Direct Hydrotreated Vegetable Oil Analysis in Diesel Blends Using Gas Chromatography and Its Multivariate Analysis Potentials

This work aimed to develop a direct, simple, and low-cost Gas Chromatography (GC) method for quantification of palm-based HVO in diesel blends without the need for complex matrix-dependent models or radioisotope measurements.

Heptadecane, which is present in both HVO and fossil diesel, was used as the reference compound for quantitative analysis, and its peak area was corrected with an internal standard. Pristane, a compound found only in fossil diesel, served as that internal standard. Analytical performance demonstrates excellent linearity (3 – 50 %v/v), precision (%RSD 0.0 – 1.8), accuracy (100.0 – 100.25 %recovery), Limit of Detection (LOD 0.5 %v/v HVO), and Limit of Quantification (LOQ 1.4 %v/v HVO).