P, S and Cl in Bio-diesel and Bio-ethanol with Primini Biofuel - 1032

This note describes quantitative analysis of trace amounts of P, S and Cl in biofuels using the Primini Biofuel, dedicated for P, S and Cl analysis.


Utilization of non-fossil fuels such as bio-ethanol and bio-diesel has been increased, in addition to efficient use of conventional fossil fuels such as hydrocarbon fuels, for prevention of global warming. The contents of phosphorus, sulfur and chlorine in conventional fuels have been reduced for protection of engines and catalysts in addition to the prevention of air pollution. Likewise, the contents of the elements for biofuels are regulated.

In the analysis of biofuels, content of oxygen and CH ratio influence the analysis results of these elements. We have developed a new method to correct for the influence using scattering X-rays from samples.

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Rigaku's Primini Biofuel is suitable for phosphorus analysis in biodiesel for EN14214 and ASTM D6751. It is optimized for sub-ppm detection limits of P, S and Cl and features easy operation without chemical treatment of the samples. Easy sample preparation and operation reduces the need for a highly skilled operator. A helium atmosphere is maintained in the spectroscopic chamber and sealing film separates the sample chamber from the spectroscopic chamber, protecting the X-ray tube and the spectrometer in the event of a spilled oil sample. Read more...

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