Determination of Free and Total Glycerol and Mono-, Di-, and Triglyceride Contents in Biodiesel According to EN 14105

User Benefits

- Nexis GC-2060 offers reliable analysis of biodiesel samples regarding their free and total glycerol and mono-, di-, and triglyceride contents, using hydrogen as a cost-effective carrier gas - Hydrogen carrier gas can be used safely through built-in safety measures - The multi-mode injection unit (MMI) allows selection of the preferred injection mode – direct (simple OCI) or convenient splitless PTV mode – both delivering excellent instrument performance in line with the standard’s requirements

Introduction

Playing a vital part in countries’ efforts to lower greenhouse gas emissions, biofuels can be manufactured from various feedstocks such as vegetable oils, animal-derived fats, and recycled cooking oils. Biodiesel production predominantly uses rapeseed, soybean, and palm oils. Because feedstocks are so varied, ongoing quality monitoring is essential - since the raw material’s quality greatly influences the final biodiesel quality. The EN 14105:2024 describes the determination of free and total glycerol contents and mono-, di-, and triglyceride contents in biodiesel by means of gas chromatography with flame ionization detection (GC-FID). Injection shall be performed via on-column injector or an equivalent device. This study shows the analysis of biodiesel originating from rapeseed, soybean, and palm oil using the Nexis GC-2060 gas chromatograph and its multi-mode injection unit (MMI).

August 20, 2026 GMT