14 Advanced peristaltic pump for atomic spectroscopy
Since the pioneering work of German scientists Robert Bunsen and Gustav Kirchhoff in the 19th century, atomic spectroscopy has evolved into a widely adopted analytical method used worldwide for routine applications. In atomic spectroscopy, particularly in the field of inductively coupled plasma mass spectrometry (ICP- MS) and inductively coupled plasma optical emission spectrometry (ICP-OES), multielement analysis of liquids is crucial. Both methods utilise the same inductively coupled plasma source, acting as either an emission or ion source for mass spectrometry.
For the efficient transport of liquid samples, peristaltic pumps have become essential, overcoming changes in composition and viscosity that can lead to matrix effects. These pumps operate by compressing and relaxing a trapped liquid volume within an elastic tubing, pressed against a curved pressure plate in the pumping head. The entrapped liquid is continuously transported toward the nebuliser through the rotation of the roller head, ensuring that the sample remains in contact only with the metal-free tubing. This allows for the transport of samples over extended distances to the ICP spectrometer.
The newly introduced ‘Easy Click’ peristaltic pump represents a significant advancement in this technology. Utilising the ‘easy click’ principle, the pressure of the plate is pre-adjusted by a spring, eliminating the need for manual optimisation and enabling an immediate start to the analysis sequence. This innovative feature simplifies the operation and expedites the workflow.
In a comprehensive study conducted by the Bundesanstalt für Materialforschung und -prüfung (BAM) in Berlin, Germany, Spetec tested two different peristaltic
pumps alongside the ‘Easy Click’ pump on a simultaneously measuring ICP-OES instrument. The investigation revealed that all analytical figures of merit, including limits of detection (LOD) and signal stability, for a variety of elements did not significantly differ among the tested pumps. The ‘Easy Click’ pump demonstrated LODs in the lower µg/L range, achieving standard deviations of less than 1% for eight elements and less than 2% for the remaining two.
In summary, the “Easy Click” peristaltic pump from Spetec not only competes with reference pumps in terms of analytical performance but also stands out for its convenient and rapid tubing changes without the need for further adjustment.
More information online:
ilmt.co/PL/8xQy 61999pr@reply-direct.com Advanced detection of silicone contamination in industrial applications
Hiden Analytical, a pioneer in materials analysis and diagnostics, has unveiled a ground-breaking advancement in detecting and analysing silicone contamination across various industrial applications. The focus is on Polydimethylsiloxane (PDMS), a prevalent silicone-based compound found in products like lubricants, cosmetics, food additives, and sealants.
While PDMS is generally inert and non-toxic, it presents a substantial risk in specific industrial processes. The compound can degrade into silicon dioxide, potentially forming insulating layers in electronic components and hindering surface bonding applications. Additionally, due to its resilient nature, removing PDMS is a challenging task, making contamination a critical concern. Incomplete removal may lead to recoating after cleaning, as PDMS is highly surface mobile.
Hiden Analytical has introduced cost-effective instrumentation utilising Secondary Ion Mass Spectrometry (SIMS) technology to rapidly detect silicone presence, even in minute quantities. Unlike traditional expensive SIMS techniques, Hiden Analytical’s innovation allows detection without placing the component inside the vacuum chamber, making it a more accessible solution.
SIMS technology excels in detecting PDMS contamination, even when it is just one molecule thick. An added advantage is its capability to analyse the resulting silicon dioxide layer, even if the silicone has undergone degradation. This level of detailed analysis proves invaluable in understanding the effects of contamination on industrial processes.
Dr Graham Cooke, Principal Scientist at Hiden Analytical, emphasised the critical role of addressing industrial contamination for maintaining manufacturing quality and efficiency. He highlighted that the advanced SIMS technology provides unprecedented depth resolution, detecting nanometre-sized features and offering detailed insights into the impact of contamination.
This development signifies not only a technical milestone but also underscores Hiden Analytical’s commitment to supporting industries in overcoming challenges posed by microscopic contaminants. The application of SIMS, particularly in semiconductor manufacturing and other sectors requiring high-purity materials, showcases the technology’s potential in enhancing quality control and ensuring product integrity.
More information online:
ilmt.co/PL/ZbZW 62000pr@reply-direct.com Advanced FTIR spectrometer enhances analytical workflows
Thermo Fisher Scientific introduces the Thermo Scientific™ Nicolet™ Apex FTIR Spectrometer, an advanced infrared spectrometer catering to diverse analytical needs, including materials analysis, pharmaceutical research, and environmental monitoring.
Featuring the innovative Nicolet Apex spectrometer, this solution surpasses comparable options in the market, incorporating the fast TE-MCT detector and the user-friendly Thermo Scientific™ OMNIC™ Paradigm Software. The software accommodates varying user experience levels and facilitates the creation of new workflows, ensuring accurate analysis of organic and inorganic materials. Its applications span quality control, product development, and research activities.
Replacing its predecessor, the Thermo Scientific™ Nicolet™ iS20 FTIR Spectrometer, the Nicolet Apex employs cutting-edge hardware and software elements, such as a patented interferometer design, automated background correction, and an intuitive user interface, delivering unparalleled performance in the FTIR instrument landscape. Thermo Fisher Scientific provides a spectrum of benchtop FTIR spectrometers, ranging from cost- effective routine use to high-end R&D solutions.
The Nicolet Apex stands out for its robust performance, facilitating quick and efficient analyses, making it an ideal choice for professionals in
pharmaceuticals, chemicals, food and beverage, environmental analysis, or research laboratories seeking high-quality spectroscopic analyses within budget constraints. More information online:
ilmt.co/PL/34NQ
62202pr@reply-direct.com Screening and quality control of palm oil with NIR spectroscopy
Palm oil is an edible oil from the fruit of oil palm trees and can either be produced into palm kernel oil or red palm oil. It found in more than 50% of prepackaged consumer goods - from pizza to deodorant. Currently, plantations in Indonesia and Malaysia supply over 85% of palm oil used all over the world.
Screening and quality control are critical in ensuring that certain specifications are met for palm oil use in several industries. One simple way to do this is with near-infrared (NIR) spectroscopy. NIR spectroscopy is not only useful for quality control during production, but also for companies that procure palm oil and need to assess it quality before using it in other products. The two major advantages for using NIR spectroscopy solutions from Metrohm when dealing with palm oil is the simplicity regarding the sample measurement and the speed at which it can be done.
More information online:
ilmt.co/PL/NAql 62227pr@reply-direct.com
INTERNATIONAL LABMATE - APRIL 2024
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