离子色谱法与离子选择电极法测定肥料和土壤调理剂中水溶性氟含量的比较研究  

Comparative study on determination of water-soluble fluorine content in fertilizers and soil amendments by ion chromatography and ion selective electrode method

作　　者：黄均明 陈嘉铭 伍家成 韩岩松[1] 保万魁[1] 王旭[1] 刘红芳[1] HUANG Jun-ming;CHEN Jia-ming;WU Jia-cheng;HAN Yan-song;BAO Wan-kui;WANG Xu;LIU Hong-fang(Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081;Guangdong Institute of World Soil Resources,Guangzhou Guangdong 510385)

机构地区：[1]中国农业科学院农业资源与农业区划研究所,北京100081 [2]广东地球土壤研究院,广东广州510385

出　　处：《中国土壤与肥料》2021年第2期325-330,共6页Soil and Fertilizer Sciences in China

基　　金：国家重点研发计划(2016YFF0201801)。

摘　　要：建立了离子色谱和离子选择电极两种不同方法测定肥料和土壤调理剂中水溶性氟含量。对样品前处理条件进行优化,结果表明,常温超声30 min为最佳的提取条件。实验发现,离子色谱法和离子选择电极法均具有良好的线性关系以及较高的精密度和准确度,加标回收率均在91.0%~108.0%之间,而且对同一样品的测定结果一致性较好,说明这两种方法均能满足肥料和土壤调理剂中水溶性氟含量的分析要求。与离子选择电极法相比较,离子色谱法具有分析速度快,干扰因素少等特点。Two different methods for the determination of water-soluble fluorine in fertilizer and soil conditioner by ion chromatography and ion selective electrode were established.The pre-treatment conditions of the samples were optimized,and the results showed that 30 min ultrasound at room temperature was the best extraction condition.Both ion chromatography and ion selective electrode method showed good linearity,high precision and accuracy,and the standard recovery was between 91.0%and 108.0%.In addition,there was no significant difference in the determination results of the same sample,indicating that both methods could meet the analysis requirements of water-soluble fluorine content in fertilizer and soil conditioner.Compared with ion selective electrode method,ion chromatography has the characteristics of faster analysis speed and less interference factors.

关 键 词：离子色谱法 离子选择电极法 水溶性氟 肥料 土壤调理剂 

分 类 号：S156.2[农业科学—土壤学]