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

作　　者：陈秀琼 陈雨 陈莉 高静 蓝苑玲 李星沄 CHEN Xiuqiong;CHEN Yu;CHEN Li;GAO Jing;LAN Yuanling;LI Xingyun(Wengfu〔Group〕Co.,Ltd.,Fuquan,Guizhou 550501,China)

机构地区：[1]瓮福[集团]有限责任公司,贵州福泉550501

出　　处：《肥料与健康》2024年第3期67-70,共4页Fertilizer & Health

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。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 

分 类 号：O657.3[理学—分析化学] S816.7[理学—化学]