Polycyclic aromatic hydrocarbons, also known as polycyclic aromatic hydrocarbons, are yellow flake or needle-like crystals precipitated from light petroleum, with pale green fluorescence.
Jul 28, 2022
Polycyclic aromatic hydrocarbons, also known as polycyclic aromatic hydrocarbons, are yellow flake or needle-like crystals precipitated from light petroleum, with pale green fluorescence.
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