Quaternary ammonium cation Essays

Identification of Unknown Solutions and Ammonium Salts preAice Chemistry Lab Report Descriptions of unknown solutions: Unknown Descriptions A Clear, colorless, odorless liquid. B Clear, colorless, odorless liquid. C Clear, red-brown, odorless liquid D Clear, yellow-orange, odorless liquid. Observations of unknown solutions: Unknown NaOH HNO3 & AgNO3 Diluted HNO3 & BaCl2 HCl A No reaction (+)Yellow ppt. formed Did not test (+)Effervescence (bubbles) B No reaction

In this experiment, we had purified LDH isozyme from the clarified homogenate via the ammonium sulfate precipitation, affinity chromatography and size exclusion chromatography. Based on the result shown on the LDH table and on the SDS page, the most effective LDH purification step is the affinity chromatography. Even though the affinity purification step recovers the least amount of LDH (only 3% of LDH from the previous 65% cut), it shows the most purified enzyme without any contaminating proteins

3. Results and discussion 3.1. Exploratory experiments with MM1. In the present work, 17 ILs with different cations and anions were synthesized to evaluate the effect of different molecular structures on the extraction of N-compounds. To our knowledge, the synthesis of some ILs from Table 4, for example, tetra alkyl ammonium with different carboxylic anions has not been published yet. As it was stated in the objectives, the selection of the Feed/IL ratio aimed at the least amount of IL required