摘要
由于高纯氢氧化钠中铜和铁的含量较低,使用原子吸收分光光度计来分析高纯氢氧化钠中微量铁、铜元素所需的取样量较大,同时由于样品为强碱性,其溶液中钠离子浓度高,对于测定有着较大基体干扰,通过实验比较标准曲线法和标准加入法的检测结果,选出可以有效的减少基体干扰影响,更准确的测定高纯强碱中铁和铜的含量的方法。
Due to the content of copper and iron in high purity sodium hydroxide is low,the use of atomic absorption spectrophotometer to analyze the trace iron,copper elements in high purity sodium hydroxide for sampling amount is larger,at the same time as the sample for strong alkaline,its high concentration of sodium ions in the solution,for the determination of a large matrix interference,by comparing the experimental standard curve method and standard addition method of test results,A method to determine the content of iron and copper in high purity strong base is selected to reduce the interference of matrix.
作者
肖燕燕
滕琪
钟华兵
胡晓辉
贡宇
XIAO Yan-yan;TENG Qi;ZHONG Hua-bing;HU Xiao-hui;GONG Yu(Jiangxi Lixin Testing Technology Co.,Ltd.,Nanchang 330100,China)
出处
《世界有色金属》
2021年第23期139-141,共3页
World Nonferrous Metals
关键词
高纯氢氧化钠
强碱
火焰原子吸收分光光度计
铁和铜
标准曲线法
标准加入法
high purity sodium hydroxide
Strong alkali
Flame atomic absorption spectrophotometer
Iron and copper
Standard curve method
Standard addition method
