Interfering elements on determination of hexavalent chromium in paper materials with UV-vis spectrophotometry was written by Lee, Tai Ju;Kim, Hyoung Jin. And the article was included in Nordic Pulp & Paper Research Journal in 2022.Product Details of 5137-55-3 The following contents are mentioned in the article:
Regulation of hexavalent chromium is based on Waste Framework Directive 1994/62/EC, European Commission and publication of the World Health Organization. Herein, detection of hexavalent chromium was performed by alk. digestion and instrumental anal. which was demonstrated in USEPA methods. However, UV-vis detection method could be affected by some metal ions reacted with diphenylcarbizide. Actually, various interfering elements, such as Ni, Fe, Al, and Cu, were detected and selected by ED-XRF in paper materials. In order to improve accuracy of anal. results of hexavalent chromium in paper materials based on USEPA methods, the interfering elements was removed by liquid-liquid extraction with carbonate media using tricaprylmethylammonium chloride and chloroform after alk. digestion. Consequently, the temperature for alk. digestion was between 85 and 95°C. Hydrochloric acid was proper complex tricaprylmethylammonium-Cr(VI) in the procedure of liquid extraction After that hexavalent chromium was completely extracted using of 1 M sodium hydroxide solution The technique for analyzing the hexavalent chromium used in liquid-liquid extraction significantly reduced the errors caused by the interfering elements, Fe and Cu. Thus, application of the extraction method was efficient in removing the interfering elements, which increased the recovery ratio of the hexavalent chromium from paper materials by 90%. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Product Details of 5137-55-3).
N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Product Details of 5137-55-3
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics