ICP-OES法测定镍硼合金中磷、硫量  

Determination of P and S content in nickel boron alloy by ICP-OES method

作　　者：李冀辉 李蒙 杨帆 刘丽静[5] LI Jihui;LI Meng;YANG Fan;LIU Lijing(Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 330013,Jiangxi,China;Inner Mongolia Rare Earth Ovonic Metal Hydride Co.,Ltd.,Baotou 014030,Nei Mongol,China;Baotou Research Institute of Rare Earths,Baotou 014030,Nei Mongol,China;State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou 014030,Nei Mongol,China;Baotou Teachers College,Baotou 014030,Nei Mongol,China)

机构地区：[1]江西理工大学材料冶金化学学部,江西赣州341400 [2]内蒙古稀奥科贮氢合金有限公司,内蒙古包头014030 [3]白云鄂博稀土资源研究与综合利用全国重点实验室,内蒙古包头014030 [4]包头稀土研究院,内蒙古包头014030 [5]包头师范学院,内蒙古包头014030

出　　处：《金属功能材料》2024年第3期43-47,共5页Metallic Functional Materials

基　　金：国家自然科学基金项目(22065028);包头师范学院科研项目(BSYKJ2022-ZY02);内蒙古教育厅重点项目(NJzz23110)。

摘　　要：镍硼合金中的磷、硫是有害元素,会影响合金材料及其应用产品的塑性、韧性及焊接性能,快速、准确地测定镍硼中磷、硫的含量对其生产及应用具有重要的指导意义。采用基体匹配和光谱拟合技术消除基体光谱干扰,建立ICP-OES法测定镍硼中磷、硫量的分析方法。试验结果表明,磷、硫的检出限分别为0.035、0.022μg/mL,磷、硫的分析波长分别为185.827,185.878及181.972 nm。按照方法,对样品中磷、硫进行标加回收试验,回收率为85%~108%。方法用于实际样品及两个合成样品的测定,结果的相对标准偏差(RSD,n=11)为1.26%~9.20%。同时使用试验方法和分光光度法、高频红外光谱法测定硼镍合金中磷、硫量,测定结果基本一致。方法简捷快速,精密度、准确度高。P and S in nickel boron alloys are harmful elements that can affect the plasticity,toughness,and welding performance of alloy materials and applied products.The rapid and accurate determination of P and S content in nickel boron has important guiding significance for its production and application.Using matrix matching and spectral fitting techniques to eliminate matrix spectral interference,an analytical method for determining P and S content in nickel boron using ICP-OES was established.The results showed that the detection limits of P and S were 0.035μg/mL and 0.022μg/mL.The wavelengths of P and S were 185.827 nm,185.878 nm and 181.972 nm.According to the method,standard addition recovery experiments were conducted on P and S in the sample,with a recovery rate of 85%~108%.The proposed method was applied for the determination of P and S in nickel boron alloys samples.The relative standard deviations(RSD,n=11)of determination results were between 1.26%and 9.20%.Meanwhile the content of P and S in nickel boron sample was also determined by spectrophotometry and high-frequency infrared spectroscopy,the results were basically consistent with those obtained by the experimental method.The method is concise and quick with high precision and accuracy.

关 键 词：镍硼合金 磷 硫 ICP-OES法 

分 类 号：O657.31[理学—分析化学] TG146.15[理学—化学]