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Bial's reagent consists of 0.4 g orcinol, 200 ml of concentrated hydrochloric acid and 0.5 ml of a 10% solution of ferric chloride. [2] Bial's test is used to distinguish pentoses from hexoses; this distinction is based on the color that develops in the presence of orcinol and iron (III) chloride. Furfural from pentoses gives a blue or green color.
Manfred Bial (10 December 1869 – 26 May 1908) was a German physician who invented a test for pentoses using orcinol, now known as Bial's test. [1] Bial was born on 10 December 1869 in Breslau, the son of Max Bial. He was an assistant at the Kaiserin-Augusta-Hospital in Berlin. Bial died on 26 May 1908 in Monaco. [citation needed]
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4 Tips for Dealing With Uncomfortable Questions There are many dreading their family's annual ugly sweater party because they'd rather not talk about their body.
A woman who claimed mixed martial arts fighter Conor McGregor “brutally raped and battered” her in a Dublin hotel penthouse was awarded nearly 250,000 Euros ($257,000) on Friday by a civil ...
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It was standardized as Recommendation ITU-T P.862 [1] in 2001. PESQ is used for objective voice quality testing by phone manufacturers, network equipment vendors and telecom operators. Its usage requires a license. The first edition of PESQ's successor POLQA (Recommendation ITU-T P.863 [2]) entered into force in 2011.