Determination of diamond

Analytical procedures are outlined for the determination of the diamond content of grinding wheels, drill crowns, saws, drills, hones, polishing powders and pastes, and other tools and materials employing industrial diamonds. Since the materials used as a matrix for industrial diamonds or a carrier for diamond abrasive powders may include a wide variety of metals, ceramics, plastics, cemented carbides, and organic pastes, the isolation and determination of diamond is often a rather complicated analytical task.     

Fettbestimmungen in Lebens- und Futtermitteln

Ohne Zusammenfassung     

Rapid cloning and expression of a fungal polyketide synthase gene involved in squalestatin biosynthesis

PCR primers designed to selectively amplify the unique C-methyltransferase domain of fungal polyketide synthases were used to selectively clone a polyketide synthase gene involved in the biosynthesis of the squalene synthase inhibitor squalestatin S1 , heterologous expression of which led to the biosynthesis of the squalestatin side-chain.