Pure Chromatography
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Impurities in Biodiesel on Rtx-Biodiesel TG by ASTM D6584
| Peaks | tR (min) | |
|---|---|---|
| 1. | Glycerol | 4.80 |
| 2. | 1,2,4-Butanetriol (IS) | 5.50 |
| 3. | Monoglycerides | as shown |
| Peaks | tR (min) | |
|---|---|---|
| 4. | Tricaprin (IS) | 19.19 |
| 5. | Diglycerides | 20.16 - 20.9 |
| 6. | Triglycerides | 22.27 - 25.15 |
GC_PC1367
| Column | Rtx-Biodiesel TG with 2 m x 0.53 mm ID retention gap, 15 m, 0.32 mm ID, 0.1 µm (cat.# 10293) |
| Sample | Soy B100 biodiesel |
| Tricaprin (1,2,3-tricaprinoylglycerol) (cat.# 33025) | |
| (s)-(-)-1,2,4-Butanetriol (cat.# 33024) | |
| Diluent: | Heptane |
| Injection | |
| Inj. Vol.: | 1 µL cool on-column |
| Temp. Program: | Track oven |
| Oven | |
| Oven Temp.: | 50 °C (hold 1 min) to 180 °C at 15 °C/min to 230 °C at 7 °C/min to 380 °C at 30 °C/min (hold 2 min) |
| Carrier Gas | H2, constant flow |
| Flow Rate: | 2.7 mL/min |
| Detector | FID @ 380 °C |
| Instrument | Agilent 7890B GC |
| Notes | Sample preparation followed ASTM D6584-17: Soy biodiesel B100 was fortified with internal standards (butanetriol and tricaprin) and derivatized using MSTFA. |
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Copyright © 2021 Restek Corporation. All rights reserved.
A Company of Owners
Cookies allow for a variety of features that make your visit to Restek more enjoyable. By using this website, you agree to the use of cookies in accordance with our guidelines. For more information, see our privacy policy.