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February 2004

 
 


February 2004 Table of Contents
Product Information

Featured Product: SFC Chiral Analysis
View more products below

SFC Chiral AnalysisThe Jasco SFC Chiral Analysis System is a fully integrated SFC system with a circular dichroism (CD) detector that is optimized for high-sensitivity analysis of chiral compounds. The system delivers supercritical fluids at low flow rates, which results in superior resolution in a wide range of applications. The elimination of organic solvents reduces cost and environmental exposure and the use of supercritical fluids enables faster and cleaner sample recovery.

The SFC Chiral Analysis System is comprised of integrated components of Jasco’s modular LC-2000 HPLC system with the addition of an SFC/SFE CO2 pump and patented back-pressure regulator. The system features Jasco’s circular dichroism detector, which provides unmatched sensitivity and stability for chiral analysis. The CD detector can simultaneously determine both CD and UV absorption of the sample in the same cell for the direct determination of optical purity.

For more information on the SFC Chiral Analysis System, call 800-333-5272; fax 410-822-7526; or e-mail inbox@jascoinc.com.

Jasco - www.jascoinc.com


Moisture Analyzers.Featuring super-hybrid sensor technology, the MF-50 and MX-50 models are equipped with a 400-W halogen lamp with a secondary radiation assist that provides quick measurements. The analyzers automatically stop the analysis once the desired drying rate is achieved and have three types of condenser operation modes to accommodate various detection needs. The units also include five display modes and a high-density vacuum fluorescent display for easy reading.
Paul N. Gardner Co. - www.gardco.com

Synthesis AnalyzerSynthesis Analyzer.The Investigator system features in situ spectroscopic analysis that allows chemists to analyze samples in real time in the original reaction vessel. This novel system incorporates Raman spectrometry and is designed to reduce fluorescence and background interference and work with the Discover system.
CEM Corp. - www.cem.com

Rotary Evaporator.The Büchi Industrial Rotavapor Model R-220 provides rapid and efficient evaporation of sample volumes from 6 to 20 L and more. Eight glassware assemblies are available and are designed for quick setup and easy cleaning. The unit requires no tools and can provide one-handed operation and secure handling of the evaporating flask.
Brinkmann - www.brinkmann.com

CentrifugeCentrifuges. The Allegra X-12 Series benchtop centrifuges spin up to 4 x 750 mL and feature new adapters that enable direct centrifugation of cell culture flasks. By eliminating the transfer step to and from conical tubes for cell concentration, these exclusive adapters save time and expense and reduce the potential for contamination. The X-12 Series incorporates ARIES Smart Balance rotor technology, which automatically corrects imbalance (up to 50 g in opposing loads) and continues the run without shutdown.
Beckman Coulter - www.beckmancoulter.com


Pulse Discharge DetectorPulse Discharge Detector.The helium ionization detector is a nonradioactive, nondestructive device that extends the detector capabilities of gas chromatographs by simply replacing existing manufacturer-installed detectors. With no hydrogen or open flame requirements and close-to-true-mass response, the pulsed discharge detector is suitable for use in petrochemical environments.
Valco Instruments Co., Inc. - www.vici.com

Air Generators.Expensive and hazardous cylinders of zero grade air used to supply oxidizing gas to GC instruments can now be eliminated by Parker Balston High Output UHP Zero Grade Air Generators. Seven models are available, boasting features such as ergonomic cabinets, state-of-the-art catalyst modules, and status displays. The units can achieve gas purity with less than 0.05-ppm hydrocarbon content (measured as methane) and produce up to 140 lpm of hydrocarbon-free air.
Parker Hannifin - www.parker.com

AnalyzerAnalyzer. The AMA254 advanced mercury analyzer determines mercury in coal, combustion residues, and soils, meeting or exceeding the highest standards of quality for detecting harmful impurities. The unit analyzes samples to comply with U.S. EPA Method 7343, Mercury in Solids and Solutions by Thermal Decomposition, Amalgamation, and Atomic Absorption Spectrophotometry, and ASTM Method D-6722, Test Method for Total Mercury in Coal and Coal Combustion Residues by Direct Combustion Analysis.
LECO Corp. - www.leco.com

Recirculator.The PolyScience Model 3370, boasting 13,640 BTU cooling capacity at 20 °C (68 °F), removes heat loads from sensitive equipment and processes such as FTIR, GC-MS, ICP, and more. The recirculator uses a positive displacement pump to circulate fluid at up to 5.6 lpm (1.5 gpm) and cools the fluid using a fan-cooled radiator. The unit is economical, extremely compact, and designed for long life and easy maintenance.
PolyScience - www.polyscience.com

ColumnsColumns. The NUCLEODUR C18 Pyramid is a hydrophilic (polar) end-capped C18 phase for use in mobile phase systems of up to 100% water. Retention times for these columns are nearly unchanged between initial injection and restart after the flow has been stopped for 12 h, and even strong basic analytes are eluted with symmetric peak shapes. The NUCLEODUR C18 Pyramid is LC-MS compatible.
Macherey-Nagel - www.mn-net.com

Camera System.The Lovibond CAM-System 500 quantifies surface color and visual appearance, replicating human perception of products. Its digital image processing techniques provide relative, quantitative measurement data, which allows the user to quickly decide whether a product meets acceptable color and appearance criteria or if it has undesirable defects. It is particularly well suited to measuring natural products with nonuniform color as it includes color distribution within a sample and measurements are not affected by surface texture.
Wilkens-Anderson - www.waco-lab-supply.com

Filter PlatesFilter Plates.The one-piece design of MultiScreenHTS filter plates, specifically developed for use with automated workstations, features rigid side walls for robotic gripper arms, providing ample surface to accommodate bar code labels. In addition, a removable underdrain allows easy membrane access. The high-throughput plates are optimized for general sample preparation, ELISpot, whole organism visualization, and radioisotope detection applications. MultiScreenHTS filter plates are available in a range of plastics and membranes.
Millipore - www.millipore.com

Furnaces.Versatile Lindberg/Blue M LGO Series box furnaces offer temperatures from 100 to 1200 °C and chamber capacities of either 0.6 cu. ft. (17.0 L) with a vertical lift door or 2.0 cu. ft. (56.6 L) with a horizontal side-hinge door. Patented LGO (Light Gauge Overbend) heating elements embedded in “Moldatherm” insulation deliver maximum radiant heat energy to the process load; these furnaces are available with advanced single setpoint or programmable PID microprocessor controllers.
Kendro Laboratory Products - www.kendro.com

Tube FurnacesTube Furnaces.The GTF line of tube furnaces, which operate to 1200 °C, are available in 6 heated lengths from 18 to 48 in., in both horizontal and vertical designs and with either single-zone or three-zone control. Three-zone units provide linear temperature uniformity throughout the chamber. These furnaces have interchangeable tube adapters that provide fixturing of different tubes up to 6 in. in diameter.
Carbolite - www.carbolite.com

Sealing Kit.The 500-µL WebSeal Kit consists of a 96-well, mid-depth polypropylene Microtiter plate that is preinserted with 500-µL glass vials and includes the WebSeal silicon/PTFE sealing mat. The mat provides for easy sealing of all 96 wells to eliminate cross-contamination of the samples. A cutting tool is provided that allows individual tubes to be removed from the rack without breaking the seal. The sealing mats are available solid or preslit for easy penetration, and they are dry-heat-autoclavable.
Sun-Sri - www.sun-sri.com

Sample Processors.The model 814 Metrohm USB sample processor is ideal for analyzing small to medium numbers of samples, while the model 815 robotic sample processor XL can handle more samples. Applications for these processors include full automation of direct-inject Karl Fischer, potentiometric titrations, and environmental samples.
Brinkmann - www.brinkmann.com

Light MeterLight Meter.The Traceable model keychain light meter reads from 0.01 to 99,000 lux and 0.001 to 9999 foot-candles, with accuracy of ±3% plus 10 digits. Functions are on/off, hold (freezes the display reading), lux/foot-candles, and range (automatic or manual). With the touch of a button, the meter automatically zeroes itself for total darkness. A photodiode and color-correction filter provide accurate cosine- and color-corrected measurements.
Control Co. - www.control3.com

Spectrometer.The Titration Kinetic Analyzer is a high-resolution spectrometer for titration measurements and analysis of chemical reaction kinetics in small (~40 µL) volumes. For drug screening and measuring binding constants, microstructural and molecular processes can be measured when concentrations of selected compounds are changed. Related software features task-oriented steps and extended data analysis capabilities.
Ultrasonic-Scientific Ltd. - www.ultrasonic-scientific.com

Bath Liquids.Three lines of Lauda bath liquids are available for temperatures ranging from 85 to 350 °C. Kryo, Therm, and Ultra are durable and reliable for use in any circulator or bath when use of water is not an option. They offer simple and safe handling and temperature control.
Brinkmann - www.brinkmann.com

Capillary Columns.The improved upper temperature limits of ValcoBond columns enhance column “bake-out”, reducing sample carryover and cycle times. Proprietary liquid-phase processing produces low bleed characteristics while maintaining identical retention characteristics to the phases. Automated deactivation, coating, curing, bonding, and crosslinking produce MS-certified bleed characteristics.
Valco Instruments Co. Inc. - www.vici.com

CirculatorsCirculators. The Economy, TopTech, and HighTech series of circulators offer functions such as an early warning system for low liquid level, bright clear displays (VFD Comfort Display), electronically adjustable pump capacity (PPC), automatic 3-point temperature calibration (ATC3), and Temperature Control Features (TCF). The pump capacities have also been increased: the TopTech series has an improved 450-mbar and 11–16 L/min pump; and the HighTech series pump is capable of 1.1 bar and 22–26 L/min.
Julabo USA - www.julabo.com

GC System.The S-PRO 3200 series for analysis of sulfur compounds in both gaseous and liquefied petroleum gases is a pulsed flame photometric detector (PFPD)-based system that can generate its own S-standards using an integrated permeation tube oven. The oven system provides NIST traceable, multiple low-level standards for calibration or QC check samples.
O. I. Analytical - www.oico.com

Reaction Processing System.The SFT-250 system performs reactions in supercritical fluid media and may be used for small-scale pilot processing. The instrument’s high-pressure stainless steel vessel runs reactions at pressures up to 10,000 psi and accommodates vessel sizes up to 4 L. The reaction vessel has several ports for introduction of reagents, reactive intermediates, or solvents. Mixing is accomplished by a magnetically coupled impeller.
Supercritical Fluid Technologies - www.supercriticalfluids.com

Sample Concentrator.The SPE Dry 96 system evaporates microplate samples by delivering heated gas above and below each well. The system evaporates samples quickly and maintains an accurate temperature at user-selected settings. The SPE Dry 96 will not exceed selected temperatures, thus preventing degradation of temperature-sensitive compounds. Designed to meet the needs of high-throughput laboratories, the system adapts easily to 24-, 48-, 96- and 384-well microplate formats.
Argonaut Technologies - www.argotech.com

Mass Comparators.The AX206 and AX2005 models offer touchscreen operation in the measuring of weights or samples up to 200 g with 1-µg resolution, as well as 2 kg with 10-µg resolution. These instruments’ touchscreens enable the setting of specific weighing parameters and a guided process for manual mass comparison procedures. Additional features include a hanging weigh pan, separate electronics, and below-the-balance weighing.
Mettler-Toledo - www.mt.com

Immersion ProbesImmersion Probes.Fiber Optic Immersion Probes are designed for dissolution analysis, process control, low temperatures, and other applications. Removable tip designs or fixed paths are available with different diameter measuring heads. These probes also feature unusually high light throughput.
Hellma - www.hellmausa.com

Mass Flow Sensors.The Model 50 series of gas meters, available in either stainless steel or aluminum construction, measure flow ranges as low as 0–20 sccm. With better than ±1.5% linearity (full scale) and 0.5% repeatability (full scale), these meters can be calibrated for several standard gases at no additional charge. All units with displays include NIST-traceable calibration certificates.
McMillan Co. - www.mcmflow.com

DetectorsDetectors. The VUV-12 fixed-wavelength and the VUV-22 variable-wavelength detectors for capillary electrophoresis and capillary chromatography can be fitted with CE/CEC flowcells for high sensitivity detection. The capillary flow cell provides “on column” detection using 350- to 500-µm columns. The CEC and microHPLC flow cell features a 1-mm path length with 0.2-µL illuminated volume. The flow cell features a nonmetallic body for biocompatibility and has a pressure rating of 1000 psi and higher for certain configurations. Either one is available with the VUV-12 or 22.
JMST Systems - www.hyperquan.com

Ion Analyzer.Incorporating flow injection analysis, the QuikChem 8500 features high sample throughput coupled with simple and rapid method changeover to maximize productivity in determining ionic species in a diversity of sample matrices, from sub-ppb to percent concentrations. With more than 400 methods for environmental, agronomic, and industrial applications, plus various accessories, the instrument offers diverse capabilities.
Lachat Instruments - www.lachatinstruments.com



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