Summary of Study ST002788

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001738. The data can be accessed directly via it's Project DOI: 10.21228/M82719 This work is supported by NIH grant, U2C- DK119886.

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This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study IDST002788
Study TitleMetabolomic analysis of particulate matter in the NPSG during a 2018 cruise on the R/V Falkor
Study SummaryTargeted and untargeted analysis of metabolomics samples from the North Pacific Subtropical Gyre taken during the 2018 March/April SCOPE cruise on the R/V Falkor (FK180310) across a mesoscale eddy dipole. Particulate matter was collected on 0.2um filters and extracted using a modified Bligh & Dyer before analysis on a QE Orbitrap. Results show significant changes in the absolute quantity and relative composition of particles in the gyre between anticyclonic and cyclonic eddies.
Institute
University of Washington
DepartmentSchool of Oceanography
LaboratoryIngalls Lab
Last NameKumler
First NameWilliam
Address1501 NE Boat St, Seattle, WA 98105
Emailwkumler@uw.edu
Phone2062216732
Submit Date2023-07-17
Raw Data AvailableYes
Raw Data File Type(s)mzML
Analysis Type DetailLC-MS
Release Date2023-08-10
Release Version1
William Kumler William Kumler
https://dx.doi.org/10.21228/M82719
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Combined analysis:

Analysis ID AN004536 AN004537
Analysis type MS MS
Chromatography type HILIC HILIC
Chromatography system Waters Acquity I-Class Waters Acquity I-Class
Column SeQuant ZIC-HILIC (150 x 2.1mm, 5um) SeQuant ZIC-HILIC (150 x 2.1mm, 5um)
MS Type ESI ESI
MS instrument type Orbitrap Orbitrap
MS instrument name Thermo Q Exactive HF hybrid Orbitrap Thermo Q Exactive HF hybrid Orbitrap
Ion Mode POSITIVE NEGATIVE
Units normalized peak area per liter seawater filtered normalized peak area per liter of seawater filtered

Chromatography:

Chromatography ID:CH003408
Chromatography Summary:A SeQuant ZIC-pHILIC column (5 um particle size, 2.1 mm x 150 mm, from Millipore) was used with 10 mM ammonium carbonate in 85:15 acetonitrile to water (Solvent A) and 10 mM ammonium carbonate in 85:15 water to acetonitrile (Solvent B) at a flow rate of 0.15 mL/min. This column was compared with a Waters UPLC BEH amide and a Millipore cHILIC column; the pHILIC showed superior reproducibility and peak shapes. The column was held at 100% A for 2 minutes, ramped to 64% B over 18 minutes, ramped to 100% B over 1 minute, held at 100% B for 5 minutes, and equilibrated at 100% A for 25 minutes (50 minutes total). The column was maintained at 30 C. The injection volume was 2 ┬ÁL for samples and standard mixes. When starting a batch, the column was equilibrated at the starting conditions for at least 30 minutes. To improve the performance of the HILIC column, we maintained the same injection volume, kept the instrument running water blanks between samples as necessary, and injected standards in a representative matrix in addition to standards in water. After each batch, the column was flushed with 10 mM ammonium carbonate in 85:15 water to acetonitrile for 20 to 30 minutes.
Instrument Name:Waters Acquity I-Class
Column Name:SeQuant ZIC-HILIC (150 x 2.1mm, 5um)
Column Temperature:30
Flow Gradient:100% A for 2 minutes, ramped to 64% B over 18 minutes, ramped to 100% B over 1 minute, held at 100% B for 5 minutes, and equilibrated at 100% A for 25 minutes (50 minutes total)
Flow Rate:0.15 mL/min
Solvent A:85% acetonitrile/15% water
Solvent B:15% acetonitrile/85% water
Chromatography Type:HILIC
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