Mass Spectrometry & Spectroscopy 9 New Peristaltic Pump for Atomic Spectroscopy Announced
Since German scientists Robert Bunsen and Gustav Kirchhoff have discovered that the colour of a fl ame changed once an element was introduced, atomic spectroscopy has developed into one of the most successful analytical methods, which is applied every day worldwide and routinely. Among the different methods in atomic spectroscopy both multielement methods ICP-MS and ICP-OES have been extremely successful for the analysis of liquids. For transport of the liquid sample peristaltic pumps are well established to overcome any change in the composition leading to changes in viscosity thus reducing matrix effects. The material for the elastic tubing can be selected depending on the chemical properties of the analyte solution, so that even strong acids or organic solvents can be transported. However, sometimes signal pulsations are observed with very sensitive devices, so that they need to be reduced by manually optimising the pressure of the pressure plate. Such an optimisation is not required any more for a new generation of pumps. It is based on the ‘easy click’ principle, where the pressure of the plate is adjusted already by a spring, so that no manual optimisation is needed any more, and the analysis sequence can be started immediately.
In an investigation of the Bundesanstalt für Materialforschung und -prüfung (BAM) in Berlin, Germany, Spetec has tested two different peristaltic pumps and the ‘Easy Click’ pump operated on a simultaneously measuring ICP-OES instrument, to see whether or not any difference of the analytical fi gures of merit can be observed (the whole report is available on request). This investigation had demonstrated that all analytical fi gures of merit including limits of detection (LOD) and signal stability of in total ten elements (Al, Bi, Co, Cr, Cu, Fe, Mg, Mn, Ni, Se) from a standard solution do not differ signifi cantly for all tested pumps. The resulting LODs measured are in the lower µg/L range and standard deviations of less than 1% for eight and less than 2% for the remaining two elements have been achieved.
As a fi nal result Spetec can say that the ‘Easy Click’-pump can compete with the two reference pumps concerning the analytical fi gures of merit but excels with easy and fast changing of tubing without any further adjustment.
More information online:
ilmt.co/PL/EzA9 2D-Barcoded NMR Tube Scanner
The Express Scanner from Ziath is an elegant and rapid solution for ensuring the traceability of samples in 2D-barcoded Nuclear Magnetic Resonance (NMR) tubes. This new product delivers an industry-leading fast scan and decode time for a full rack of 2D-barcoded NMR sample tubes in under 3 seconds.
Traditionally 2D-barcoded NMR tubes are diffi cult to read with a conventional scanner, as the caps are on the top of the tubes and most scanners are designed to read from underneath.
Working closely with a leading European NMR spectrometry lab, the Express scanner is designed to operate on top of the sample tubes without applying any weight which could damage them. In addition, for Bruker NMR spectrometer users, Ziath provides a dedicated slide for their tube carriers which can only be inserted in one orientation, thereby conserving the origin position (the ‘A1’ position) each time.
The Express Scanner is supplied with a controller which controls scanning and data processing using Ziath industry-standard Datapaq software (version 3.17) or new DP5 web enabled software which enable exporting of tube barcodes in tables, as text, JPEG, XML, XLS fi les and in JSON formats.
For convenience, and to preserve valuable laboratory bench space, the Express Scanner controller can be separated and positioned under your lab bench. More information online:
ilmt.co/PL/wZB4
52663pr@reply-direct.com ADVERTORIAL
New Portable Quadrupole Analyser Introduced
Low Field NMR Instrument for Particle Characterisation and Surface Analysis of Dispersions
The Mageleka Magnometer XRS is a new low-cost instrument for routine analysis of complex solid-liquid and liquid-liquid formulations using non-invasive technology based on NMR liquid relaxation.
In every industrial application a knowledge and understanding of the molecular structure and dynamics at the particle-liquid interface is critical to improving or optimising suspension and emulsion product performance at every stage from initial formulation to fi nal manufacture. The Magnometer XRS provides direct information about the extent and nature of any particle-liquid interface of suspensions and emulsions in a matter of minutes.
Measurements with the Magnometer are simple and easy, the sample is placed into a standard NMR tube and then inserted into the MagnoPod©
, the test sequence is then initiated and the result
Hiden Analytical introduces the new pQA portable gas analyser, a versatile mass spectrometer offered with a range of interchangeable sampling inlets to suit a broad application range. MIMS inlets are offered for analysis of dissolved species in ground water, fermentation cultures, soil samples, and general applications where analysis of dissolved species in liquid sample is required. The system is suited to gas analysis applications, where sample volume is small, and for environmental applications where detection of low concentration levels is required. The pQA system has a mass range of 200 amu and sub ppb detection levels. Extended mass range to 300amu is optional.
The system is supplied in a Pelican® case and can be
powered by a 12 V supply for fi eld use, battery and/or solar powered, or a 220 V supply for laboratory use.
More information online:
ilmt.co/PL/3kRG 52445pr@reply-direct.com
reported in under 2 minutes. An exceptionally wide concentration range of 0.01% to 90+% with small sample size of 0.1mL or less and with little or no sample preparation, the Magnometer is perfect for routine analysis of particles suspended in solvents and melts regardless of shape and size. With no prior NMR experience required, the Magnometer is suitable for chemists, technicians or plant workers. The separate magnet assembly allows for remote or glove box operation, an optional programmable temperature-controlled unit is idea for environments where temperature stability is required. The technique is non-destructive so perfect for long term studies.
Applications include batch-to-batch reproducibility in a manufacturing environment, formulation development, kinetic processes, surfactant and competitive surfactant adsorption, aggregation and fl occulation, sedimentation studies, presence of para- and ferro-magnetic impurities, oxygen and water content of solvents, molecular weight of polymers in solution (by calibration) polymer and solvent viscosity and additive studies.
Industries served include catalyst, pharmaceutical and personal health care providers, paints & pigments, ceramics and refractories, agro chemicals, cosmetics, batteries, electronics, nano medicine and graphene/graphene oxides.
More information online:
ilmt.co/PL/gzmm 52899pr@reply-direct.com
52808pr@reply-direct.com
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