DOI: 10.3724/SP.J.1096.2013.30692

Chinese Journal of Analytical Chemistry (分析化学) 2013/41:12 PP.1887-1892

Speciation of Organotin Compounds in Seawater by Headspace Solid Phase Microextraction and Gas Chromatography-Tandem Mass After Ethylation

A method for the determination of five organotin compounds (OTs), monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), monophenyltin (MPhT) and diphenyltin (DPhT), in seawater was developed using solid phase microextraction (SPME) coupled with gas chromatography and triple quadrupole tandem mass spectrometer (GC-MS/MS) after ethylation with sodium tetraethylbroate (NaBEt4). After the internal standard (Tripropyltin, TPrT) was added, the pH was adjusted to 5.0 by HAc-NaAc buffer, and NaBEt4 was added, the seawater sample was stirred with a magnetic agitator and the headspace solid phase microextraction was performed with a 75 μm polydimethylsiloxane/carboxen (PDMS/CAR) fiber for 20 min. After extraction, the SPME fiber was directly injected into the GC inlet for GC-MS/MS analysis. The method has very low detection limits for the five organotin compounds in the range of 0.10-0.20 ng/L (Sn). The recoveries are in the range of 80.2%-93.6%, and the relative standard deviations are all below 13% for the five organotin compounds at the spike level of 20 ng/L (Sn). The method is simple, fast, sensitive and solventless. No more than 25 minutes were needed for each sample in routine analysis. The proposed method was applied to 96 seawater samples collected from mariculture areas along the Bohai Bay and the detection rate was 42.7%.

Key words:Gas chromatography-tandem mass spectrometer,Solid phase microextraction,Ethylation,Organotin,Seawater

ReleaseDate:2015-04-19 11:08:12

荆 淼, 于振花, 王小如, 黎先春, 陈登云.分析化学, 2008, 36(2): 235-237

1 Fent K. Crit. Rev. Toxicol., 1996, 26(1): 1-117

李 湘, 余晶晶, 李 冰, 胡俊栋, 杨红霞, 刘 崴, 呼世斌. 分析化学, 2011, 39(9): 1400-1405

2 Abalos M, Bayona J M, Compano R, Granados M, Leal C, Prat M D. J. Chromatogr. A, 1997, 788(1-2): 1-49

于振花, 荆 淼,王小如,陈登云,黄彦良. 光谱学与光谱分析, 2009, 29(10): 2855-2859

3 Antizar-Ladislao B. Environ. Int., 2008, 34(2): 292-308

4 Cao D, Jiang G, Zhou Q, Yang R. J. Environ. Manage., 2009, 90: S16-S24

张丽笑, 苏荣国, 张传松, 石晓勇. 中国科学: 化学, 2010, 40(8): 1149-1155

5 Yang R, Cao D, Zhou Q, Wang Y, Jiang G. Environ. Int., 2008, 34(6): 804-810

6 Zhang K, Shi J, He B, Xu W, Li X, Jiang G. Chinese Sci. Bull., 2013, 58(2): 231-237

7 Dubalska K, Rutkowska M, Bajger-Nowak G, Konieczka P, Namiesnik J. Crit. Rev. Anal. Chem., 2013, 43(1): 35-54

8 Alahmadi S. M. Asian J. Chem., 2011, 23(9): 3787-3791

9 JING Miao, YU Zhen-Hua, WANG Xiao-Ru, Frank S. C. LEE, CHEN Deng-Yun. Chinese J. Anal. Chem., 2008, 36(2): 235-237

10 LI Xiang, YU Jing-Jing, LI Bing, HU Jun-Dong, YANG Hong-Xia, LIU Wei, HU Shi-Bin. Chinese J. Anal. Chem., 2011, 39(9): 1400-1405

11 Beceiro-Gonzalez E, Guimaraes A, Alpendurada M F. J. Chromatogr. A, 2009, 1216(29): 5563-5569

12 YU Zhen-Hua, JING Miao, WANG Xiao-Ru, CHEN Deng-Yun, HUANG Yan-Liang. Spectroscopy and Spectral Analysis, 2009, 29(10): 2855-2859

13 Segovia-Martinez L, Bouzas-Blanco A, Campins-Falco P, Seco-Torrecillas A. Talanta, 2010, 80(5): 1888-1893

14 Devos C, David F, Sandra P. J. Chromatogr. A, 2012, 1261: 151-157

15 Tsunoi S, Matoba T, Shioji H, Giang L T H, Harino H, Tanaka M. J. Chromatogr. A, 2002, 962(1-2): 197-206

16 Vidal J L M, Vega A B, Arrebola F J, Gonzalez-Rodriguez M J, Sanchez M C M, Frenich A G. Rapid. Commun. Mass Spectrom, 2003, 17(18): 2099-2106

17 Le Gac M, Lespes G, Potin-Gautier M. J. Chromatogr. A, 2003, 999(1-2): 123-134

18 Zachariadis G A, Rosenberg E. Talanta, 2009, 78(2): 570-576

19 Mester Z, Sturgeon R, Pawliszyn J. Spectrochim. Acta. B, 2001, 56(3): 233-260

20 ZHANG Li-Xiao, SU Rong-Guo, ZHANG Chuan-Song, SHI Xiao-Yong. Sci. China Chem., 2010, 40(8): 1149-1155