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  App. Note 389: Analysis of Biodiesels using LC/MS with Limited Contamination to the LC/MS Interfaces
 Purpose: To develop an effective and robust LC/MS method for the analysis of biodiesels, which could be complementary to the existing methods, such as ASTM 6751 and EN 14331.
 Preliminary studies of biodiesel samples by a high speed LC/MS system demonstrated that the LC/MS method not only reduced the analysis to 20 minutes but also revealed information about higher MW compounds in biodiesel, while still detecting many low MW chemicals, including FAMEs, at high sensitivity. ESI interface was the primary ionization technology. The cone wash kept the interface clean from contamination and clogging by residues of the complex biodiesel samples.

Future studies will be focused on two fronts: 1) fine-tuning the separation conditions to further separate the components from the early eluting, low MW compounds; and 2) identification and quantification of the components found in the TICs.

To read/download the complete application note, please use the link on this page.

   Products used for this Application
  Product #   Product Name   Image  
 IQLAAAGAAWFAFIMALO  MSQ Plus LC/MS      Select
 IQLAAAGABHFAAAMAAG  Accela High Speed LC      Select