柴油或民用加热燃料中脂肪酸甲酯检测方案(红外光谱仪)

Analytical EquipmentINFRARED FOURIER SPECTROMETERInfraLUM FT-08 DETERMINATION OF FATTY ACID METHYL ESTER (FAME)CONTENT INDIESEL FUEL OR DOMESTIC HEATING FUEL BY mid-IR SPECTROSCOPY EN 14078：2014 INTRODUCTION Presence of fatty acid ethyl esters (FAME) in diesel fuel or domestic heating fuel (both hereinafter referred toas diesel fuel) is a signal of blending with biodiesel. The control of FAME content in diesel fuel is an essentialand actual task because of the need of the right fuel identification and registration of possible FAME impacton engines and fuel systems. To control the compliance one of the most accurate， rapid and simple methodsis EN 14078：2014. Lumex Instruments provides user-friendly analytical solution for EN 14078：2014 implementation using FTIRspectrometer InfraLUM FT-08 and powerful SpectraLUM software package. FAME content can also be measured by InfraLUM FT-08 in accordance withother standardl methods(ASTM D7371-14etc). Thesemeasurementprocedures are not given in the application. MEASUREMENT METHOD The method is based on measuring the transmission spectra of a sample ofdiesel fuel in the mid-IR spectral range. Consequent calculation of the FAMEconcentrationis performed byInfraLUMsoftware automatically bbycomparison of peak height against a calibration curve. MEASUREMENT RANGE Measurement range，%(V/V) Directives & standards for fuels Max.FAME value. %(V/V) 0.05-50 Worldwide Fuel Charter (5th ed.， 2013) <5 ISO 8217：2017 Petroleum products - Fuels (class F)-Specifications of marine fuels <7 ASTM D975-17aStandard specification for diesel fuel oils <5 Directive 2009/30/EC Fuel Quality Directive <7 EN 590：2013 Automotive fuels. Diesel. Requirements andtest methods <7 CAN/CGSB-3.517-2017 Diesel fuel <1 GB 19147-2016 Automobile diesel fuels <1 MEASUREMENT PROCEDURES The sample of diesel fuel is injected into the cell and the IR transmission spectrum of the solution ismeasured at around between 1670 cm" and 1820 cm， where FAME has strong absorption at 1745±5 cmdue to the ester carbonyl bond and where fossil diesel is transparent. Then the volume content of FAME inthe sample is calculated using the preliminary prepared calibration. EN 590 compatible analysis protocolcould be printed in one click. ADVANTAGES Using this measuring method with InfraLUM FT-08 provides the following advantages： . Higher accuracy and sensitivity of analysis compared to other IR-techniques Much simpler calibration procedure . Time of analysis (without sample preparation) is only 1 minute Ease of use Distinctive features of the InfraLUM FT-08： Outstanding technical specifications Hermetically sealed optical compartment with the automated moisture monitoring system ● Enlarged cell compartment . Wide variety of accessories from Lumex Instruments & PIKE Technologies Automatic validation system of the spectrometer， IQ/OQ protocols ● Remote diagnostics of the spectrometer User-friendly software with integrated calibration module EQUIPMENTAND REAGENTS The following equipment and reagents are used in measurements： FTIR spectrometer InfraLUM FT-081 (with dedicated software SpectraLUM) Cell holder and liquid cells Syringe for cell filling Certified reference material of FAME (as specified in EN 14214) FAME free middle distillate Cyclohexane '- Supplied by Lumex Instruments- Windows only compatible. EXAMPLES OF FAME ANALYSIS IN DIESEL FUEL Examples of FAME absorption peaks： standard solutions with the FAME content of 0.05-1%(VV) Analysis protocol of a real sample. REPORTNo154 Report created： 2018-02-1408：43：05 InfraLUM FT-08 No 18442 SpectraLUM v2. 0.1.278 Results Sample FAME，%(v/v). biodiesel No 154 2.4 Applied calibrations Calibration name Component FAME new FAME Operator XXX Laboratory XXX The contents of this paper are subject to change without notice.To get more specific information， please contact the representative byy sales@lumexinstruments.com www.lumexinstruments.ccm     柴油或民用柴油燃料中（以下统称柴油燃料）脂肪酸甲酯的存在，是生物柴油混合的重要标志。由于需要注册登记脂肪酸甲酯对发动机和燃料系统的影响，所以柴油燃料中脂肪酸甲酯含量的控制是一项非常重要的任务。EN 14078:2014.是为了控制其符合性的一种最准确、快速和简单的方法。    LUMEX公司使用FT-08红外光谱仪和其强大的光谱软件包可以为EN 14078:2014方法提供友好的分析解决方案。FT-08红外光谱仪也可以满足ASTM D7371-14等方法中脂肪酸甲酯的测定。    本法的优势：1.与其它红外技术相比，更高的分析精度和灵敏度；2.更简单的校准程序；3.样品分析仅需要1分钟（不包含样品预处理）；4.使用更方便。