img

QQ群聊

img

官方微信

高级检索

黄金科学技术 ›› 2018, Vol. 26 ›› Issue (2): 234-240.doi: 10.11872/j.issn.1005-2518.2018.02.234

• 采选技术与矿山管理 • 上一篇    下一篇

低氧低分压环境下泡塑吸附—石墨炉原子吸收光谱法测定痕量金的最佳条件选择

聂凤莲1,张浥宁2,王立华1   

  1. 1.中国人民武装警察部队黄金第六支队,青海 西宁 810002;
    2.北京工业大学信息学部,北京 100022
  • 收稿日期:2017-05-17 修回日期:2017-12-25 出版日期:2018-04-30 发布日期:2018-05-19
  • 作者简介:聂凤莲(1970-),女,广西苍梧人,高级工程师,从事分析测试及方法研究工作。1065961783@qq.com

Optimum Condition Selection of Determining Trace Gold by Bubble Plastic Adsorption-Graphite Furnace Atomic Absorption Spectrometry Method Un-der the Environment of Low Oxygen and Low Pressure

NIE Fenglian 1,ZHANG Yining 2,WANG Lihua 1   

  1. 1.No.6 Gold Geological Party of CAPF,Xining 810002,Qinghai,China;2.Faculty of Information Technology,Beijing University of Technology,Beijing 100022,China
  • Received:2017-05-17 Revised:2017-12-25 Online:2018-04-30 Published:2018-05-19

摘要: 针对高海拔地区低氧低分压环境下水沸点低、金溶出率和解脱率低以及仪器工作环境变化的问题,探讨了泡塑吸附—石墨炉原子吸收光谱法测定痕量金时不同溶样时间、泡塑解脱方式、灯电流、狭缝宽度和升温程序对测定结果的影响,确定了该方法的最佳条件。研究得出:在该条件下得到的方法检出限为0.16 ng/g,经国家一级标准物质验证,该方法的准确度和精密度符合规范要求,解决了低氧低分压环境下痕量金测定的难题。

关键词: 低氧低分压环境, 痕量金测定, 富集分离, 泡塑吸附—石墨炉原子吸收光谱法, 高海拔地区

Abstract: Aiming at the problems of low boiling point,low dissolution rate and low desorption rate of gold,and change of working environment of instrument under the environment of low oxygen and low pressure at high altitude area,the influence of different dissolving time,bubble plastic desorption mode,lamp electric current,slit width and heating procedure on the determination result were discussed while determining of trace gold by bubble plastic adsorption-graphite furnace atomic absorption spectrometry method,and the best condition of the method is determined.The results showed that the detection limit of the method is 0.16 ng/ng,the accuracy and precision of the method meet the requirements of standards by first grade standard materials,it solves the problem of determination of trace gold under the environment of low oxygen and low pressure.

Key words: low oxygen and low pressure environment, determination of trace gold, concentration and sepa-ration, bubble plastic adsorption-graphite furnace atomic absorption spectrometry method, high altitude area

中图分类号: 

  • O657.31

[1] 薛光.金的分析化学[M].北京:宇航出版社,1990:94-591.
 Xue Guang.Analytical Chemistry of Gold[M].Beijing:Astronautic Publishing House,1990:94-591.
[2] 李占江.金银及有色金属地勘矿冶分析手册[M].北京:地质出版社,2013:28-262.
 Li Zhanjiang.Handbook of Analysis of Gold and Silver and Nonferrous Metals[M].Beijing:Geological Publishing House,2013:28-262.
[3] 李小红,储溱,张蕾,等.泡沫塑料富集—电感耦合等离子体质谱法测定地球样品中痕量金 [J]资源环境与工程,2006,20(3):329-331.
 Li Xiaohong,Chu Qin,Zhang Lei,et al.Measuration of trace gold in geological samples by goam-in ductively coupled plasma mass spectrometry method[J]Resources Environment and Engineering,2006,20(3):329-331.
[4] 李锟.聚氨酯泡沫塑料富集——ICP-MS 测定化探样中微量金的方法[J].化工矿产地质,2007,29(4):242-244.
 Li Kun.Enrichment of polyaminoester foamed plastics measure to determine the trace Au by ICP-MS[J].Geology of Chemical Minerals,2007,29(4):242-244.
[5] 张勇,王玉功,刘建军.封闭溶样—电感耦合等离子体质谱法测定地质样品中痕量金[J].中国无机分析化学,2013,3(1):34-37.
 Zhang Yong,Wang Yugong,Liu Jianjun.Determination of trace gold in geological samples by inductively coupled plasma mass spectrometry with pressurized sample decomposition technique[J].Chinese Journal of Inorganic Analytical Chemistry,2013,3(1):34-37.
[6] 孙晓玲,于照水,张勤.泡沫塑料吸附富集—石墨炉原子吸收光谱法测定勘查地球化学样品中超痕量金[J].岩矿测试,2002,21(4):266-269.
 Sun Xiaoling,Yu Zhaoshui,Zhang Qin.Determination of ultra-trace gold in geochemical exploration samples by GFAAS after preconcentration with polyurethane foam[J].Rock and Mineral Analysis,2002,21(4):266-269.
[7] 张碧玲,孙爱琴,姚文生,等.石墨炉原子吸收测定岩石样品中痕量金的研究[J].黄金,2005,26(5):42-44.
 Zhang Biling,Sun Aiqin,Yao Wensheng,et al.Research on trace gold determination in rock samples using graphite oven atomic absorption method[J].Gold,2005,26(5):42-44.
[8] 艾晓军,鞠军.泡沫塑料富集分离金中几个问题的探讨[J].黄金,2008,29(2):46-49.
 Ai Xiaojun,Ju Jun.Research on several problems in enrichment and separation of gold with foam plastic[J].Gold,2008,29(2):46-49.
[9] 宋丽华,金一.石墨炉原子吸收光谱法测定化探样品中痕量金[J].理化检验—化学分册,2009,45(6):692 -694.
 Song Lihua,Jin Yi.GFAAS determination of trace amount of gold in geochemical exploration sample[J].Physical Testing and Analysis Part B:Chemical Analysis,2009,45(6):692-694.
[10] 艾晓军,聂凤莲,陈雪,等.Z-5000石墨炉原子吸收光谱法测定痕量金检出限的探讨[J].黄金科学技术,2011,19(4):65-67.
 Ai Xiaojun,Nie Fenglian,Chen Xue,et al.Study on detection limit of determination of trace gold by Z-5000 graphite furnace atomic absorption spectrometry[J].Gold Science and Technology,2011,19(4):65-67.
[11] 王頔,汪君.泡塑吸附—石墨炉原子吸收光谱法测定勘查地球化学样品中痕量金[J].新疆师范大学学报(自然科学版),2014,33(2):27-31.
 Wang Di,Wang Jun.Determination of trace gold in geochemical exploration samples by GFAAS after preconcentration with polyurethane foam[J].Journal of Xinjiang Normal University(Natural Sciences Edition),2014,33(2):27-31.
[12] 王祝,邵蓓,邬国栋,等.低氧低分压环境下泡塑吸附—石墨炉原子吸收光谱法测定化探样品中的痕量金[J].岩矿测试,2010,29(3):282-286.
 Wang Zhu,Shao Bei,Wu Guodong,et al.Determination of trace gold in geochemical samples by graphite furnace atomic absorption spectrometry with polyurethane foam preconcentration under hypobaric hypoxia condition[J].Rock and Mineral Analysis,2010,29(3):282-286.
[13] 王培艳,马成冰.低氧低分压环境下泡塑吸附原子吸收光谱法测定矿中的金[J].光谱实验室,2012,29(2) :938-940.
 Wang Peiyan,Ma Chengbing.Determination of gold in ore by atomic absorption spectrometry with polyurethane foam absorption under hypobaric hypoxia condition[J].Chinese Journal of Spectoscopy Laboratory,2012,29(2):938-940.
[14] 艾晓军,聂凤莲.Z-5000石墨炉原子吸收光谱法测定痕量金升温程序研究[J].黄金,2006,27(9):42-45.
 Ai Xiaojun,Nie Fenglian.Study on the heating procedure for a tomic absorption spectrum method with Z-5000 graphite furnace to measure trace gold[J].Gold,2006,27(9):42-45.
[15] 李勇.Z-2000偏振塞曼石墨炉原子吸收分光光度计测定地球化学样品中痕量金[J].岩矿测试,2008,27(4):305-309.
 Li Yong.Determination of trace gold in geochemical exploration samples by Z-2000 polarized zeeman graphite furnace atomic absorption spectrophotometry[J].Rock and Mineral Analysis,2008,27(4):305-309.
[16] 艾晓军,杨理勤,冯亮,等.泡沫塑料吸附—石墨炉测定痕量金方法的改进[J].黄金科学技术,2011,19(5):51-52.
 Ai Xiaojun,Yang Liqin,Feng Liang,et al.Method improvement of trace gold determination with the foam plastic adsorption-graphite furnace[J].Gold Science and Technology,2011,19(5):51-52.
[17] 薛光,张汝生,姚万林,等.用微波封闭溶样氢醌滴定法快速测定矿石中金[J].黄金地质,2003,9(3):69-71.
 Xue Guang,Zhang Rusheng,Yao Wanlin,et al.The microwave sealing sample hydroquinone titration method for quick determination of gold[J].Gold Geology,2003,9(3):69-71.
[18] 薛光,梁志伟.微波封闭溶样快速测定矿石中金[J].理化检验—化学分册,2005,41(1):50-51.
 Xue Guang,Liang Zhiwei.Application of sample dissolution by microwave heating in closed vesseltothe photometrice determination of gold in ores[J].Physical Testing and Analysis Part B:Chemical Analysis,2005,41(1):50-51.
[19] 中华人民共和国国土资源部.地质矿产实验室测试质量管理规范:DZ/T0130-2006[S].北京:中国标准出版社,2006.
 Ministry of Land and Resources of the People’s Republic of China.The Specification of testing quality management for geological laboratories:DZ/T0130-2006[S].Beijing:China Standard Publishing House,200

[1] 牟长贤,杨明荣,石爱萍. 高海拔地区原子吸收法测定地质样品中金的最佳条件探讨[J]. 黄金科学技术, 2017, 25(2): 110-115.
[2] 金凌霄,高文美. 高海拔地区选矿厂厂址选择的初步认识[J]. J4, 2011, 19(4): 80-82.
[3] 艾晓军,聂凤莲,陈雪,陈占生. Z-5000 石墨炉原子吸收光谱法测定痕量金检出限的探讨[J]. J4, 2011, 19(4): 65-67.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!