土壤全磷全钾同时测定方法研究

目的]研究同时测定土壤中全磷全钾的方法。方法]土壤消解后,按照仪器的标准曲线范围,选择合适的稀释倍数,测定消解液的磷钾含量,完成土壤样品全磷全钾的测定。结果]磷和钾的线性系数分别达0.999 9和1.000 0;土壤标准样品含量均在标准值范围内。该方法的测定结果与国标法无显著差异。结论]该研究为土壤中全磷、全钾的检测提供了一种快速、高效的检测分析方法,对土壤中全磷、全钾大量样品的检测和快速指导生产具有现实意义。

Study on Simultaneous Determination of Total Phosphorus and Total Potassium in Soil

Objective]To study a method for simultaneous determination of total phosphorus and total potassium in soil.Method]According to the range of the standard curve of the instrument, choosing the appropriate dilution multiple, the phosphorus and potassium content in the digestion solution were determined to complete the determination of total phosphorus and potassium in soil samples.Result]The linear coeffi-cients of phosphorus and potassium were 0.999 9 and 1.000 0,respectively.The standard soil samples could be accurately within the standard value range,and there was no significant difference between the study and natinal standard method.Conclusion]The study provides a rapid and efficient method for the detection and analysis of total phosphorus and total potassium in soil,and it is of practical significance to detect the content of and total phosphorus total potassium in soil and quickly guide the production.