Dataset: Ultrahigh resolution Mass Spectrometry data from a depth profile collected at 200 m depth intervals at the Bermuda Atlantic Time Series Station (BATS) in August 2019 and at the Hawaii Ocean Time Series station (HOTS) Aloha in July 2021

Final no updates expectedDOI: 10.26008/1912/bco-dmo.905077.1Version 1 (2023-09-18)Dataset Type:Other Field Results

Principal Investigator, Contact: Michael Gonsior (University of Maryland Center for Environmental Science)

Co-Principal Investigator: Feng Chen (University of Maryland Center for Environmental Science)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)


Project: The fate of lysis products of picocyanobacteria contributes to marine humic-like chromophoric dissolved organic matter (Picocyanobacteria CDOM)


Abstract

This data set contains ultrahigh resolution mass spectrometric data collected at BATS and HOTS at 200 m depth intervals in August 2019, and July 2021, respectively.

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Water samples were collected using the ship's CTD profiler and 12 L Nisking bottles. 10 L water samples from each depth were then transferred into 5 gallon polycarbonate water bottles and extractrated. 10 L seawater samples were collected at 200 m depth intervals and then solid-phase extracted suing Agilent Bond Elut PPL cartridges (1 g, 6 ml). The organic matter was then eluted with 10 mL methanol. The methanolic extract was diluted 1:20 and directly infused into a 12 Tesla Bruker Solarix Fourier transform ion cyclotron resonance mass spectrometer. 500 scans were averaged and mass lists were calibrated at a mass accuracy of greater than 0.2 ppm. 


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Methods

Timko, S. A., Maydanov, A., Pittelli, S. L., Conte, M. H., Cooper, W. J., Koch, B. P., Schmitt-Kopplin, P., & Gonsior, M. (2015). Depth-dependent photodegradation of marine dissolved organic matter. Frontiers in Marine Science, 2. https://doi.org/10.3389/fmars.2015.00066