Unresolved complex mixture

Unresolved complex mixture (also UCM or hump) is a feature frequently observed in gas chromatographic (GC) data of crude oils and extracts from organisms exposed to oil. ^[1]

14 relations: Athabasca oil sands, Comprehensive two-dimensional gas chromatography, Ecotoxicology, Endocrine disruptor, Environmental chemistry, Flame ionization detector, Gas chromatography, Mass spectrometry, Naphthenic acid, Pollution, Polycyclic aromatic hydrocarbon, Time-of-flight mass spectrometry, Toxicology, United States Environmental Protection Agency.

Athabasca oil sands

The Athabasca oil sands (or tar sands) are large deposits of bitumen or extremely heavy crude oil, located in northeastern Alberta, Canada – roughly centred on the boomtown of Fort McMurray.

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Comprehensive two-dimensional gas chromatography

Comprehensive Two-dimensional gas chromatography, or GCxGC is a multidimensional gas chromatography technique that was originally described in 1991 by Professor Phillips and his student Liu.

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Ecotoxicology

Ecotoxicology is the study of the effects of toxic chemicals on biological organisms, especially at the population, community, ecosystem, and biosphere levels.

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Endocrine disruptor

Endocrine disruptors are chemicals that can interfere with endocrine (or hormone) systems at certain doses.

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Environmental chemistry

Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places.

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Flame ionization detector

A flame ionization detector (FID) is a scientific instrument that measures analyte in a gas stream.

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Gas chromatography

Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition.

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Mass spectrometry

Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio.

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Naphthenic acid

Naphthenic acids (NAs) are a mixture of several cyclopentyl and cyclohexyl carboxylic acids with molecular weight of 120 to well over 700 atomic mass units.

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Pollution

Pollution is the introduction of contaminants into the natural environment that cause adverse change.

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Polycyclic aromatic hydrocarbon

Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons or polynuclear aromatic hydrocarbons) are hydrocarbons—organic compounds containing only carbon and hydrogen—that are composed of multiple aromatic rings (organic rings in which the electrons are delocalized).

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Time-of-flight mass spectrometry

Time-of-flight mass spectrometry (TOFMS) is a method of mass spectrometry in which an ion's mass-to-charge ratio is determined via a time of flight measurement.

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Toxicology

Toxicology is a discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating exposures to toxins and toxicants.

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United States Environmental Protection Agency

The Environmental Protection Agency is an independent agency of the United States federal government for environmental protection.

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Unresolved Complex Mixture.

References

[1] https://en.wikipedia.org/wiki/Unresolved_complex_mixture

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