都表现为彼此无甚差异的桔黄色,难以应用.我们分析,各色阶此时都呈桔黄色,是因为反应中氧化剂重铬酸钾浓度偏高,或有 According to the introduction of the Analytical Chemistry Research Group of Department of Chemistry, Guangdong Normal University, soil organic matter velocity measurement (water phase acid method) has the advantage of simple and quickness compared with the common oil bath method, but after our application, we found that the standard color gradation Obviously, in the white dotted plate of the eight numbered holes, showed no difference between each other orange, it is difficult to apply.We analyze the various levels are orange at this time, because the reaction of potassium oxidizer concentration High, or have