Laboratory Methods for Detecting Hydrocarbons in Marine Sediments at Oil Seeps

A laboratory study determined effective methods for detecting C10 to C40 hydrocarbons in marine sediments at naturally occurring oil seeps. The results indicate a commercially available method using hexane extraction and gas chromatography is effective for concentrations between 50 to 5,000 ppm. The dataset is provided by the Australian Ocean Data Network and was last updated on 2026-06-16.

Use Cases

• Comparing extraction and detection methods for hydrocarbons based on the described laboratory study.
• Calibrating gas chromatography screening tools for oil charge concentrations between 50 and 5,000 ppm.
• Developing protocols for detecting biodegraded oil charges using Unresolved Complex Mixture (UCM) quantification.
• Screening sediment samples for petroleum-related hydrocarbons at concentrations below 50 ppm using GC-MS.

Strengths

• Describes a validated method effective for a specific concentration range of 50 to 5,000 ppm.
• Compares detection techniques for both unbiodegraded and biodegraded oil charges.
• Identifies GC-MS as an effective tool for low-concentration screening below 50 ppm.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Laboratory study

Freshness

Last updated 2026-06-16 22:30:00.443585; freshness should be verified.

Geography

Marine sediments at naturally occurring oil seeps