摘要
针对目前有效Fe、Mn、Cu、Zn采用的标准方法[NY/T 890—2004或LY/T(1260-1264)-1999]存在浸提速度慢、大规模测样不方便的缺点,利用超声的强烈振动及扰动效应,实现对样品有效Fe、Mn、Cu、Zn的快速提取,相较于标准方法提速66.67%,并采用了具有测定简单、快速、精确的电感耦合等离子体原子发射光谱法对提取液中有效Fe、Mn、Cu、Zn的测定,该方法检出限低,有效Fe、Mn、Cu、Zn的检出限分别为0.02,0.01,0.01,0.007μg/g,对不同酸度土壤标准物质有效Fe、Mn、Cu、Zn含量的测定,发现本方法具有准确度、精密度好的优点,有效Fe、Mn、Cu、Zn的测定值都在认定值的不确定度范围内,适用于不同酸度土壤有效Fe、Mn、Cu、Zn含量的大批量快速、准确测定。
Since the standard methods NY/T 890—2004 and LY/T(1260-1264)-1999 have the shortcomings of slow extraction speed and inconvenient when large-scale samples were analyzed,this paper reported the rapid extraction of available Zn,Mn,Fe and Cu from samples by vibration and disturbance effects of ultrasound,the speed is increased by 66.67%compared with the standard method.In addition,the inductively coupled plasma atomic emission spectrometry with advantage of simple,rapid and accurate has the low detection limit,the detection limits of available Fe,Mn,Cu and Zn were 0.02,0.01,0.01μg/g and 0.007μg/g,respectively.The available Zn,Mn,Fe and Cu of standard substances with different acidity shows that this method has such advantages as high accuracy and good precision,the measured values are all in the uncertainty range of the identified values,so this method can be used for the rapid and accurate determination of soil samples with the content of available Fe,Mn,Cu and Zn by large quantities.
作者
谢元
杨春
路润峰
鱼甜甜
XIE Yuan;YANG Chun;LU Runfeng;YU Tiantian(Shaanxi Institute of Geological,Xi’an 710005,China;Shaanxi Experimental Center of Geological Survey,Xi’an 710065,China;Shaanxi Center of Mineral Geological Survey,Xi’an 710065,China)
出处
《应用化工》
北大核心
2025年第1期116-119,125,共5页
Applied Chemical Industry
基金
陕西省公益性地质调查项目(公益[2020]29,公益[2024]10)。
关键词
超声浸提
发射光谱
有效铁
有效锰
有效铜
有效锌
ultrasonic extraction
emission spectrum
available iron
available manganese
available copper
available zinc
