IT is well known that the application of long-chain fatty acid samples to gas chromatography needs their previous esterification to methyl esters. Speaking generally, there are two ways to obtain ...

Department of Pharmacy, Universidade Federal dos Vales do Jequitinhonha e Mucuri-UFVJM, Campus JK, Rodovia MGT 367 - Km 583, n° 5.000, Alto da Jacuba, CEP 39100-000 Diamantina, MG, Brazil ...

Methyl ethyl ketone was purchased from PENTA (Czech Republic, Chrudim) and used as received without further purification. Benzoic acid (99%) was purchased from Alfa Aesar (Germany, Karlsruhe) and was ...

Andrew Brookes/ Getty Images The acid-test ratio (ATR), also commonly known as the quick ratio, measures the liquidity of a company by calculating how well current assets can cover current ...