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< Reference Standards < EPA 500 Series | Drinking Water | Glyphosates

Biodiesel Calibration Standards



Determining Free and Total Glycerin in B-100 Biodiesel Methyl Esters by GC
In the manufacture of biodiesel fuel, triglycerides are split into their monoalkyl ester components via transesterification. The fatty acid monoalkyl esters can be used as fuel in diesel engines. Amounts of free glycerin and total glycerin indicate the quality of the conversion of the oil or fat to monoalkyl esters. D6584-00 and DIN EN14105 are test methods for quantitative determination of free glycerin, total glycerin, and mono-, di-, and triglycerides in biodiesel fuel methyl esters by GC, after silylation of the sample with N-methyl-N-(trimethylsilyl) trifluoroacetamide (MSTFA).
  Description CAS # Conc. in Solvent/Volume qty. Cat.# Price     Wish
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  (s)-(-)-1,2,4-butanetriol 42890-76-6 1,000µg/mL in pyridine, 1mL/ampul ea.33024
  (s)-(-)-1,2,4-butanetriol 42890-76-6 1,000µg/mL in pyridine, 5mL/ampul ea.33032
  diolein (1,3-di[cis-octadecenoyl]glycerol) 2465-32-9 5,000µg/mL in pyridine, 1mL/ampul ea.33022
  glycerin 56-81-5 500µg/mL in pyridine, 1mL/ampul ea.33020
  monolein (1-mono[cis-9-octadecenoyl]-rac-glycerol) 111-03-5 5,000µg/mL in pyridine, 1mL/ampul ea.33021
  monopalmitin 524-44-9 5,000µg/mL in pyridine, 1mL/ampul ea.33026
  tricaprin (1,2,3-tricaprinoylglycerol) 621-71-6 8,000µg/mL in pyridine, 1mL/ampul ea.33025
  tricaprin (1,2,3-tricaprinoylglycerol) 621-71-6 8,000µg/mL in pyridine, 5mL/ampul ea.33033
  triolein (1,2,3-Tri[cis-octadecenoyl]glycerol) 122-32-7 5,000µg/mL in pyridine, 1mL/ampul ea.33023
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