Simple determination of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) using solid-phase microextraction and gas chromatography-mass spectrometry |
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| Authors: | Email author" target="_blank">Takushi?NikiEmail author Taiki?Fujinaga Mariyo?F?Watanabe Junji?Kinoshita |
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| Institution: | (1) Faculty of Geo-Environmental Science, Rissho University, Magechi, 360-0194 Kumagaya Saitama, Japan;(2) Kanagawa Prefectural Fisheries Research Institute Sagami Bay Experimental Station, 250-0021 Hayakawa, Odawara Kanagawa, Japan |
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| Abstract: | Solid-phase microextraction (SPME) is a simple, sensitive and less destructive method for the determination of dimethylsulfide
(DMS) in seawater. Combined with detection by gas chromatography-mass spectrometry (GC-MS), the method had sufficient sensitivity
(minimum detectable concentration of DMS was 0.05 nM), and practical levels of reproducibility (relative standard deviation
≤7%) and linearity (r
2 > 0.995) over a wide concentration range (0.5 to 910 nM). The protocol developed was applied to a Sagami Bay water sample
to determine concentrations of DMS and DMSP, and in situ DMSP-lyase activity. |
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| Keywords: | DMS DMSP DMSP-lyase activity solid-phase microextraction (SPME) |
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