Pearl Liquid Transmission Accessory
FT-IR spectroscopy's latest innovation in liquid transmission analysis
i am having very good experience, with reproductible results.
Conformational analysis
Very handy to use. It is especially good for my applications because it is not necessary to purge the spectrometer chamber by changing samples. Much better than the conventional liquid IR cells.
Review Date: 17 Apr 2023 | Specac Ltd
At the heart of the Pearl™ accessory is Specac's innovative Oyster™ cell assembly, which forms a fixed pathlength without spacers or fasteners. The top part of the cell can be simply lifted out of the way to allow for fast and easy application and cleaning of the sample. For more volatile samples, there is an injection access port in the top of the Oyster™ cell so that the assembly does not have to be fully opened. The sample can be viewed through the two windows, allowing the user to ensure that no bubbles have been trapped.
The Oyster™ cell can be cleaned very easily and quickly using tissue and an appropriate solvent. The Pearl™ has been designed to provide a more accurate pathlength than can be achieved using a traditional liquid transmission accessory, with pathlengths repeatable to significantly better than 1 μm thanks to the Oyster™ sample holder.
Oyster™ cells have the unique feature of being offered with either parallel mounted windows, or windows with a slight wedge angle to remove troublesome fringing patterns. Pearl™ can be fitted with ZnSe or CaF2 Oyster™ cell assemblies which can be interchanged in seconds. Oyster™ cells are available in six pathlengths from 25 to 1000 μm.
The Oyster™ cell mechanism is so easy to use that it makes the Pearl™ accessory suitable for handling highly viscous samples such as oils and greases.
Brochures
Guide to The Specac Pearl Liquid Transmission Accessory
This data sheet provides an overview of the key features, benefits, and applications of Specac's Pearl Liquid Transmission Accessory.
Quantifying simeticone in over-the-counter medicines using FTIR spectroscopy
In this application note, Specac presents experimental data on the use of Fourier transform infrared (FTIR) spectroscopy in the quantification of simeticone in over-the-counter medicines, and introduces the Pearl™ liquid transmission accessory. Quantification of the Active Pharmaceutical Product (API) in a finished product is vital to ensure the end consumer gets the correct dosage of the drug. Too little and the desired effect may not be achieved, too much and there is a risk of overdose. FTIR spectroscopy affords a rapid cheap method for the routine testing of a wide range of pharmaceuticals when enabled by time and effort saving transmission accessories. An example of recent interest to the industry is the quantification of simeticone in medicinal formulations found on the high street.
FTIR spectroscopy: Sampling accessories to boost your research
Fourier-transform infrared (FTIR) spectroscopy is used to probe the molecular vibrations of a sample, generating a chemical fingerprint from the molecules present within the beam of light. The technique has been employed in numerous ways across multiple fields, but whatever the aim of the experiment, an accessory is required to contain the matter under study and direct the light onto it.
In this application eBook, we review the literature for some of the most advanced FTIR spectroscopy products and explore cutting-edge research across a diverse range of fields, including sections on:
- Liquid transmission analysis – from the analysis of biodiesel blends to the detection of fake fish oil
- Attenuated total reflectance – the basics, penetration depth, advanced measurements, and more
- Advanced spectroscopy – including catalytic studies and the spectroscopy of gases
Analyzing milk quality control with the Pearl
This application note describes a method to determine purity and characterize the contents of dairy samples, using the Pearl™ liquid transmission accessory from Specac. The Pearl™ accessory is designed for rapid throughput, and sample loading is easy, requiring little user training.
Determining Pathlength in Parallel Window Liquid Cells
This application note explains how to determine the pathlength in liquid cells with parallel windows, such as the Specac Omni-Cell or Pearl (when fitted with a parallel window Oyster cell).
Olive Oil Analysis with the Pearl FTIR Accessory
This application note demonstrates how the Specac Pearl is the ideal tool for the analysis of edible oils like extra virgin olive oil and other viscous liquids.
Pathlength Reproducibility using the Pearl
The Pearl™ liquid transmission accessory is designed to make the IR spectral measurement of liquids quick, easy and highly repeatable. This note demonstrates the repeatability of a 25 μm pathlength cell, called an Oyster Cell, comprising ZnSe windows.
Overcoming Trapped Vapours in the Pearl
This application note demonstrates how any trapped volatile vapours can be evacuated effectively by blowing air through the purge hold of the Pearl™ using a hand help puffer.
Analyzing Chocolate using the Pearl Accessory
This poster demonstrates the use of the Pearl™ liquid IR transmission accessory for chocolate quality-check analysis. Food industries require a fast reliable and non-destructive method to analyze chocolate chemical composition. The Pearl™ can be used to quickly determine the chemical composition of cocoa products.
Traditional Omni-Cells vs the Pearl Accessory
Traditionally, a vertically mounted liquid cell, such as the Omni-cell, was used to record IR spectral measurements. This application note shows how the Pearl™ Liquid Transmission Accessory has been designed to easily and quickly record highly repeatable IR spectral measurements for a wide variety of samples with high spectral resolution.
IR Spectra of Grease: Pearl vs Quest ATR
This application note demonstrates that The PearlTM liquid transmission accessory is perfect for measuring IR spectra of ‘sticky’ and relatively immobile liquid samples like greases and lubricants as easily, quickly and reliably as a comparable ATR technique, such as with the QuestTM.
Analyzing Milk Using the Pearl IR Accessory from Specac
Spectral analysis of milk to determine fat and lactose content is simple and fast when using the Pearl liquid IR transmission accessory. Whether checking retail milk quality or ensuring the health of newborn calves, FTIR analysis is an invaluable technique for monitoring a herd’s milk production, as well as fertility and even CH4 emissions. The ease, speed and accuracy of this technique contributes to a cost-effective dairy management system and encourages healthy cows and high-quality dairy products for consumers.
Discover Rapid Oil Analysis with the Pearl Oil Analyzer
Dr Fawzi Abou-Chahine, Technical Business Developer for Specac Limited, describes the new Pearl Oil Analyzer. This cutting edge technology enables rapid analyses of oils and viscous liquids, whilst maintaining quality control. Learn more about this simple method, which enables sampling in seconds.
Pearl Liquid Analysis Accessory with a Thermo IS5 Spectrometer
Find out how the Pearl IR transmission liquid analysis accessory can be used with the Thermo IS5 spectrometer to analyze liquid samples.
Introducing the Pearl Liquid IR Transmission Analysis Accessory
This video introduces the Pearl, a fast, accurate tool for analyzing viscous or aqueous liquid samples. It demonstrates loading of the sample and cleaning of the instrument.
Analyzing Fat Levels in Chocolate
The video highlights how the Pearl Liquid Transmission Accessory can be used to analyze chocolate.
Fat Analysis in Chocolate with the Pearl
In this video learn how to measure the nutritional balance of chocolate using Specac's new liquid IR transmission analysis accessory, the Pearl.
Simplifying Quality Control of Edible and Industrial Oils
In this video, Scott Brecker, North American Business Manager, Specac, explains why the Pearl is the ideal accessory for analyzing liquid samples. The Pearl simplifies and reduces the time of analysis, and is ideal for impurity analysis in viscous samples like edible industrial oils. Hear how the Pearl can also be used for the detection of biomarkers in biological samples, with the Pearl’s easy-clean features allowing contamination-free analysis.
Filmed by SelectScience® at Pittcon 2016.
The Specac Pearl: A New and Innovative Liquid Transmission Accessory to Enhance Your FTIR Spectroscopy Analysis
Watch this video to discover how Specac's Pearl accessory can facilitate quick, easy and repeatable analysis of liquid samples. FTIR Spectroscopy is a transmission technique where light passages through the sample and is frequently used for the characterization of liquid samples. Thanks to innovative design features such as the Oyster™ Lift and Tilt cell assembly, the Pearl is able to provide reliable IR spectral results, while greatly reducing time and difficulty of liquid sample analysis.
Here's how scientists detect fake fish oil in dietary supplements
Discover how FT-IR is enabling fast identification of potentially harmful food fraud
New eBook on FTIR spectroscopy details the best sampling accessories to boost your research
Explore a compendium full of tips, tricks, and tools, and explore cutting edge research on FTIR spectroscopy
Trending in food science: From simplified purity determination to fast, accurate spoiler monitoring
Discover the latest technologies and techniques that are revolutionizing quality control in the food industry
Transforming Spectroscopic Research: An Instrumental Story
Discover how a simple change of lab equipment enabled one Ph.D. student to deliver robust results that could help the energy industry
Specac – Enabling Great Science
Catch Specac at Pittcon, booth 4141 to learn about all their latest innovations
Webinar Highlights: Introduction to FT-IR Spectroscopy
In this webinar, Spectroscopist Dr Fawzi Abou-Chahine gives an informative introduction to the fundamentals of modern FT-IR spectroscopy
Exclusive Video Interviews from Pittcon 2016
Learn about the latest technologies showcased at this year’s Pittcon!













































