Electron Capture Negative Ion Mass Spectra of Selected Polybrominated Diphenyl Ethers (PBDEs) and Related Compounds

The following 61 mass spectra were measured using the JMS-GCmateII (JEOL Peabody,

MA, USA) in the electron-capture negative ionization (ECNI) mode; methane (99.99%) was used as a reagent gas. Standards were introduced by gas chromatography (GC) (6890N, Agilent Tech., Palo Alto, CA) equipped with an on-column injector and a 30 m column (J&W Scientific, Agilent Tech.,) (DB-5HT, 30 m x 0.25 mm, 0.1 µm stationary phase). Injections (1 µL), were made on a low temperature on-column injector, carry gas helium. Initial injector temperature 55 oC, increased to 150 oC at 30-oC/minute oC, then rate is reduced to 10-oC/minute until 300 oC was reached, held for 15 minutes, increased to 350 oC at 30-oC/minute and held at 350 oC for 5 minutes, as a bake-out procedure prior to subsequent analysis.

The instrument was tuned and calibrated using 1000:1 mixture of Perfluorokerosene

(PFK) and 1,2,4 Trichlorobenzene, tune target ion 331 m/z. Typical values for the ion source were: electron energy 50 eV, filament 300 uA, source temperature 300 oC. ECNI mass spectra were measured in full scan (10 to 550 m/z), at 1.0 scans/sec. All reported mass spectra were identified at > ½ peek height.

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia

Virginia Institute of Marine Science Gloucester Point, Virginia

markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

O-

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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O-

Br5

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[13C6Br5O]-

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

[M]-

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Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu

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[M - Cl]-

Mark J. La Guardia Virginia Institute of Marine Science

Gloucester Point, Virginia markl@vims.edu