Environmental Analysis
First Trace Gas Analyser to Simultaneously Measure CO, CO2, and H2O in Real-Time The new G1302 trace gas analyser from Picarro (USA) is the first turnkey instrument capable of simultaneously measuring CO and CO2
with high precision, in real-
time, and with minimal calibration required. This makes it suitable for remotely operated (unattended) GHG monitoring applications, including tall-tower measurements as well as for research and reference laboratory use, providing both superior performance and lower overall costs than previous technologies. In particular, the G1302 delivers measurement precision down to 2 ppbv for CO, 50 ppbv for CO2 down spectroscopy (WS-CRDS) technology, this new analyser also provides quantitative data on H2
In field CO2 monitoring applications, CO is commonly used as an anthropogenic CO2 emission indicator as well as a method to co-identify CO and CO2
. Based on Picarro’s proven wavelength-scanned cavity ring O concentration levels.
plumes
of incendiary origin, as opposed to natural origin from soils, etc. Unfortunately, traditional technologies require frequent calibration and maintenance, as well as the use of a different analyser for each gas species. Because the Picarro G1302 analyser is based on WS-CRDS technology, crosstalk between the detected species and other atmospheric gas constituents is avoided, allowing this new analyzer to simultaneously monitor multiple species, with superior precision than older single-gas methods.
Mike Woelk, CEO of Picarro, adds, “Our company is committed to supporting air and atmospheric monitoring applications with trace gas analysers that deliver superior performance and simplicity of use. But we also recognise that the diverse needs of some of these applications must be supported with analysers optimised for their specific requirements. Our new G1302 analyser is a perfect example of this philosophy, targeting the scientists who need to simultaneously monitor a particular combination of target gases – CO, CO2
and H2 no single solution to match this need.” Reader Reply Card no 203
New Mixer Improves Comfort and Convenience in the Laboratory
New Kits Simplify Food Sample Preparation for Pesticide Analysis
Agilent Technologies (USA) today introduced SampliQ QuEChERS kits that simplify sample preparation for analyzing pesticide residues in fruits, vegetables and processed food products.
"QuEChERS," developed by USDA scientists in 2003, stands for "Quick, Easy, Cheap, Effective, Rugged and Safe." Agilent's SampliQ QuEChERS Kits make these methods even faster and easier with premeasured reagents designed for specific food sample types and screening protocols. These include extraction kits and dispersive solid phase extraction (SPE) clean-up kits. Agilent provides kits for the original non-buffered QuEChERS method, European standard (EN 15662) method and a standard recognized by the Association of Analytical Communities (AOAC 2007.01).
Velp Scientifica (Italy) introduces the Vortex WX with orbital movement that doesn’t need any pressure to maintain vibration. Thanks to the revolutionary “Sensor” mode, an infrared system (IR) detects the presence of the test-tube and the instrument automatically starts vibrating
The Vortex WX has adjustable vibration frequency and can reach up to 3000 rpm, according to need. The Vortex WX features a low profile and ergonomic design for increased lab bench stability.
Reader Reply Card no 204
Unlike the alternatives, Agilent SampliQ QuEChERS extraction kits, used in the protocol's first step, contain pre-weighed salts in anhydrous packets. Users can now add the salts after adding organic solvent to the sample, avoiding exothermic reactions that might compromise analyte recovery. There is one extraction kit each for AOAC and EN methods, two for non-buffered extraction and one for acrylamide analysis.
Agilent currently offers 16 dispersive SPE kits for specific sample types and for the various QuEChERS methods. For both the AOAC and EN methods, Agilent offers kits for: general fruits and vegetables, fruits and vegetables with fats and waxes, and pigmented fruits and vegetables. There are also two kits for highly pigmented fruits and vegetables using the EN method, and two kits for the AOAC method for fruits and vegetables with pigments and fats.
Reader Reply Card no 205 Pressurised Solvent Extraction Taken to a New Dimension
The main focus of modern analytical laboratories is minimising the time that elapses between sample analysis and result generation. With the help of modern extraction techniques, the time required for solvent extraction was reduced from several hours to approximately 30 minutes. Nevertheless, the extraction process can be very time consuming and a considerable amount of time and effort is required for sample preparation and method or schedule programming. Thanks to the unique design of Büchi’s (Switzerland) new SpeedExtractor, pressurised solvent extraction is taken to a new dimension.
Today, extraction under elevated pressure and temperature conditions has been established in environmental, pharmaceutical, food and feed, and consumer products analysis and has gained U.S. EPA approval. The advantages offered by this method are impressive: Due to higher analyte solubility and improved penetration of the sample matrix, analytes diffuse from the matrix to the extracting agent more quickly. The elevated pressure ensures that the solvent remains in a liquid state and that the extraction cell is quickly filled with fresh solvent.
While the actual extraction process has been optimised, with sequential processing, a considerable amount of time is spent on programming and sample preparation. Büchi's new pressurised solvent extractor, SpeedExtractor, eliminates exactly this weak point. With SpeedExtractor, samples are no longer extracted one after another - up to six samples can be run in parallel! This allows for incoming batches to be processed immediately. As a result, the analysis can be generated much quicker. For example, a batch of six samples can be extracted in 20 to 40 minutes. Even when allowing for extensive purification and evaporation steps, the result is available after half a day, or a day, at the latest. This is a tremendous advantage for the production line that is waiting for the analysis results!
When not only the time that elapses until the result is generated but rather the throughput is of importance, SpeedExtractor opens new dimensions. SpeedExtractor delivers a throughput of up to six times that achieved when using the conventional sequential format. Previously, it was possible to process 16 samples in eight hours – now, sample throughput can be increased to 96.
SpeedExtractor also distinguishes itself through its high degree of user-friendliness. One advantage is that extraction cells are automatically sealed. In addition to a significant time savings, this also provides a high degree of safety as it eliminates handling errors. Furthermore, extraction cells are preserved and reproducibility is ensured. Its parallel format also significantly simplifies the programming process: the desired method is loaded, the six samples are automatically sealed, and, at the push of a button, the extraction can be started.
The SpeedExtractor’s flexibility is unique as well: Temperature range of 50 - 200°C, pressure range of 50 – 150 bar, extraction cell size of 10 – 120ml, 60ml, 220ml, and 240ml collection vessels, and an integrated rinsing step into a separate waste container. A large selection of process parameters allows for a new standard in the number of supported applications.
Reader Reply Card no 206
New Handheld XRF Analyzer with Large Area Drift Detector
Thermo Fisher Scientific (USA) introduce Thermo Scientific Niton XL3t Series with geometrically optimized large area drift detector (GOLDD™) technology. The Niton analyzer’s groundbreaking GOLDD technology delivers improve- ments in light element detection, overall sensitivity and measurement times – as much as 10 times faster than conventional Si-PIN detectors, and up to three times more precise than conventional smaller, silicon drift detectors.
Thermo Fisher Scientific was able to surpass the performance of conventional Si-PIN and SDD detectors by combining the award-winning Niton XL3t’s 50kV, 2-watt X-ray tube, closely optimized geometry and patented signal processing hardware and software. When combined with the company’s proprietary large area drift detector, it creates GOLDD tech- nology, delivering superior performance in the form of faster analysis and lower detection limits. Furthermore, this innova- tion allows light element detection of magnesium, aluminum, silicon, phos- phorus and sulphur without helium or vacuum purging, a significant productivity and user benefit.
“The Niton XL3t with GOLDD technology brings true lab-quality performance to a handheld XRF analy- zer,” said Bob Wopperer, director of business development for portable analyzer products within Thermo Fisher Scientific. “The product is easy to use, delivers fast analysis, is extremely accu- rate, and can measure light elements without helium or vacuum assistance. These features make it the ideal, multi- purpose tool for analyzing metal alloys, carrying out mining exploration and mapping, detecting soil contaminants, or screening toys, electronics and other consumer goods for prohibited substances.”
For example, the Niton XL3t GOLDD is the definitive tool for scrap metal recyc- ling, making it easier to sort aluminum, titanium and bronze alloys, as well as achieving superior performance for tramp and trace element analysis. And in mining exploration, the instrument’s low detec- tion limits are designed to allow geologists to identify anomalies at or below the averages naturally found in the earth’s crust, something previously not possible with handheld XRF.
Reader Reply Card no 207 O – where there was previously
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Annual Buyers Guide 2009
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