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Environmental Laboratory
Polar, Mixed-Mode Selectivities Added to HPLC/UHPLC Column Line
Phenomenex Inc. work in the Luna column family. The first is the new Luna Omega Polar C18 stationary phase – a unique selectivity on an innovative silica particle that delivers a wide elution window and combined high retention for polar and nonpolar analytes. This new phase is 100 percent aqueous-stable due to a polar-modified surface, providing flexibility in solvent and gradient system selection needed to achieve desired polar/non polar analyte separation. The Luna Omega Polar C18 is offered in a high-performance 1.6µm particle for UHPLC instruments as well as a low-pressure 5µm particle for direct scalability to analytical HPLC or preparative work. The 5µm particle is available in Phenomenex’s patented Axia-packed preparative columns. Phenomenex is also introducing the 100 percent aqueous-stable Luna Omega PS C18 that delivers two distinct separation mechanisms at the same time. The particle surface of the PS C18 contains a positive charge that facilitates greater acidic compound retention through ionic interaction, while the C18 ligand delivers general reversed-phase retention. This mixed-mode selectivity is a valuable tool for greater separation between mixtures of compounds that have varying functional groups, such as peptides, pesticides or metabolite profiles. Additionally, the positive surface charge encourages excellent basic compound peak shape through the ionic repulsion of these compound species. Luna Omega columns are well suited for a wide range of applications including drug discovery and development, food contaminant analysis, environmental testing, toxicology and clinical research. “Our Luna HPLC brand is one of the most recognized in the global chromatography industry, with a 20-year track record,” commented Simon Lomas, strategic marketing manager for Phenomenex. “The recent expansion of this column family with novel Luna Omega silica particle technology and mixed-mode polar stationary phases has enabled us to bring the Luna legacy to the UHPLC world.” Phenomenex Kinetex Core-Shell Technology and Luna Omega columns together provide an ideal complementary UHPLC solution for greater efficiency and separation power. With a growing range of valuable selectivities, this pairing of core-shell and fully porous UHPLC products affords customers a better choice for immediate gains in productivity, resolution and retention. Combining the Luna Omega Polar C18 with the previously released fully porous Luna Omega 1.6µm C18 and Kinetex 1.7µm core-shell phases further expands the options for UHPLC method development and improvement.
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The Long and the Short of Environmental Sampling Management!
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Autoscribe Informatics is providing two opportunities to have a close-up look at the new Environmental Sampling module for the Matrix Gemini LIMS (Laboratory Information Management System). A 4-minute video provides a short demonstration of this
versatile module which has been designed in conjunction with a leading food safety organisation, Deibel Laboratories. Aimed at anyone involved in environmental sampling of production and storage areas in food/beverage production and other industries, it uniquely links sampling point locations, test results and corrective action plans in one easy to use graphical environment.
For those who would like a longer and more detailed demonstration of the system, a recording of a webinar on the subject (
https://attendee.gotowebinar.com/ recording/4255505100217238788), recently presented by Autoscribe Informatics, is now available to view. The software demonstration is presented against the background of the need to move away from screening towards preventative measures against food-borne contamination both as required by the new Food Safety Modernisation Act (FSMA) implemented by the FDA, and in terms of the financial benefits of this approach.
The webinar covers the factors to consider when implementing an environmental monitoring program. The demonstration shows many facets of the software including how it provides:
• Set up of locations and sampling sites • Visual maps of results status • Trending of results
• Assignment of actions when the results indicate the need • Association of results with a sampling site • Reporting of results
The software provides clear documentation of preventative measures against food-borne contamination. This includes the ability to report the results and corrective actions taken when microorganism levels exceed safe levels. It provides an easy framework for expert set up and adjustment of the system while reducing the expertise needed to operate it on a daily basis. It allows the implementation of data management strategies that increase security and the availability of data.
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AET Annual Buyers Guide 2017
www.envirotech-online.com
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Fast and reliable multi-element analysis in most diverse matrices and simple handling are prerequisite for efficient applications in routine and research. With its unique technology but typical AAS-handling, contrAA®, from Analytik Jena, provides the perfect answer to all application requirements. The use of a Xenon short-arc lamp emitting a continuous spectrum across the entire AAS wavelength range and the fast high-resolution spectrometer with CCD array detector not only provide fast sequential and simultaneous multi-element analysis but also element screenings and the analysis of nonmetals (e.g. sulphur, halogens) using their characteristic molecular absorption bands.
The Xenon lamp produces a significantly higher intensity than traditional AAS lamps, contributing to an improved signal- noise-ratio, which improves detection limits by up to an order of magnitude. It also allows the use of secondary wavelengths with only a fraction of the sensitivity of the primary one, and which can be used to analyse higher concentrations without compromising precision. Sample preparation is reduced to a minimum. Multiple dilutions of a sample are a matter of the past. Instead, the instrument’s working range is easily adapted by selecting a suitable wavelength.
In combination with the Dynamic Mode, contrAA® allows the measurement of ultra-trace and major elements within a single method. Using the Dynamic Mode allows manual or automatic adjustment of the dynamic working range of the instruments according to the concentrations encountered in samples. Multiple calibration curves can be connected to a wide range calibration covering up to 5 orders of magnitude. This further contributes to fast and easy multi-element measurements and makes light work of quality control analyses in industries such as food production.
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As part of our commitment to the emerging industry of medical cannabis analysis, Restek has expanded its selection of cannabinoid-related reference standards by adding cannabidiolic acid (CBDA). This 1,000 ppm standard is DEA-exempted, so there’s no need to purchase costly neat materials or to make your own standards, and it is prepared in acetonitrile, which helps maintain stability by preventing methylation of the carboxylic acid group on the molecule. Paired with Restek’s THC standards, it is perfect for the analysis of both neutrals and acids in cannabis products by LC and is a must for accurate quantification in medical cannabis potency testing and strain ID. Restek’s CBDA standard is also a certified reference material (CRM) so you know that it meets strict ISO quality requirements.
From potency to pesticides analysis, Restek offers the LC and GC chromatography columns, CRMs, accessories, and sample prep supplies—as well as technical literature and support— needed for accurate, reliable medical marijuana analysis. Learn more about Restek’s products and resources at
www.restek. com/medical-cannabis and start growing your medical cannabis testing business today.
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Fast Multi-Element Analysis within a 5-Orders Dynamic Measurement Range
Test Medical Cannabis Potency with Greater Accuracy Using New DEA-Exempted CBDA Certified Reference Material
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