New Products Laboratory Fumehood
HEMCO Corp. (Independence, Mo.) offers the U.L. 1805 classified LE AireStream fumehood, which is available in widths of 3, 4, 5, 6 and 8’. The hood incorporates a unitized superstructure, with nonmetallic dual-wall construction for chemical resistance, strength and durability. An integral one-piece, smooth fume chamber has all coved corners. The VaraFlow
baffle system with vector airflow slots directs the air through the fume chamber and exhaust outlet with minimal turbulence and maximum airflow efficiency.
Additions to Solid-Core Column Series
CORTECS C8 and CORTECS Phenyl analytical columns from Waters (Milford, Mass.) are designed for scientists who need to expand their chromatographic separation space while maximizing the speed, resolution and sensitivity of their small-molecule HPLC, UHPLC or UPLC separations. Capable of
operating at very high column effi ciencies and low backpressures, the columns provide additional selectivity choices and allow researchers to develop methods quickly and generate more information with every analytical run. The CORTECS C8 and CORTECS Phenyl chemistries are available in two particle sizes, 1.6 and 2.7 μm, and are off ered in a total of 50 unique column confi gurations.
Nano-Size Capillary Tubing
Polymicro Technologies nano-capillary tubing from Molex, LLC (Lisle, Ill.) features internal diameters from 200 to 1000 nm (0.2–1.0 μm). Traditional capillary tubing products do not offer i.d.s smaller than 1 μm. Synthetic
fused silica offers smooth interior surfaces that allow stable flow of liquids and gases. The material’s low metal ion content provides an inert inner surface and facilitates efficient cleaving or cutting for custom tubing lengths. A polyimide coating on the tubing exterior offers effective abrasion resistance during handling and use and allows the tubing to be used in temperatures ranging from –65 ºC to +350 ºC.
AMERICAN LABORATORY Photometric Clinical Chemistry Analyzer
The compact, benchtop, semiautomated Golden Gate chemistry analyzer from Castle Medical (Smyrna, Ga.) can run 300 tests per hour and is used to analyze urine, saliva or blood serum samples. Continuous loading of new samples while in use, automatic redilution and
seamless access to statistics and reports are enabled by the analyzer software.
Small-Scale Crossfl ow Device use, the module has a filter area of 50 cm2
The single-use ultrafilter Sartocon Slice 50 crossflow filter device from Sartorius Stedim Biotech (Goettingen, Germany) is designed for use in biotechnology applications such as membrane screening and small-volume process development. Supplied encapsulated and ready-to- and a wide range of
molecular-weight cutoffs. The cGMP-validated self-contained unit eliminates the need for a compression holder and is available in a choice of two polymers: Hydrosart membrane, a stable polymer suitable for a broad pH range that can be depyrogenated using NaOH at elevated temperatures, and polyethersulfone membrane, a stable polymer that is well-suited for a broad pH and temperature range.
52 MAY 2016 Protein Sequencers
PPSQ-51A single-reactor and PPSQ-53A triple-reactor protein sequencers from Shimadzu Scientific Instruments (Columbia, Md.) employ the SPD-M30A photodiode array detector for higher sensitivity. The detector features a capillary cell that is 8.5 times longer than standard
cells, which increases sensitivity and enables the study of longer protein sequences. PPSQ series protein sequencers separate PTH-amino acids isocratically. Isocratic sequence analysis provides more stable retention times; thus, peaks detected in previous cycles can be cancelled using chromatogram subtraction, making it easier for users to identify the correct amino acid. Performing PTH-amino acid analysis in isocratic mode also enables laboratories to reduce liquid waste and running costs through mobile phase recycling.
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