Evaporative light scattering detection based reversed-phase ultra-high-performance liquid chromatography method to quantify intermediates and end products of biodiesel production was written by Nakai, Diogo K.;Ribeiro, Jose A. A.;Martins, Pedro A.;Soares, Itania P.;Salum, Thais F. C.;Costa, Patricia P. K. G.. And the article was included in Journal of Chromatography A in 2022.SDS of cas: 31566-31-1 The following contents are mentioned in the article:
A fast method based on reversed-phase ultra-high-performance liquid chromatog. using evaporative light scattering detection (RP-UHPLC-ELSD) was developed for monitoring the intermediates and end products of biodiesel production Gradient elution of water, acetonitrile, and a mixture of acetonitrile:2-propanol:n-hexane was used. With a minimal and easy sample preparation, fatty acid Me esters (FAME), fatty acid Et esters (FAEE), free fatty acids (FFA), monoacylglycerols (MAG), diacylglycerols (DAG), and triacylglycerols (TAG) were successfully separated The developed method was used to monitor an ethylic enzymic transesterification of soybean oil and to characterize the ester content of Me and Et biodiesel. The ester content obtained was compared with the reference method by gas chromatog. and flame ionization detector (GC-FID), with similar results for both Me and Et biodiesel. The presented method is a simple and fast alternative, a 17 min run, to monitor the transesterification process, simultaneously quantifying all the analytes produced in the reaction: biodiesel and its intermediates. Limits of detection (LOD, between 29 and 307 ng) and quantification (LOQ, between 48 and 614 ng), linearity (R2>0.99), precision (between 0.30 and 6.58%), and accuracy (between 81.6 and 119.9%) were determined for the twenty-one compounds This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1SDS of cas: 31566-31-1).
Glyceryl monostearate (cas: 31566-31-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 31566-31-1
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics