液液萃取-高效液相色谱-电感耦合等离子体质谱同时测定海水中的多种有机锡

doi:10.3964/j.issn.1000-0593(2009)10-2855-05

Abstract
References
Related Citation (15)

Download: PDF (1324 KB)
Export: BibTeX | EndNote (RIS)

Abstract The hyphenated technique of high performance liquid chromatography coupled with inductively coupled plasma mass spectrometry (HPLC-ICP-MS) was applied to the simultaneous determination of five organotin compounds (trimethyltin, dibutyltin, tributyltin, diphenyltin and triphenyltin) in seawater samples. Agilent TC-C18 column was used for the separation, the mobile phase of HPLC was CH₃CN∶H₂O∶CH₃COOH=65∶23∶12 (φ)，0.05% TEA, and pH value was adjusted to 3.0 by diluent ammonia. The flow rate was 0.6 mL·min^-1. Five mixed organotin compounds in a mix standard solution from 100 to 0.5 μg·L^-1 were applied for the method assessment. The experimental results indicate that the correlation coefficient of calibration curves (R²) for each organotin compound was over 0.998 and the detection limits of the five organotin compounds were lower than 3 ng·L^-1. Different mixed organic solvents including dichloromethane or toluene were used for extraction of organotin and the extraction condition of organotin from seawater was optimized. The 100 mL seawater acidized by hydrochloric acid was extracted by 10 mL carbon dichloride (CH₂Cl₂) with 2% tropolone for 10 min twice. Extracted organic solvents were mixed and blown to one drop by nitrogen with the rate of 1.7 mL·min^-1, then 1 mL acetonitrile was added to the drop for redissolving the organotin compounds. Finally, the mixed redissolution was filtered by 0.22 μm organic filter membrane before analysis. It was found that the only organotin compound in seawater was triphenyltin (TPHT) and the content was 53.2 ng·L^-1. The recoveries test from the standard addition for diphenyltin (DPHT), dibutyltin (DBT), tributyltin (TBT) and triphenyltin (TPHT) were over 80%. However, the recovery for trimethyltin (TMT) was relatively low and the value was 50%. The reason might be attributed to the decomposition or adsorption of those compounds during the extraction procedure. Further study on this subject is in progress.

Key words：High performance liquid chromatography-inductively coupled plasma mass spectrometry;Organotin compounds;Speciation analysis;Seawater

Received: 2008-06-18 Accepted: 2008-09-22

ZTFLH:

O657.6

Corresponding Authors: WANG Xiao-ru E-mail: mt2elp@fio.org.cn

Cite this article:

YU Zhen-hua,JING Miao,WANG Xiao-ru, et al. Simultaneous Determination of Multi-Organotin Compounds in Seawater by Liquid-Liquid Extraction-High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2855-2859.

URL:

https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2009)10-2855-05 OR https://www.gpxygpfx.com/EN/Y2009/V29/I10/2855

[1] JIANG Gui-bin(江桂斌). Journal of Hygiene Research(卫生研究)，2001，30(1)：1.
[2] Champ M A, Bleil D F. Science Applications International Corporation US Department of Commerce, National Oceanic and Atmospheric Administration, Rockville, MD, 1988.
[3] European Council of Vinyl Manufacturers (ECVM), Brussels, Voluntary Commitment of the PVC Industry (March 2000), Joint Declaration of the ECVM, ESPA, ECPI and EuPC. Available Online at: http://www.evcint.com/she/Downloads/Voluntary Commitment Doc. pdf, (2005).
[4] Omae I. Applications of Organometallic Compounds. Chichester: John Wiley & Sons, 1999.
[5] Gibbs P E, Bryan G W. In Organotin-Environmental Fate and Effects, Champ M A, Seligman P F.(Eds.). London: Chapman & Hall, 1996. 259.
[6] WANG Yong-fang(王永芳). Chinese Journal of Food Hygiene(中国食品卫生杂志), 2003，15(3)：244.
[7] White S, Catterick T, Fairman B, et al. J. Chromatogr. A, 1998, 794: 211.
[8] Feng Han, James L Fasching, Phyllis R Brown. Journal of Chromatography B: Biomedical Sciences and Applications, 1995, 669(1): 103.
[9] Vinas P, Lopez-Garcia I, Merino-Merono B, et al. Journal of Environmental Monitoring, 2004, 6(4): 262.
[10] Minganti V, Capelli R, Depellegrini R. Fresenius Journal of Analytical Chemistry, 1995, 351(4-5): 471.
[11] Munoz J, Gallego M, Valcarcel M. Analytica Chimica Acta, 2005, 548(1-2): 66.
[12] Munoz J, Gallego M, Valcarcel M. Analytical Chemistry, 2005, 77(16): 5389.
[13] XU Fu-zheng，JIANG Gui-bin，HAN Heng-bin(徐福正，江桂斌，韩恒斌). Chinese J. Anal. Chem.(分析化学)，1995, 23(11)：1308.
[14] Raimund Wahlen, Tim Catterick. Journal of Chromatography B, 2003, 783: 221.
[15] YU Zhen-hua, JING Miao, WANG Xiao-ru, et al(于振花, 荆淼, 王小如, 等). Chinese J. Anal. Chem.(分析化学)，2008, 36(8): 1035.
[16] JING Miao，YU Zhen-hua，WANG Xiao-ru, et al(荆淼，于振花，王小如，等). Chinese J. Anal. Chem.(分析化学), 2008，36(2): 235.
[17] Shinji Tsunoia, Takashi Matobaa, Hirotaka Shiojia, et al. Journal of Chromatography A, 2002, 962: 197.