周琳燕, 古雅倩, 欧阳小琴, 肖胜辉, 张斌斌, 万莹, 王春霞, 冯长杰. 电感耦合等离子体原子发射光谱法测量铝锂合金中的Ag含量[J]. 南昌航空大学学报(自然科学版), 2014, 28(3): 93-98. DOI: 10.3969/j.issn.1001-4926.2014.03.016
引用本文: 周琳燕, 古雅倩, 欧阳小琴, 肖胜辉, 张斌斌, 万莹, 王春霞, 冯长杰. 电感耦合等离子体原子发射光谱法测量铝锂合金中的Ag含量[J]. 南昌航空大学学报(自然科学版), 2014, 28(3): 93-98. DOI: 10.3969/j.issn.1001-4926.2014.03.016
ZHOU Lin-yan, GU Ya-qian, OUYANG Xiao-qin, XIAO Sheng-hui, ZHANG Bin-bin, WAN Ying, WANG Chun-xia, FENG Chang-jie. Determination of Silver in Aluminum-Lithium Alloy by Inductively Coupled Plasma-Atomic Emission Spectrometry[J]. Journal of nanchang hangkong university(Natural science edition), 2014, 28(3): 93-98. DOI: 10.3969/j.issn.1001-4926.2014.03.016
Citation: ZHOU Lin-yan, GU Ya-qian, OUYANG Xiao-qin, XIAO Sheng-hui, ZHANG Bin-bin, WAN Ying, WANG Chun-xia, FENG Chang-jie. Determination of Silver in Aluminum-Lithium Alloy by Inductively Coupled Plasma-Atomic Emission Spectrometry[J]. Journal of nanchang hangkong university(Natural science edition), 2014, 28(3): 93-98. DOI: 10.3969/j.issn.1001-4926.2014.03.016

电感耦合等离子体原子发射光谱法测量铝锂合金中的Ag含量

Determination of Silver in Aluminum-Lithium Alloy by Inductively Coupled Plasma-Atomic Emission Spectrometry

  • 摘要: 通过采用电感耦合等离子体原子发射光谱法(ICP-AES)测量铝锂合金中Ag的含量,探讨了铝锂合金的溶解方法,优化了测量参数。结果表明,使用纯净水、分析纯硝酸和分析纯硫酸时,当采用v(H2O):v(HNO3):v(H2SO4)=1:1:0.3,加热温度为250~300℃,可在30min内快速溶解铝锂合金;采用Ag 328.068nm分析谱线作为溶液中Ag含量的分析谱线;获得Ag含量测量的最佳工作参数为:射频功率:1.0kW,雾化气流量:0.75L/min,观察高度:10mm;采用基体匹配法,消除基体的干扰。该方法的检出限为1.4888mg/L;样品的回收率为99.87%~100.57%,相对标准偏差RSD(n=10)为0.226%。该方法准确、快速,具有良好的精密度和准确度,能够满足日常生产检查需要。

     

    Abstract: In this paper, the Silver content in Al-Li alloy was determined by inductively coupled plasma-atomic emission spectrometry(ICP-AES). Moreover, the dissolution method of the Al-Li alloy and the instrument parameters were also investigated. The results show that,using pure water、analytical reagent HNO3 and analytical reagent H2SO4, the Al-Li alloy could dissolved completely in 30min when the volume ratio of v(H2O):v(HNO3):v(H2SO4)equaled to 1:1:0.3 and the temperature controlled ranged from 250~300℃. Ag 328.068nm was chosen as the analytical line to characterize the Ag content in the solutions. The optical instrument parameters were determined as following:1000W of frequency power, 0.75L/min of nebulizer gas flow and 10 mm of view distance. The matrix induced interference was eliminated by matrix matching method. The detection limits of the method was 1.4888g/g for Ag. The recovery of the method is 99.87%~100.57% for the Ag element with precision of 0.226% RSD (n=10).This method was accurate and simple with satisfactory precision and was suitable for routine quality control analysis.

     

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