Found in everything from water and food to medications, nitrosamines are organic compounds with a unique chemical structure. Click to read more...
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Petroleum is nearly always found in marine sedimentary rocks. In the ocean, microscopic phytoplankton (tiny floating plants) and bacteria (simple, single-celled organisms) are the principal sources of organic matter that is trapped and buried in sediment. Most of the organic matter is buried in ...
Here are some examples of what we’ve learned about the origin of wine. Wine in 6,000 BC Organic compounds found in ancient Georgian pottery link winemaking to an area in the Southern Caucasus. The pottery vessels, called Kvevri (or Qvevri), can still be found in modern winemaking in Geor...
What is a VOC anyway? Understanding VOCs, where they are found and how to avoid them.The article offers information on volatile organic compounds (VOCs). VOCs are carbon-based chemical compounds that evaporate at room temperature. VOCs are usually included in building products, such as paint, ...
What are volatile organic compounds? VOCs are a large group of chemicals that can easily be emitted as gases into the air. To qualify as a VOC, a substance has to be volatile – in other words, the molecules evaporate or sublimate under standard temperature, humidity, light (UV) and...
Where hydrocarbons are found Over several millennia, the elemental forces of weight and pressure compact the organic matter found in dead animals and plants to create hydrocarbons. These are most commonly found buried deep beneath the Earth’s surface in porous rock formations. Some of the principal...
Siderophores, or “organic compounds that bind (chelate) and transport Fe to microorganisms”23, are also produced by microbes (i.e., fungi, bacteria, lichen) and have been associated with enhancing molecular-scale interactions between surfaces of Fe-rich minerals (i.e., goethite, lepidocrocite)...
Sartans are chemical compounds with antagonistic action towards the AT1 receptors of angiotensin II, a multifunctional peptide with vasoconstrictor action and one of the main peptides responsible for regulating blood pressure. Losartan (progenitor of the group), valsartan, irbesartan, candesartan, eprosar...
athe focus of their attention was on the indirect oxidation of organic compounds, where Ce3+ was firstly electrooxidized into Ce4+ and then Ce4+ oxidized the organic compounds into the object production. 他焦点他们的注意在有机化合物的间接氧化作用, Ce3+首先electrooxidized入Ce4+ Ce4+然后氧化了有...