电感耦合等离子发射光谱法与钒钼黄比色法在有效磷含量测定中的应用比较

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中文摘要：在农业生产过程中需要对土壤中的有效磷含量以及肥料中的有效磷含量进行检测，为配方施肥提供重要依据，有效磷检测方法的准确性是评判肥料质量高低、实现配方施肥的关键。研究对电感耦合等离子发射光谱法与钒钼黄比色法这两种有效磷检测方法的灵敏度和准确度进行了比较，明确了电感耦合等离子发射光谱法在 213。6 nm条件下的磷检出限为 0。05 mg/L，钒钼黄比色法在 400 nm检测波长的灵敏度最高，检出限为 0。32 mg/L。对两种检测方法的检测准确度进行比较，结果表明电感耦合等离子发射光谱法对不同浓度的有效磷检测准确度均高于 96%，其准确度受磷浓度的影响小;传统的钒钼黄比色法检测准确度受磷浓度、检测波长影响较大，对磷含量低于 5 mg/L的样品检测准确度下降，且低于电感耦合等离子发射光谱法的检测准确度。研究结果认为对于未知浓度范围的样品，钒钼黄比色法在 400 nm波长检测条件下的检测结果较为理想。

外文标题：Comparison of inductively coupled plasma emission spectrometry and vanadium molybdenum yellow colorimetric methods on available phosphorus determination

外文摘要：In the process of agricultural production,available phosphorus determination of cropland soil and fertilizer is necessary for formula fertilization protocol establishment.The accuracy of detection methods is important for judging the quality of fertilizer and realizing formula fertilization.In this study,the sensitivity and accuracy of inductively coupled plasma emission spectrometry(ICP-OES)and vanadium molybdenum yellow colorimetric methods were compared on available phosphorus determination,it was found that the determination limit of ICP-OES method was 0.05 mg/L at 213.6 nm wavelength,while it was 0.32 mg/L for the vanadium molybdenum yellow colorimetric method at 400 nm.The detection accuracy of the two methods was compared.It showed that the accuracy of ICP-OES method was not affected by phosphorus concentration as the determination accuracy of different phosphorus concentration standard samples was higher than 96%.However,the accuracy of traditional vanadium molybdenum yellow colorimetric method was greatly affected by phosphorus concentration and detection wavelength,as detection accuracy was greatly reduced for samples with phosphorus concentration less than 5 mg/L,and the accuracy was lower than that of ICP-OES method.Based on the results,400 nm detection wavelength was a ideal condition for vanadium molybdenum yellow colorimetric method for phosphorus determination of unknown samples.

外文关键词：

available phosphorusinductively coupled plasma emission spectrometryvanadium molybdenum yellow colorimetric methodfertilizer

作者：

华丽霞、代顺冬、何炼、叶鹏盛、孙小芳、况再银、曾华兰、蒋秋平、张敏

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作者单位：

四川省农业科学院经济作物研究所,四川成都 610300

农业农村部西南作物有害生物综合治理重点实验室,四川成都 610300

关键词：

有效磷电感耦合等离子体发射光谱法钒钼黄比色法肥料

基金：

四川省科技厅自然科学基金项目现代农业产业技术体系现代农业产业技术体系四川豆类杂粮创新团队四川省财政自主创新项目四川省财政自主创新项目四川省农业科学院拔尖人才研究基金

项目编号：

2023NSFSC1261CARS-21SCCXTD-2020-202022ZZCX0812024ZZCX0072020BJRC023

出版年：

2024

DOI：

10.11838/sfsc.1673-6257.23285

中国土壤与肥料

中国农业科学院农业资源与农业区划研究所中国植物营养与肥料学会

中国土壤与肥料

CSTPCD北大核心

影响因子：1.197

ISSN：1673-6257

年,卷(期)：2024.(4)