Determination of lead and tin in bronze materials in oil bearings by selective dissolution separation-inductively coupled plasma atomic emission spectrometry
ZHOU Xilin1,2, WANG Jiaona1,2, HUANG Qingqing1,2, MI Haipeng1,2, LI Xiaofeng1
1. Chong Qing Academy of Metrology and Quality Inspection,Chongqing 401123,China; 2. National Quality Supervision and Inspection Center for Aluminum Magnesium Alloys and Products,Chongqing 408403,China
Abstract：The bronze oil bearing is the combination of two materials, i.e., carbon steel and bronze. For the determination of lead and tin in bronze materials, the selective dissolution separation method was used. The immersion solution was prepared by dissolving 80 mL of hydrogen peroxide, 75 g of ammonium persulfate, 60 g of ammonium citrate, 2 g of hexamethylenetetramine and 40 g of ammonium chloride in water followed by dilution to 1 L. The bronze sample was digested using the immersion solution prepared. The bronze material was completely released from the carbon steel back in the immersion solution at pH 8-9 and (35±2) ℃ by ultrasonic. The excessive chemicals were removed by boiling. Then aqua regia was added to dissolve the insoluble matters in the immersion solution until the solution was clear. The influence of matrix effect was eliminated by matrix matching method. The contents of lead and tin were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The method for the determination of lead and tin in bronze materials in oil bearings by ICP-AES after selective dissolution separation was established. The concentration of lead (5.0-50.0 mg/L) and tin (1.0-20.0 mg/L) showed good linear relationship with the corresponding emission intensity, and the linear correlation coefficients were higher than 0.999. The limits of detection for lead and tin were 0.5 mg/L and 0.1 mg/L, respectively. The contents of lead and tin in three oil bearing samples were determined according to the experimental method, and the relative standard deviations (RSD, n=5) of determination results were within 2%. The spiked recoveries were between 99.0% and 101.4%. The experimental method was compared with the national standard method GB/T 5121, and the found results were consistent.
周西林, 王娇娜, 黄晴晴, 弥海鹏, 李晓锋. 选择性溶解分离-电感耦合等离子体原子发射光谱法测定含油轴承中青铜材料中铅和锡[J]. 冶金分析, 2024, 44(2): 18-23.
ZHOU Xilin, WANG Jiaona, HUANG Qingqing, MI Haipeng, LI Xiaofeng. Determination of lead and tin in bronze materials in oil bearings by selective dissolution separation-inductively coupled plasma atomic emission spectrometry. , 2024, 44(2): 18-23.
[1] 吴开霞,丁渔庆,王尹,等.金属基烧结含油轴承的研究现状[J].热加工工艺,2021,50(23):7-10. WU Kaixia,DING Yuqing,WANG Yin,et al.Research situation of metal-based sintered oil bearing[J].Hot Working Technology,2021,50(23):7-10. [2] 胡维铸,陈宇,牟英华,等.辉光放电原子发射光谱法测定镀锌薄板中多元素[J].冶金分析,2021,41(5):28-34. HU Weizhu,CHEN Yu,MU Yinghua,et al.Determination of multi-elements in galvanized sheet by glow discharge atomic emission spectroscopy[J].Metallurgical Analysis,2021,41(5):28-34. [3] 杨明,狄平.辉光放电发射光谱法在材料分析中的应用[J].热处理,2008,24(1):60-63. YANG Ming,DI Ping.Application of glow discharge optical emission spectrometer to material analysis[J].Heat Treatment,2008,24(1):60-63. [4] 周韵,徐嘉垚,孙琦.激光烧蚀-电感耦合等离子体质谱法在食品接触金属材料镀层及其基材分析中的应用[J]. 理化检验(化学分册),2019,55(7):853-858. ZHOU Yun,XU Jiayao,SUN Qi.Application of LA-ICP-MS to analysis of coatings and its metallic matrixes of food-contacting metallic materials[J].Physical Testing and Chemical Analysis(Part B:Chemical Analysis),2019,55(7):853-858. [5] 毛振伟.X射线荧光光谱理论α系数法测定古青铜钱币中的铅铜锡[J].光谱学与光谱分析,1999,19(5):738-741. MAO Zhenwei.Determination of Pb,Cu and Sn in ancient bronze coins using X-ray fluorescence theoretical alpha coefficient method[J].Spectroscopy and Spectral Analysis,1999,19(5):738-741. [6] 喻银谷,麻三清,崔秋红.电镀铜钢板镀铜层中铜的测定法[J].冶金分析,1993,13(2):60. YU Yingu,MA Sanqing,CUI Qiuhong.Copper coated steel plate-determination of copper in copper coating[J].Metallurgical Analysis,1993,13(2):60. [7] 刘丽颖.从铁基体上退除金属镀层的方法[J].低碳世界,2017(36):337-338. LIU Liying.A method of removing a metal coating from an iron substrate[J].Low Carbon World,2017(36):337-338. [8] 甄文柱,苟波,王朋洲,等.坡莫合金纤维退镀铜工艺研究[J].电镀与涂饰,2022,41(1):28-31. ZHEN Wenzhu,GOU Bo,WANG Pengzhou,et al.Study on stripping of copper coating from permalloy fiber surface [J].Electroplating & Finishing,2022,41(1):28-31. [9] 李芬,周西林.电感耦合等离子体原子发射光谱法测定彩钢板中的镀锌层质量[J].理化检验(化学分册),2016,52(5):563-565. LI Fen,ZHOU Xilin.Inductively coupled plasma atomic emission spectrometry determination of the quality of zinc layer choi steel[J].Physical Testing and Chemical Analysis (Part B:Chemical Analysis),2016,52(5):563-565. [10] 雷惊雷,李凌杰,蔡生民,等.弱碱性介质中氯离子对铜电极腐蚀行为的影响[J].物理化学学报,2001(12):1107-1111. LEI Jinglei,LI Lingjie,CAI Shengmin,et al.Effect of Cl—on corrosion behavior of copper electrode in weak-alkaline medium[J].Acta Physico-Chimica Sinica,2001(12):1107-1111.
