Marine and Environmental Geochemistry

The Marine and Environmental Geochemistry (MEG) facility is an applied mass spectrometry core specializing in trace analyses of complex mixtures within the Earth System.
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Yina Liu, Director
Mike Shields, Co-Director
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The Marine and Environmental Geochemistry (MEG) facility is an applied mass spectrometry core specializing in trace analyses of complex mixtures within the Earth System. As part of the Geochemical and Environmental Research Group (GERG, founded in 1981)—a soft money center of excellence in applied geosciences and ocean observing within the College of Arts and Sciences at Texas A&M University—MEG is driven by active research scientists. Our members lead diverse projects and contracts as PIs and Co-PIs in chemical oceanography, environmental chemistry, geochemistry, and marine metabolomics and exposomics, funded by federal, state, and private agencies.

MEG offers complete sample preparation laboratories and advanced instrumentation for the analysis of inorganic (e.g., nutrients and mercury) and organic (e.g., legacy and emerging contaminants) components in environmental matrices such as soil, water, air, and tissue. We leverage our research expertise to provide collaborative support for projects with faculty, research scientists, and students within and outside Texas A&M University.

Equipment

Gas Chromatography

Six Agilent gas chromatography platforms, including flame ionization and electron capture detectors, single-quad and triple-quad mass spectrometers. These instruments are routinely used for non-polar compounds such as n-alkanes, petroleum biomarkers, PAHs, PCBs, PBDEs, dioxins, and beyond.

Agilent 1290 Infinity-II

An Agilent 1290 Infinity-II ultrahigh-performance liquid chromatography coupled with an Agilent 6470 electrospray ionization tandem mass spectrometer (UPLC-MS/MS) for polar compounds such as PFAS, pharmaceuticals, personal care products, metabolites, tire-derived organic pollutants, and biotic/abiotic transformation products.

SEAL AA500

A SEAL AA500 system paired with a SEAL AS2 autosampler for the analysis of nitrate, nitrite, ortho-phosphate, silicates, and ammonia in natural waters.

PerkinElmer Flow Injection Mercury System 400

A PerkinElmer Flow Injection Mercury System (FIMS) 400 for the quantification of total mercury in water, soils, sediments, and tissue digestions.

Guildline Autosal 8400B

Guildline AutoSal 8400B for salinity measurements.

Automated Oxygen Titrator

Automated oxygen titrator using amperometric endpoint detection for the determination of dissolved oxygen in water.

Fume Hoods

Organic and inorganic fume hoods for the preparation of samples on-site.

QA/QC Controls

Adherence to EPA and DoD/DOE QSM quality assurance and quality control requirements.

Horiba Aqualog CDOM analyzer

Horiba Aqualog CDOM analyzer.

Picarro G2201-i Analyzer

Picarro G2201-i isotopic CO2 and CH4 Analyzer.

Classroom available for hosting lunch and learn events.

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