https://www.selleckchem.com/pr....oducts/lithium-chlor
Hopanoid hydrocarbon content in ambient particulate matter (PM) of less than or equal to 10 μm aerodynamic diameter (PM1 was sampled at seven sites representative of different functional districts, and measured by gas chromatography-mass spectrometry. 17α(H),21β(H)-hopane (C30αβ) and 17α(H),21β(H)-30-norhopane (C29αβ) were dominant in all samples. Hopanes in motor vehicle emissions from various fuel-type engines (gasoline, diesel and natural gas) and coal ash were qualitatively measured, and the amount of C30αβ was about two
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