Abstract
A new marine sediment reference material (NMIJ CRM 7301-a) for butyltins analysis was prepared and certified by the National Metrological Institute of Japan, National Institute of Advanced Industrial Science and Technology (NMIJ/AIST). The original material of the sediment was collected at a bay near industrial activities in Japan. The sediment material was air-dried, sieved, homogenized, and packaged into 1,000 glass bottles (60 g each). Certification of NMIJ CRM 7301-a was carried out at NMIJ using two different types of species-specific isotope dilution mass spectrometry: isotope dilution–ethylation–gas chromatography/inductively coupled plasma mass spectrometry (GC/ICPMS) and isotope dilution–ethylation–gas chromatography/mass spectrometry (GC/MS). A mixture of 118Sn-enriched monobutyltin, dibutyltin, and tributyltin was synthesized in our laboratory and was used as a spike for both techniques. Certified values are given for tributyltin (0.044±0.004 mg kg−1 as Sn), dibutyltin (0.056±0.006 mg kg−1 as Sn, and monobutyltin (0.058±0.013 mg kg−1 as Sn), being at lower levels than currently available sediment CRMs for the analysis of organotins.
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Acknowledgements
The authors greatly appreciate the following participants in the collaborative analysis: K. Tanada of Kitakyushu City Institute of Environmental Sciences, H. Harino of Osaka City Institute of Public Health and Environmental Sciences, K. Mizuishi of Tokyo Metropolitan Research Laboratory of Public Health, and H. Tao of Institute for Environmental Management Technology, AIST. Sample collection and preparation were carried out at Environmental Technology Service Co., Ltd. This research was supported by the millennium research project of the Japanese government.
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Inagaki, K., Takatsu, A., Watanabe, T. et al. Certification of mono-, di-, and tributyltin compounds in marine sediment certified reference material by species-specific isotope dilution mass spectrometric analysis using synthesized 118Sn-labeled butyltins. Anal Bioanal Chem 378, 1265–1270 (2004). https://doi.org/10.1007/s00216-003-2371-6
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DOI: https://doi.org/10.1007/s00216-003-2371-6