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Title: Samples Undergo Nitrogen Evaporation

Description: On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. The samples were run through a liquid chromatograph column in order to separate the compounds of the petroleum. Following the preliminary separation, the dissolved samples are placed in a nitrogen evaporator. The nitrogen evaporator carefully evaporates only the solvent, leaving the separated samples behind. The nitrogen environment used by the evaporator ensures that the volatile compounds of the tar ball sample do not evaporate themselves.

Location: Menlo Park, CA, USA

Date Taken: May 14 2010

Photographer: Leslie C. Gordon , U.S. Geological Survey

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

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File Details:
Type: JPEG image - 2.15 MB
Dimensions: 3264 x 2448
Resolution: 180 dpi

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Tags: DeepwaterHorizon Louisiana analysis chemical mousse oil sample sill