Biofuels

MET-Biodiesel Capillary GC Column

MET-Biodiesel Capillary GC Column

The MET-Biodiesel was designed specifically for the determination of free and total glycerin in B100 biodiesel samples.

Features and benefits of this column include:

  • Good peak shape and resolution for all glyceride impurities of interest
  • Ability to separate glycerin in addition to mono-, di-, and triglycerides (as methyl esters) from the FAMEs
  • A maximum temperature of 380 °C (isothermal) and 430 °C (programmed), exceeding the temperature limitations specified in biodiesel methods ASTM D6584 and EN 14105:2003
  • Metal was selected as the column material because it holds up better than fused silica under the method conditions, virtually eliminating column breakage
  • Integrated guard protects the analytical column from excess reagent and non-volatile compounds, extending column life with a leak-free connection

Chromatograms
The following chromatograms were generated using the MET-Biodiesel: (click to view)

Blank Containing Internal Standards Only on the MET-Biodiesel
ASTM D6584 Calibration Standard on the MET-Biodiesel, Run 1 on a New Column
ASTM D6584 Calibration Standard on the MET-Biodiesel, Run 100 on the Same Column
EN 14105 Monoglyceride Standard on the MET-Biodiesel
B100 Biodiesel Sample on the MET-Biodiesel

Ordering Information for GC Columns
Description Cat. No.
MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard 28668-U



Chromatograms


Blank Containing Internal Standards Only on the MET-Biodiesel back to list
Peak IDs
1. Butanetriol (I.S.)
2. Tricaprin (I.S.)
Conditions
Column: MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard (28668-U)
Oven: 50 °C (1 min.), 15 °C/min. to 180 °C, 7 °C/min. to 230 °C, 30 °C/min. to 380 °C (10 min.)
Det.: FID, 380 °C
Carrier Gas: helium, 3.0 mL/min.
Injection: 1 µL, cold on-column
Sample: Method blank consisting of Butanetriol Internal Standard (44896-U) and Tricaprin Internal Standard (44897-U), derivatized with MSTFA (394866) then diluted in heptane


ASTM D6584 Calibration Standard on the MET-Biodiesel, Run 1 on a New Column back to list
Peak IDs
1. Glycerin
2. Butanetriol (I.S.)
3. Monoolein
4. Tricaprin (I.S.)
5. Diolein
6. Triolein
Conditions
Column: MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard (28668-U)
Oven: 50 °C (1 min.), 15 °C/min. to 180 °C, 7 °C/min. to 230 °C, 30 °C/min. to 380 °C (10 min.)
Det.: FID, 380 °C
Carrier Gas: helium, 3.0 mL/min.
Injection: 1 µL, cold on-column
Sample: ASTM D6584 Standard Solution 1 (44899-U) plus Butanetriol Internal Standard (44896-U) and Tricaprin Internal Standard (44897-U), derivatized with MSTFA (394866) then diluted in heptane


ASTM D6584 Calibration Standard on the MET-Biodiesel, Run 100 on the Same Column back to list
Peak IDs
1. Glycerin
2. Butanetriol (I.S.)
3. Monoolein
4. Tricaprin (I.S.)
5. Diolein
6. Triolein
Conditions
Column: MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard (28668-U)
Oven: 50 °C (1 min.), 15 °C/min. to 180 °C, 7 °C/min. to 230 °C, 30 °C/min. to 380 °C (10 min.)
Det.: FID, 380 °C
Carrier Gas: helium, 3.0 mL/min.
Injection: 1 µL, cold on-column
Sample: ASTM D6584 Standard Solution 1 (44899-U) plus Butanetriol Internal Standard (44896-U) and Tricaprin Internal Standard (44897-U), derivatized with MSTFA (394866) then diluted in heptane


EN 14105 Monoglyceride Standard on the MET-Biodiesel back to list
Peak IDs
1. Butanetriol (I.S.)
2. Monopalmitin (C16:0)
3. Monoolein (C18:1)
4. Monostearin (C18:0)
5. Tricaprin (I.S.)
Conditions
Column: MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard (28668-U)
Oven: 50 °C (1 min.), 15 °C/min. to 180 °C, 7 °C/min. to 230 °C, 30 °C/min. to 380 °C (10 min.)
Det.: FID, 380 °C
Carrier Gas: helium, 3.0 mL/min.
Injection: 1 µL, cold on-column
Sample: EN 14105:2003 Monoglyceride Stock Solution (49446-U) plus Butanetriol Internal Standard (44896-U) and Tricaprin Internal Standard (44897-U), derivatized with MSTFA (394866) then diluted in heptane


B100 Biodiesel Sample on the MET-Biodiesel back to list
Peak IDs
1. Glycerin
2. Butanetriol (I.S.)
3. Monopalmitin (C16:0)
4. Monoolein (C18:1), Monolinolein (C18:2), Monolinolenin (C18:3)
5. Monostearin (C18:0)
6. Tricaprin (I.S.)
Conditions
Column: MET-Biodiesel, 14 m x 0.53 mm I.D., 0.16 µm with integrated 2 m x 0.53 mm I.D. guard (28668-U)
Oven: 50 °C (1 min.), 15 °C/min. to 180 °C, 7 °C/min. to 230 °C, 30 °C/min. to 380 °C (10 min.)
Det.: FID, 380 °C
Carrier Gas: helium, 3.0 mL/min.
Injection: 1 µL, cold on-column
Sample: B100 Biodiesel plus Butanetriol Internal Standard (44896-U) and Tricaprin Internal Standard (44897-U), derivatized with MSTFA (394866) then diluted in heptane