熔融制样—X射线荧光光谱法快速测定复合肥中的磷、钾、钙、镁、锰、铁、铜、钠、锌和铝  

Determination of P,K,Ca,Mg,Mn,Fe,Cu,Na,Zn and Al in compound fertilizers by X-ray fluorescence spectrometry with fused glass disc sample preparation

作　　者：任春生[1] 廖海平[1] 鲍惠君[1] 朱迪琦[1] 何阳[1] 

机构地区：[1]北仑出入境检验检疫局,浙江宁波315800

出　　处：《中国土壤与肥料》2011年第1期88-91,共4页Soil and Fertilizer Sciences in China

基　　金：宁波出入境检验检疫局科研基金项目(甬K34-2008)

摘　　要：为实现复合肥样品中多元素的同时分析,采用熔融片法制样,有效地消除了试样的粒度效应,用X射线荧光光谱法测定复合肥样品中磷、钾、钙、镁、锰、铁、铜、钠、锌和铝10个元素,对仪器工作条件进行了试验并选定最佳条件,使各元素测定所要求的灵敏度和准确度得到满足,以8个合成的样品作为校准样品,采用固定理论α影响系数进行回归及基体效应校正,方法精密度(RSD,n=8)≤1.36%,分析结果与化学法进行对照基本一致。A method for the determination of including P,K,Ca,Mg,Mn,Fe,Cu,Na,Zn and Al in compound fertilizers by X-ray fluorescence spectrometry with fused glass disc sample preparation was reported in this paper.The granularity effect in the analysis was eliminated by the fusion method of sam ple-dissolution.The working conditions of the instrument were also studied and optimized to meet with the requirements of sensitivity and accuracy of determination.Eight composed samples were used as the calibration standards.The matrix effect was corrected with fixed theoretical alpha coefficient method.The precision of the method was RSD≤1.36%（n=8）.The results were in agreement with those by chemical methods.

关 键 词：熔融制样 X射线荧光光谱法 复合肥 

分 类 号：S143[农业科学—肥料学]