[电感耦合等离子体发射光谱法分析玉米秸秆中的微量元素]

[Analysis of trace elements in corn stover by ICP-AES].

作者信息

Sun Yong, Yang Gang, Zhang Jin-ping, Li Zuo-hu

机构信息

National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Feb;27(2):371-3.

PMID:17514979

Abstract

The contents of trace elements of Zn, Mg, Mn, Sr, Fe, Co, Ni and Se in the corn stover collected from Shanxi, Beijing, Xinjiang, Shandong, Neimeng, Gansu, Shaanxi, Jilin, Yunnan and Jiangsu, 10 different provinces in China, were determined by ICP-AES using nitrifying method of high pressure nitrifying pot. This method proved to be easily operational, rapid, highly sensitive, and accurate, and can be adopted as the method of determining many elements simultaneously. The recovery yields of Zn, Mg, Mn, Sr, Fe, Co, Ni and Se are 96.55%-103.8%, 98.0%-102.5%, 95.7%-104.1%, 97.1%-103.2%, 95.1%-101.3%, 95.1%-104.5%, 97.0%-103.5% and 95.9%-104.6%, respectively, and the relative standard deviation of all the elements is all below 5.00%.

摘要

采用高压消解罐硝化法，利用电感耦合等离子体发射光谱仪（ICP - AES）测定了采自中国山西、北京、新疆、山东、内蒙、甘肃、陕西、吉林、云南和江苏10个不同省份的玉米秸秆中锌（Zn）、镁（Mg）、锰（Mn）、锶（Sr）、铁（Fe）、钴（Co）、镍（Ni）和硒（Se）的微量元素含量。该方法操作简便、快速、灵敏度高、准确，可作为同时测定多种元素的方法。锌、镁、锰、锶、铁、钴、镍和硒的回收率分别为96.55% - 103.8%、98.0% - 102.5%、95.7% - 104.1%、97.1% - 103.2%、95.1% - 101.3%、95.1% - 104.5%、97.0% - 103.5%和95.9% - 104.6%，所有元素的相对标准偏差均低于5.00%。