OPTIMAr Biodiesel M capillary columns for GC, film thickness

OPTIMA® BioDiesel Capillary columns for the analysis of BioDiesel (DIN EN 14214 / ASTM D 6751) OPTIMA® BioDiesel F for analysis of FAMEs in accordance with DIN EN 14103:2011 The analysis of biodiesel requires separation of typical FAMEs between myristic acid (C14) and nervonic acid (C24:1) methyl esters. This analysis is possible on OPTIMA® BioDiesel F in only 22 min. Additionally, linolenic acid methyl ester can be determined due to the good resolution. The extended standard DIN EN 14103:2011 also covers smaller FAMEs starting from C6. Change of the internal standard from C17 to C19 also allows the analysis of animal fats. Similar phases: Select™ Biodiesel for FAME, Trace TR-BioDiesel (F) Max. temperature for isothermal operation 240 °C, max. temperature for short isotherms in a temperature program 250 °C OPTIMA® BioDiesel G for analysis of glycerol and glycerides in accordance with DIN EN 14105 The capillary column OPTIMA® BioDiesel G allows determination of free glycerol and residues of mono-, di- and triglycerides in FAMEs intended as additives for mineral oils. The procedure can be applied for FAMEs from rapeseed oil (canola oil), sunflower oil and soy bean oil. Glycerol as well as mono- and diglycerides are derivatized to more volatile substances by addition of MSTFA in the presence of pyridine. Similar phases: Select™ Biodiesel for Glycerides, Trace TR-BioDiesel (G), MET-Biodiesel Max. temperature for isothermal operation 380 °C, max. temperature for short isotherms in a temperature program 400 °C OPTIMA® BioDiesel M for analysis of methanol in accordance with DIN EN 14110 The methanol content in biodiesel as specified in DIN EN 14110 must not exceed 0.2 %. The column OPTIMA® BioDiesel M allows the GC headspace analysis of the methanol content in biodiesel in the concentration range from 0.01 to 0.5 % with 2-propanol as internal standard. Similar phases: Select™ Biodiesel for Methanol, Trace TR-BioDiesel (M) Max. temperature for isothermal operation 340 °C, max. temperature for short isotherms in a temperature program 360 °C