MA Xing-juan,FEI Fa-yuan.Determination of Useful Element of the Effective Phosphorus in Calcareous Soil by ICP-AES[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(06):42-45.[doi:10.11942/j.issn1002-2767.2016.06.0042]
ICP-AES法测定石灰性土壤中的有益元素有效磷
- Title:
- Determination of Useful Element of the Effective Phosphorus in Calcareous Soil by ICP-AES
- 文章编号:
- 1002-2767(2016)06-0042-04
- Keywords:
- ICP-AES; calcareous soil; useful element; available phosphorus
- 分类号:
- S151.9+5;O657.3
- 文献标志码:
- A
- 摘要:
- 为寻求高效、大规模的土壤有效磷的测定方法,采用碳酸氢钠浸提ICP-AES测定石灰性土壤中有益元素中的有效磷含量,研究了浸提时间、浸提温度、样品稳定时间等因素对浸提结果的影响。结果表明:通过试验优选仪器参数和分析谱线,在选定波长为213.618 nm测定,国家一级标准物质的测定值与标准值相吻合,分析结果准确可靠,精密度和准确度都能很好的满足要求,检出限为0.18 mg?kg-1,标准加入的回收率在96.38%~103.3%。该法操作简单、快捷、无污染,能使有效磷的分析趋于自动化,使得高效、大规模的土壤有效磷的测定分析成为现实,可成功地适用于石灰性土壤样品中有效磷的测定,值得大面积的推广与应用。
- Abstract:
- In order to search for the efficient and large-sclae determination method of available phosphorus in soil,the available phosphorus in calcareous soil was determinated by sodium bicarbonate leaching ICP-AES.The effect of extraction time,extraction temperature and sample stability time on leaching were studied.The results showed that through the optimizing instrument parpmeter experiment and analysis spectral lines,wavelength was 213.618 nm,national standard material of measurements was in conformity with the standard values,the analysis results were accurate and reliable,precision and accuracy could well meet the requirements,the detection limit was 0.18 mg?kg-1 ,recovery of standard addition was between 96.38%~103.3%.The operation was simple,fast,no pollution,and lead to the automation analysis of the available phosphorus,made the large-scale to become a reality,the method of the determination of available phosphorus in soil analysis could be successfully applied to the determination of the available phosphorus in calcareous soil samples,the method was worthy of widespread popularization and application.
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备注/Memo
收稿日期:2016-05-09