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Squalene is sourced predominantly from shark liver oils and to a lesser extent from plants such as olives. It is used for the production of surfactants, dyes, sunscreen, and cosmetics. The economic value of shark liver oil is directly related to the squalene content, which in turn is highly variable and species-dependent. Presented here is a validated gas chromatography-mass spectrometry analysis...
The use of vibrational spectroscopic methods to elucidate the states present in metal complexes of dipyrido[3,2-a:2,3-c]phenazine (dppz) are reviewed. The presence of the close lying b1(ψ) and b1(phz) molecular orbitals leads to a number of close lying intraligand and MLCT excited states. Using resonance Raman spectroscopy the nature of initial photoexcitation may be established as M→b1(ψ). For Ru(II)...
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