空气隔断连续流动分析法同时测定有机肥料中的氮磷钾

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英文篇名：Determination of Nitrogen,Phosphorus and Potassium in Organic Fertilizer by Continuous Flow Analysis of Air Separation 作者：邵青松 ; 叶蔓莉 ; 王鹏 ; 刘秋霞 英文作者：Shao Qingsong;Ye Manli;Wang Peng;Liu Qiuxia;Institution of Supervision and Inspection Product Quality of Guizhou Province,Guiyang College; 关键词：空气隔断连续流动分析法 ; 有机肥料 ; 氮磷钾 英文关键词：continuous flow analysis of air separation;;organic fertilizers;;nitrogen;;phosphorus;;potassium 中文刊名：SDHG 英文刊名：Shandong Chemical Industry 机构：贵阳学院;贵州省产品质量监督检验院; 出版日期：2019-03-08 出版单位：山东化工 年：2019 期：v.48;No.351 语种：中文; 页：SDHG201905034 页数：3 CN：05 ISSN：37-1212/TQ 分类号：99-101

摘要

建立了测定同时测定有机肥料中氮磷钾的空气隔断连续流动分析法,样品的氮相对标准偏差最高为2.54%,磷相对标准偏差最高为1.98%,钾相对标准偏差最高为3.73%,氮回收率在97.6%～102.4%之间,磷回收率在97.3%～103.1%之间,钾回收率在96.8%～103.3%之间;本法相对NY525-2012《有机肥料》农业部标准测定方法而言操作简便、快速、准确度高,特别适合于大批量有机肥料样品中氮磷钾含量检测。
        The method for continuous flow analysis of air separation was established for simultaneous determination of nitrogen, phosphorus and potassium in organic fertilizers. The highest standard deviation of nitrogen in samples was 2.54 %, the highest standard deviation of phosphorus was 1.98%, and the highest standard deviation of potassium was 3.73%. The nitrogen recovery rate is between 97.6% and 102.4%, the phosphorus recovery rate is between 97.3% and 103.1%, and the potassium recovery rate is between 96.8% and 103.3%.Compared with NY 525-2012 "Organic Fertilizer" standard measurement method of the Ministry of Agriculture, this method is simple, fast, and high in accuracy. It is particularly suitable for the detection of nitrogen, phosphorus, and potassium content in a large number of organic fertilizer samples.

引文

[1]农业部.NY525-2012有机肥料[S].北京:中国农业出版社,2012.
    [2]中国石油和化学工业协会.GB/T22923-2008肥料中氮、磷、钾的自动分析仪测定法[S].北京:中国标准出版社,2008.