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Analysis of ethanol fuel according tostandard methods using the Agilent 5100 SVDV ICP-OES Introduction Fossil fuels have been the main source of energy in industrial applications and transportation for decades.However, depleting reserves, environmental concerns and economic issues have led to the development ofrenewable, cheaper and cleaner alternatives. Bio-ethanol is one of those alternatives and is derived by fermentingthe sugar and starch components of plant byproducts. Different purities of bio-ethanol are used as fuel sources.Hydrated ethanol fuel has not had treatment to remove moisture and contains between 93-96%ethanol. It isoften used in flexible (flex-fuel) or dual fuel engines. Anhydrous ethanol has been treated to remove moisture andhas a purity of at least 99%. It is blended at up to 25% v/v with gasoline. High purity fuel can be contaminated withelemental impurities during production, stockpiling and transportation, so accurate quantitation of metal contentis important.According to ASTM D4806 specification [1] and the Brazilian National Agency of Petroleum, NaturalGas and Biofuels 2 (ANP) Resolution number 19/2015 [2], the presence of Cu, Fe, Na and S in ethanol must becontrolled. Limit concentrations for Cu are 0.1 and 0.07 mg/kg (ASTM and ANP respectively), 5 mg/kg Fe (ANP), 2mg/kg Na (ANP), and 30 mg/kg S (ASTM). In this study, the accuracy, precision and long term stability performanceof the Agilent 5100 Synchronous Vertical Dual View (SVDV) ICP-OES was evaluated for the determination of Cu, Fe,Na and S in ethanol fuel samples according to ASTM D4806 and ANP Resolution 19/2015 methods. 点击下列图标获取免费资料 · Agilent Technologies
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