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REFERENCE STANDARDS | PETROLEUM & PETROCHEMICAL
Biodiesel
Biodiesel
Determining Free and Total Glycerin in B100 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. D6584-10 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).
MXT® Capillary Columns
Ideal for High-Temperature GC Analysis
• Metal tubing won’t become brittle at high
temperatures (430 °C).*
• Exclusive Siltek® layer provides an internal surface
with excellent inertness.
• Can be tightly coiled well under 4.5" without
breaking, even under stress.
*Maximum temperature of finished column may vary by phase.
xt
1,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33024 (ea.)
1,000 µg/mL in pyridine, 5 mL/ampul
cat.# 33032 (ea.)
(s)-(-)-1,2,4-Butanetriol (42890-76-6)
(s)-(-)-1,2,4-Butanetriol
5,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33022 (ea.)
Diolein (1,3-di[cis-octadecenoyl]glycerol) (2465-32-9)
Diolein (1,3-di[cis-octadecenoyl]glycerol)
500 µg/mL in pyridine, 1 mL/ampul
cat.# 33020 (ea.)
Glycerin (56-81-5)
Glycerin
5,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33021 (ea.)
Monolein (1-mono[cis-9-octadecenoyl]-rac-glycerol) (111-03-5)
Monolein (1-mono[cis-9-octadecenoyl]-rac-glycerol)
5,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33026 (ea.)
Monopalmitin (524-44-9)
Monopalmitin
8,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33025 (ea.)
8,000 µg/mL in pyridine, 5 mL/ampul
cat.# 33033 (ea.)
Tricaprin (1,2,3-tricaprinoylglycerol) (621-71-6)
Tricaprin (1,2,3-tricaprinoylglycerol)
5,000 µg/mL in pyridine, 1 mL/ampul
cat.# 33023 (ea.)
Triolein (1,2,3-tri[cis-octadecenoyl]glycerol) (122-32-7)
Triolein (1,2,3-tri[cis-octadecenoyl]glycerol)
ASTMMethod D6584-10 and EN14105 (Biodiesel)
5,000 µg/mL in methylene chloride, 1 mL/ampul
cat.# 31880 (ea.)
Diesel:biodiesel (80:20) (67784-80-9)
Diesel:Biodiesel (80:20) Blend Standard
The biodiesel component is methyl soyate.
See