Search results
Results from the WOW.Com Content Network
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.
Orcinol is an organic compound with the formula CH 3 C 6 H 3 (OH) 2. It occurs in many species of lichens [ 3 ] including Roccella tinctoria and Lecanora . Orcinol has been detected in the "toxic glue" of the ant species Camponotus saundersi .
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]
Download QR code; Print/export Download as PDF; ... The Dische test, or Dische reaction, ... Bial's test; References
In an encore “20/20” airing Dec. 27 at 9 p.m. ET, the show, which originally aired in 2023, tells the story of Julie Jensen, the mother of two who was found dead in her bed in 1998.
Season 1 of "No Good Deed" is dropping on Netflix on Thursday, Dec. 12 at 3:00 a.m. EST. How to watch 'No Good Deed'
The nation said a proper farewell to former President Jimmy Carter during his funeral service in Washington D.C. on Thursday. President Joe Biden, who declared Thursday a national day of mourning ...
This results in an absorption edge. Every element has a set of unique absorption edges corresponding to different binding energies of its electrons, giving XAS element selectivity. XAS spectra are most often collected at synchrotrons because the high intensity of synchrotron X-ray sources allows the concentration of the absorbing element to ...