电感耦合等离子体原子发射光谱法测定饲料级磷酸二氢钙中铬的含量
Determination of Chromium Content in Feed Grade Calcium Dihydrogen Phosphate by Inductively Coupled Plasma Atomic Emission Spectroscopy
陈秀琼 1陈雨 1陈莉 1高静 1蓝苑玲 1李星沄1
作者信息
- 1. 瓮福[集团]有限责任公司 贵州福泉 550501
- 折叠
摘要
提出了电感耦合等离子体原子发射光谱法(ICP-OES)测定饲料级磷酸二氢钙中铬的含量.样品中加入盐酸(1+1)溶液 20 mL,定容、过滤后,直接采用ICP-OES法进行测定.结果表明:ICP-OES法可以稳定测定饲料级磷酸二氢钙中铬的含量,通过对仪器参数优化,测定耗时不超过 40 min;方法的回收率为 99.2%～102.0%,测定结果的相对偏差不超过 10%,符合国家标准《饲料中铬的测定》(GB/T 13088-2006)的要求.
Abstract
Inductively coupled plasma atomic emission spectroscopy(ICP-OES)is proposed for the determination of chromium content in feed grade calcium dihydrogen phosphate.20 mL of hydrochloric acid(1+1)solution is added to the sample,fixed,filtered and then directly determined by ICP-OES method.The results show that ICP-OES method can stably determine the chromium content in feed grade calcium dihydrogen phosphate.By optimizing the instrument parameters,the measurement time does not exceed 40 minutes.The recovery rate of the method is 99.2%to 102.0%,and the relative deviation of the determination results does not exceed 10%,which meets the requirements of the national standard"Determination of Chromium in Feeds"(GB/T 13088-2006).
关键词
电感耦合等离子体原子发射光谱法/磷酸二氢钙/饲料级/铬Key words
inductively coupled plasma atomic emission spectroscopy/calcium dihydrogen phosphate/feed grade/chromium引用本文复制引用
出版年
2024
NETL
NSTL
万方数据