The FAME Biofuel Analyzer also known as the Pearl Analyzer makes sampling the fatty acid methyl ester (FAME) content of biodiesels faster and more simple than ever before. FAME content influences the quality and performance of diesel fuels, therefore accurate and reliable methods of measuring FAME content is essential. FTIR spectroscopy using the Pearl Analyzer is by far the most practical solution for measuring the FAME content of biodiesels as it provides for quantitative measurements with straight foward procedures and minimal sample preparation to obtain precise results down to concentrations of 0.02% with a pathlength of 500μm. FAME molecules absorb infrared energy at 1745 cm-1 due to their ester carbonyl bonds and by measuring the absorption, the FAME content of the biofuel can be calculated. The analysis takes less than a minute for each sample. Scroll below for order details.
There are two standard test methods for quantifying FAME in diesel blends using FTIR spectroscopy: ASTM D7371 and EN 14078. EN 14078 requires the fuel sample to be diluted in Hexane but involves a comparatively simple calibration procedure and provides greater sensitivity than ASTM D7371. ASTM D7371 involves conducting the measurement on a neat fuel sample which requires less sample preparation and provides rapid analysis but a more complex calibration procedure is needed and the method is not suitable for measuring FAME levels below 1%.
Read this brief FAME Biofuel Application Note
to appreciate the results that can be achieved using this accessory and
to watch a short video demonstrating how easy it is to use.
The Pearl Analyzer incorporates an Oyster Cell held in a horizontal plane which as the name Oyster implies invites a simple introduction of sample onto the pre-aligned bottom shell surface then interfaced with the pre-aligned top shell surface. Remove the top shell, clean the surfaces using using a soft tissue with an appropriate solvent and your ready for your next sample. The Oyster Cells are highly suitable for analyzing viscous and volatile materials. For volatile samples such as diesel, gasoline and other petroleum-based fuels, there is an injection access port in the top Oyster shell so the cell assembly does not have to be fully opened. At all times, the samples can be viewed through the two windows, allowing the user to ensure that no bubbles have been trapped.
The Pearl Analyzer permits the easy interchange of Oyster Cells which can be fitted with ZnSe or CaF2 windows and available in six pathlengths including 25μm, 50μm, 100μm, 200μm, 500μm and 1,000μm. To interchange pathlengths, simply replace the bottom Oyster shell.
You may refer to this Product DataSheet
to assist with ordering the items below. Recall to specify your spectrometer make and model.
Combined with a FAME Biofuel Autosampler
fully automated measurement of even larger sample numbers is possible. Using a 24 well microtiter plate format enables 24 unique measurements to be conducted within one run.
If flow through analysis is required then refer to our series of RoHS Compliant Liquid Flow Cells
and Process Flow Cells
. The process flow cells facilitate the acquisition of continuous online spectroscopic absorbance process measurements and are typically installed as part of the process circuit either directly in the process stream or as a by-pass loop. By adopting the process flow cell in a by-pass loop configuration, the user has the opportunity to isolate the process flow cell from the process cell for routine cleaning, servicing, or calibration.