期刊文献+

水中镉含量的激光诱导击穿光谱高灵敏快速检测 被引量:8

High-sensitive and rapid determination of cadmium concentration in water with laser-induced breakdown spectroscopy
下载PDF
导出
摘要 为了对水中的痕量镉进行高灵敏快速检测,实验采用一种未受污染的薄木片作为基底来吸收水样品,将其晾干后再用激光诱导击穿光谱(LIBS)技术对其进行分析,克服了用LIBS技术直接分析水样品时灵敏度低和稳定性差等问题。实验中选择214.44nm的镉离子线作为分析线以提高光谱检测的灵敏度,建立了用于定量分析的校正曲线,镉的检出限达到55μg/L,重复测量的信号相对标准偏差小于5%,单次测量的时间短于5min。 To realize high-sensitive and rapid analysis of trace cadmium in water,an unpolluted thin wood slice was chosen as substrate to absorb water sample and then analyzed with laser-induced breakdown spectroscopy(LIBS) after being dried,which overcomes the drawbacks of low sensitivity and reproducibility existing in the process of direct analysis of water sample with LIBS.The 214.44 nm ionic line of cadmium was chosen as analytical line.A calibration curve was established for the purpose of quantitative analysis.The limit of detection of cadmium in water was determined to be 55 μg/L and the relative standard deviation of signal in different measurements was less than 5%.The time needed for each measurement was less than 5 min.
出处 《强激光与粒子束》 EI CAS CSCD 北大核心 2011年第9期2528-2532,共5页 High Power Laser and Particle Beams
基金 国家自然科学基金项目(10874047)
关键词 激光诱导击穿光谱 快速分析 环境污染监测 cadmium laser-induced breakdown spectroscopy rapid analysis environmental pollution monitoring
  • 相关文献

参考文献18

  • 1Guell R, Aragay G, Fontas C, et al. Sensitive and stable monitoring of lead and cadmium in seawater using screen-printed electrode and elec- trochemical stripping analysis[J]. Ana@tica Chimica Acta, 2008, 627 (2) : 219-224.
  • 2Cooper J, Bolbot J A, Saini S, et al. Electrochemical method for the rapid on site screening of cadmium and lead in soil and water samples [J]. Water Air and Soil Pollution, 2007, 179(1/4) :183 195.
  • 3Manzoori J L, Abdolmohammad Zadeh H, Amjadi M. Ultratrace determination of cadmium by cold vapor atomic absorption spectrometry af- ter preconcentration with a simplified cloud point extraction metbodology[J] Talanta, 2007, 71(2) :582 587.
  • 4康维钧,梁淑轩,贾丽辉,许丽琴,赵岩,孙汉文.双微柱在线富集-火焰原子吸收光谱法测定环境水样中痕量镉[J].光谱学与光谱分析,2005,25(5):792-795. 被引量:11
  • 5Frentiu T, Darvasi E, Senila M, et al. Preliminary investigation of a medium power argon radiofrequency capacitively coupled plasma as atomization cell in atomic fluorescence spectrometry of cadmiu[J]. Talanta, 2008, 76(5) :1170-1176.
  • 6Chen Mingli, Tian Yong, Wang Jianhua. Integrating preconcentration, tetrahydroborate immobilization, elution and chemical vapor genera tion onto a cellulose surface for the determination of cadmium with atomic fluorescence speetrometry[J]. Journal of Analytical Atomic SDectrometry, 2008, 23(6) :876 880.
  • 7Otero-Romani J, Moreda-Pineiro A, Bermejo Barrera P, et al. Inductively coupled plasma-optical emission spectrometry/mass spectrometry for the determination of Cu, Ni, Pb and Zn in seawater after ionic imprinted polymer based solid phase extraction[J]. Talanta, 2009, 79 (3) 723 729.
  • 8Trujillo I S, Alonso E V, Cordero M T S, et al. On line solid phase chelation for the determination of six metals in sea water by inductively coupled plasma mass spectrometry[J] Journal of Analytical Atomic Spectrometry, 2010, 25(7):1063-1071.
  • 9陈建国,陈恒武,金献忠,陈海婷.浊点萃取-流动注射电感耦合等离子体原子发射光谱法同时测定水中镉钴铜镍锌[J].分析科学学报,2009,25(3):262-266. 被引量:12
  • 10Sekabira K, ()riga H O, Basamba T A, et aI. Application of algae in biomonitoring and phytoextraction of heavy metals contamination in urban stream water [J]. International Journal of Environmental Science and Technology, 2011, 8(1) .. 115-128.

二级参考文献75

共引文献79

同被引文献90

引证文献8

二级引证文献40

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部