【摘要】 用二氧化硅作空白填加物对照的改进丘林法,测定土壤有机质含量,不需乘以氧化校正系数,测定结果即可达到标准的干烧法水平。准确度由原来的93%提高到99～100%,同时手续简捷,节约试剂。更多还原

【Abstract】 Tyurin’s method modified by using silica dioxide as the blank determination additive in contrast is used for determination of soil organic content without being multiplied by oxidized correction coefficient.The results from determina- tion can well agree with the dry combustion method.The accuracy is raised from the original 93% to 99-100%.Meanwhile,the procedures are simple with more agents saved.更多还原