土壤样品采集和化学元素分析全过程质量控制比较研究

利用SAX模型，对于中国南方3个省共计13个茶园的土壤中的可提取态P元素的测定实验进行了全程质量控制。通过计算实例以及与相关文献计算结果的对比分析，给出了SAX过程的评价标准，并对于ASX模型的评价过程中的一些问题进行了深入探讨。指出SAX模型评价标准在使用过程中要注意与实验设计和任何改进措施的费用效益分析相结合。

Contrast Study on Quality Control Schemes in Soil Sampling and Chemical Element Analysis

Sampling and analytical quality control scheme(SAX) were applied to the determination experiment of readily absorbable P in soils sampled from 13 tea gardens in 3 provinces in southeast China. According to the contrast analysis of relative references and the result of this paper, the assessment standard of SAX in environental sampling and chemical element analysis procedure was presented. Some problems in applying SAX model were also discussed. It was recommended that the assessment standard of SAX should be considered with the experiment designing plan and the cost benefit analysis of any improving measures.