Determination of phosphorus in biodiesel using FIA with spectrophotometric detection

作者：Bezerra Lira Liliana Fatima; dos Santos Daniele C M B; Guida Mauro A B; Stragevitch Luiz; Korn Maria das Gracas A; Pimentel Maria Fernanda; Silveira Paim Ana Paula

来源：Fuel, 2011, 90(11): 3254-3258.

DOI：10.1016/j.fuel.2011.06.022

• Biodiesel
• FIA
• Phosphorus
• ICP OES
• Digestion

In this work, a method for the determination of phosphorus in biodiesel (B100) using flow injection analysis with spectrophotometric detection (FIA-SD) is described. Samples were digested using an acid mixture in a heating block. The phosphorus concentrations obtained by the (FIA-SD) method were similar to those obtained by the official method. Recovery tests show results between 98.6% and 101.0% for biodiesel produced from sunflower and between 102.1% and 113.5% for biodiesel produced from castor and soybeans. The limits of detection (LOD) and quantification (LOQ) obtained using the FIA system were 0.14 mg L-1 and 0.46 mg L-1, respectively.

• 出版日期2011-11