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Tag: Atomic absorption Ordering
This Product Focus is on Elemental Spectroscopy; a number of companies have provided information on their key products, their applications and features.

The authors describe the use of a range of complementary methods to explore cellular, physiological and behavioural mechanisms underlying Al accumulation and toxicity, and its eventual fate, using the pond snail as a model organism.

PerkinElmer has added the Atomax line of 1.5″ hollow cathode lamps to its atomic spectroscopy portfolio. The lamps are competitively priced lighting sources in a 1.5″ format that can be used with any commercial AA spectrometer and have been designed to provide sensitivity, stable light output and long life.

Analytik Jena have now sold over 1000 units of the ContrAA range of flame and graphite furnace AA spectrophotometers. www.analytikjenauk.co.uk

Shimadzu has introduced a new series of atomic absorption spectrophotometers. The AA-7000 system, with double beam optics covers fully automatic multi-element analysis in flame and graphite furnace mode.

 

An application note illustrating the analytical capabilities of their iCE 300 Series range of AA spectrometers for monitoring multiple trace metals in rice products has been published by Thermo Fisher Scientific. Food Safety Series–Determination of Trace Elements in Rice Products by Flame and Graphite Furnace Atomic Absorption Spectrometry provides a detailed overview of sample and standard preparation with optimised methods for the analysis of copper, zinc, manganese, cadmium and lead in rice products using flame and furnace AA. Copper, manganese and zinc were analysed using flame AA, as these elements can be found as natural constituents in soils and water, which require detection within the low mg kg–1 (ppm) range. The research also looked for cadmium and lead, as these are toxic elements with no nutritional benefit. Since it was necessary to analyse these elements at trace levels, graphic furnace AA was used. Results were below 5g kg–1 for copper and zinc, below 40 µg kg–1 for manganese, 0.03 µg kg–1 for cadmium and 0.2 µg kg–1 for lead, ensuring regulatory compliance. A certified reference material was used to verify both the flame and furnace methods.

Thermo Fisher Scientific Issue: 21/05 RSN: 135 More information via

Agilent Technologies have signed a definitive agreement to acquire Varian, paying $1.5 billion. As well as adding $1 billion in annual sales to Agilent’s existing $5.8 billion, it significantly expands the range of technologies in Agilent’s portfolio. Varian are particularly strong in NMR, imaging and vacuum technologies, but also can offer a number of atomic and molecular spectroscopies.

Teledyne Leeman Labs has announced the release of its Hydra-C direct mercury analyser, providing a simple, fast and convenient approach to the measurement of mercury in a variety of samples without any sample pre-treatment. The analyser employs US EPA Method 7473 for both laboratory and field analysis for mercury in solids and solutions using thermal decomposition, amalgamation and atomic absorption spectrophoto­metry. Features include no sample digestion, no hazardous chemical waste and a high capacity autosampler which holds up to 70 samples. Applications include analysis of soils, sediments, geologicals, coal, foundry scrap, plastics, cement, sewage/sludge, blood, paints, animal and marine tissues, tobacco and vegetation.

Teledyne Leeman Labs Issue: 21/01 RSN: 100

Princeton Optronics has introduced a high-power, thermally stable, back reflection immune 808 nm semiconductor laser (PO-CSI-70-W808) based vertical-cavity surface-emitting laser technology. The device is composed of a 2-D planar VCSEL array mounted on a high thermal conductivity sub-mount. It produces 70 W output power in CW mode, with a narrow spectral width, thermally stable emission wavelength and low beam divergence. It can also be operated in QCW or short-pulsed mode. It is immune to back reflections and offers reliability since it is not subject to catastrophic optical damage. Such a laser is suited to pumping applications, medical devices and frequency doubling.Princeton Optronics Inc.Issue: 20/06 RSN:

Lambda Advanced Technology has announced the availability of the new “speedwave four” microwave digestion system from Berghof. Featuring Berghof's contact-free temperature measurement system and contact-free pressure measurement system for all sample vessels, the system also has a new controller which includes network compatibility via an Ethernet interface. Used for the preparation of samples for AA, ICP or ICP/MS analysis, it offers digestion control using microwave sample heating to give reduced digestion times and high sample throughput rates. A temperature up to 260°C and operating pressures of up to 190 bar enables a wide range of digestions to be carried out from routine applications in food, environment and medical to hard-to-digest inorganic samples. A choice of digestion vessels allows multiple digestions to be carried out simultaneously.Lambda Advanced Technology LtdIssue: 20/06 RSN:

L. Rello,a E. García-Ruiz,b M.A. Belarrab and M. Resanob*aDepartment of Clinical Biochemistry, “Miguel Servet” Universitary Hospital, Paseo Isabel La Católica 1–3, 50009 Zaragoza, SpainbDepartment of Analytical Chemistry, University of Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain. E-mail: mresano@unizar.es

Introduction

Eliminating childhood lead poisoning: a worldwide concern

Lead exposure is an international issue. Pb may enter biological systems (as Pb2+) via food (e.g. food contaminated from cans containing Pb solders in the joints), water (e.g. use of lead pipes), air and soil (the combustions of leaded fuels have contributed to the accumulation of atmospheric and soil Pb). In the USA, the major source of ingestion in young children seems to be the dust and chips originating from old lead paint (used from 1884 to 1978).1 Foetuses and very young children (up to 36 months of age) are more sensitive than adults to relatively high blood lead levels because their brains and nervous systems are still developing and their blood-brain barrier is still incomplete. Childhood lead exposure has been correlated with school absenteeism, low class ranks, poorer vocabulary, longer reaction times and diminished hand-eye coordination, among other neurobehavioural disorders.

PerkinElmer have introduced their ExoAnalytix initiative. This is initially aimed at food and consumer product safety, water quality and sustainable energy development. The initiative will combine application-focussed solutions with information from leading scientists, industry experts and government. www.perkinelmer.com/ecoanalytix

Katanax electric fluxers are now available through Spex Certiprep for sale in Europe. These automated fusion machines are tied to a simple, yet high-performance, electric furnace while meeting the demands of both small and large sample preparation applications. These fluxes come equipped with everything needed to prepare both disks and solutions for XRF, AA and ICP. The K1 single sample electric fluxer is a one-position affordable unit bringing safe an automated fusion to research labs where sample preparation is small to moderate. The K2 five sample electric fluxer is a five-position unit which is suitable for research labs processing multiple samples and in need of a high-throughput machine.Spex CertiPrep IncIssue: 19/06 RSN:

PerkinElmer has announced an improved S10 Autosampler, a computer-controlled, multi-purpose sampling system for AA, ICP-OES and ICP-MS. The autosampler automates standard and sample introduction for instrument calibration and sample analysis, extending the spectrometer's calibrations to those of a fully automated analytical workstation. New features include an advanced drive system with high-precision motors that move the sampling arm of the S10 in the X and Y coordinates simultaneously to minimise changeover time between samples, random-access programming for flexibility and more than 200 vessel positions.PerkinElmerIssue: 19/05 RSN:

PerkinElmer has announced that it has expanded its multi-vendor qualification and validation services for customers in heavily regulated environments. With the addition of a multi-vendor service for LC/MS, customers can have a single point of contact to help ensure that the laboratory's entire LC/MS system is running optimally, regardless of manufacturer. OneSource consolidates all lab qualification requirements under a single provider to improve equipment uptime and reduce costs. The latest offerings also include the addition of a strategic consulting partnership with renowned expert, Bob McDowall, and an expanded validation library to fortify the company's multi-vendor validation capabilities.PerkinElmerIssue: 19/05 RSN:

Quantitech have announced the publication of a new application note on the Determination of Mercury in Water by Cold Vapour Atomic Absorption Spectroscopy. Mercury is a highly mobile, toxic element, able to diffuse through air, soil and water. Fish have the ability to bio-accumulate mercury (in its methylated form) to 100,000 times the concentration of the water they inhabit and, as a result, mercury levels in the environment are of great concern. A recent directive proposed by the European Commission requires that all EU waters should achieve good status by 2015 and establishes a new regime for the prevention and control of chemical pollution of water. These new proposals set “environmental quality standards” which will help achieve the chemical aspects of the directive’s goal of “good ecological status” as they focus on 41 chemical substances that pose a particular risk to the aquatic environment and human health. The list of priority hazardous substances includes mercury and cadmium compounds, chlorinated paraffins, hexachlorobenzene, tributyl tin and penta-BDE. Many laboratories are charged with the task of monitoring mercury in effluent, waste, surface and groundwater and the new application note provides details information on how this analysis can be performed under the US EPA methodology 7479 and 245.1 and EN-1483 or EN-13806 with cold vapour atomic absorption spectroscopy using the Teledyne Leeman Labs Hydra AA.

QuantiTech Issue: 19/04 RSN: 083
Evans Analytical Group, provider of microanalytical surface analysis and materials characterisation services, has acquired Cascade Scientific, Shiva Technologies and Nano Science in the last two weeks of December. www.eaglabs.com
PerkinElmer has introduced the OneSource Laboratory Relocation service. This service is available globally and is designed to handle problems laboratories face when moving equipment from one location to another. www.perkinelmer.com