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Jumbo Size Sample Preparation for New
E.Coli Testing Protocols Seward Ltd, manufacturer and developer of the world leading, patented Stomacher®
Paddle Blender range, announces a highly successful year for sales of its Stomacher®
3500 large volume sample preparation systems. This follows recent changes to USDA Escherichia coli 0157:H7 testing protocols, where an expanded description of how its Food Safety & Inspection Service (FSIS) confirms and reports on this virulent food pathogen was published.
All meat products consumed (whether locally produced or exported) within the US must have undergone the recently renewed FSIS
E.coli 0157:H7 testing protocols. Within these, the volume of sample and diluents has been increased to 125g of food sample in 1.25L broth to maximise the opportunity for pathogen detection. Detailed within the revised Laboratory Guidebook chapter on ‘Detection, Isolation and Identification of Escherichia coli O157:H7 from Meat Products’, a Stomacher 3500 is used for the sample preparation of varying quantities and types of meat sample. The Stomacher 3500 range, including Stomacher bags, is available specifically for large volume (400ml to 3.5L) blending and extraction, where all the washing solution or solvent is required to be retained for microbiological analysis. “The Stomacher 3500 is unrivalled in the market of large volume sample blending and extraction, making it ideal for routine sample preparation of a variety of products for microbiological testing,” said Stuart Ray, Technical Director, Seward. “This is due to its quality, robust components which make it extremely durable, even when processing the largest and toughest of samples. In fact we have examples of these large systems still going strong after 20 years of hard service in many industrial settings.”
Circle no. 391
Latest Innovation in High-Throughput Tissue Processing
Thermo Fisher Scientific, Inc has introduced the Thermo Scientific STP 420ES Tissue Processor for high-throughput tissue processing. This new tissue processor enables faster turnaround times for same-day diagnosis and leaner workflows through operational flexibility. Using a dual chamber design, which features unique rotational agitation that increases flow of traditional reagents by seven-fold to reduce processing times, the STP 420ES can process up to 420 cassettes per run. Holding 360 and 60 cassettes in the first and second chambers respectively, the second chamber allows independent processing of STAT samples, as well as special or difficult tissues, without disrupting routine workflow or requiring the use of a second instrument.
By performing multiple runs per day and two protocols simultaneously, a laboratory using the STP 420ES can benefit from increased processing capacity and superior agitation with no additional capital expenditure. Furthermore, when used in combination with the Thermo Scientific Fast Flex range of reagents, the new tissue processor can cost-effectively halve traditional processing times to only 4.4 hours for 5mm specimens and under one hour for biopsies. This is all done while continuing to provide the highest-quality results.
Compared to other tissue processors, the STP 420ES offers higher performance with the flexibility to increase or decrease processing speeds as desired, leaving the laboratory and its staff in complete control of its workflow. Additionally, the control and monitoring of both chambers is provided simply via a single touch-screen user interface.
Circle no. 392 ADVERTORIAL Improve your Workflow with Multivapor™ BÜCHI Labortechnik AG, known as a market leader in rotary evaporation, breaks new ground in multiple sample processing.
The Multivapor™ is a compact instrument for the parallel evaporation of up to 12 samples simultaneously. It has been specially designed to operate either as a stand-alone instrument, or in combination with an existing Rotavapor®
.
This synergistic and compact design saves space in the lab and is designed to fit into specific process workflows where the evaporation of multiple samples is considered a bottleneck. The Multivapor heats and agitates up to 12 samples in individual cylindrical transparent water bath. A flexible sealing system with a range of specific adapters allows the system to be used with a broad range of common glassware – including Carousel tubes, microwave vials, and SpeedExtractor tubes - rendering the time-consuming sample transfer steps obsolete. Bumping is prevented by inducting a vigorous vortex in the sample by means of the orbital agitation and guarantee a fast and safe parallel evaporation without the risk of cross-contamination. This feature makes the Multivapor the ideal way to work up samples quickly, easily and safely!
Equipped with the sophisticated vacuum controller V-855 and the vacuum pump V-700 parallel evaporation is a cinch. This technique is in accordance with the regulations of ISO 14000 which require most environmental health processes as possible.
For further information please contact our homepage at
www.buchi.com or a local sales representative. Circle no. 393
Multivapor
BÜCHI Labortechnik AG CH-9230 Flawil/Switzerland T +41 71 394 63 63
www.buchi.com
™
Explore new ways in parallel evaporation with the Multivapor P-6 or P-12 and evaporate your sample in a fast and efficient way without changing your glassware. � �
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Quality in your hands Circle no. 394
LAB ASIA - JULY/AUGUST - LABORATORY PRODUCTS
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