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Microplate SPE MultiProbe is an automated SPE system for high-throughput bioanalytical LC/MS/MS. Extraction systems consisting of various manifolds and SPE blocks in a 96-well format can be mounted directly on the deck of the MultiProbe. The system's software automates all liquid handling and vacuum steps. Packard 412
measures combustion gases, including inert gases, hydrogen sulfide, Cx-C2 hydrocarbons, sulfur dioxide, and water. Analytical Controls B414 SPE The VacMaster sample-processing station for SPE is available in 10- or 20-sample versions and has an adjustable rack system and a PTFE lid. It features a two-position vacuum outlet that allows the user to either remove waste fluids from the tank or retain them for sterilization and disposal. Jones Chromatography 415
Process monitoring Spectrophotometric in-line monitors use UV-vis/near-IR absorption and scattered light to provide real-time evaluation of process liquid composition. Applications includefiltrationand separation, crystallization detection and control, measurement of solids and slurry concentration, and determination of trace organics in heating or cooling media streams. FT-IR The G Series FT-IR gas-analysis system can Optek-Danulat 4 1 8 be configured as a modular system for use with other MIDAC open-path air-monitorX-ray fluorescence ing systems, as a stand-alone gas cell sysThe LZ00, based on the reengineered tem or as an optimized sample compartLab-X 3000, measures sulfur at 5 ppm by ment gas cell system. The G Series is deenergy-dispersive X-ray fluorescence in signedtomeasure individual gases or petroleum products, including diesel fuel mixtures at part-per-billion sensitivity. The and gasoline. The optional autosampler interferometer is a plane mirror Michelson features a 12-position removable sample design with dual mechanical bearings. Spec- tray. Oxford 4 1 9
INSTRUMENTATION PAD The Pulsed Amperometric Detector is designed for high-sensitivity applications and includes Windows software for data acquisition/reporting, detector control, and ternary gradient pump control. It features an interface for up to four other detector channels and a 100-MHz Pentium PC.BAS 4 1 3 Gas analyzers Refinery gas analyzers are designed to be used with the HP 6890 series of gas chromatographs and can be configured to interface with the lab data system, the HP ChemStation, or the HP 3396 Integrator. The Refinery Gas Analyzer measures 22 components typically found in refinery process streams, including inert gases, hydrogen sulfide, C^Cg hydrocarbons, and C2-C4 olefins. The Flue Gas Analyzer 688 A
tral range is 4000-400 cm-1, and a near-IR option provides a range of 10,000-1600 cm"1. Pathlengths are permanently aligned or adjustable and range from 0.4 to 100 M. MIDAC 4 1 7
FT-near-IR The IdentiCheck FT-Near-IR system, which covers the first and second overtone regions, is available in two configurations to match the specific operational needs of the laboratory. The Spectrum system offers comprehensive, validated, and customizable PCcontrolled operation, whereas the Paragon system is fully expandable to PC control if desired. Options include a reflectance accessory that allows users to directly analyze powders and tablets in their containers and a fiber-optic remote sampling interface for liquids and solids that can be installed simultaneously with the standard transmission and reflectance systems. Perkin Elmer 4 1 6
Analytical Chemistry News & Features, November 1, 1996
Mid-IR fiber-optic probes Fiber-optic probes that transmit in the 4000-900 cm-1 range allow remote realtime analysis of liquids, sheet materials, microsamples, and reflective solids. The probes feature small heads, allowing them to be used with small samples and in vessels with restricted access. Probes can be used with instruments that have a dTGS-MCT detector. All accessories connect to the spectrometer through the FiberLink interface. Spectra-Tech 420 Spectrometer upgrades Upgrade kits for the SpectrAA-250 Sample Introduction Pump System can calibrate the spectrometer with one standard and provide on-line dilution of concentrated samples. The 250-to-200 upgrade kit replaces the standard software with a Windows-based user interface featuring a spreadsheet format designed for multiple users. The 250-to-600 upgrade kit adds the multitasking capabilities of the OS/2based SpectrAA-600/800 interface that allows Windows and DOS-based applications to be run simultaneously with native OS/2 applications. Varian 421
LITERATURE Renovation guide Designed to help lab owners and facility managers develop awareness of the many variables involved in renovation projects, the "Lab Renovation Guide" discusses conceptualization, planning, procurement, and installation. A list of predesign considerations, such as usage patterns and ADA
requirements, is also included. 12 pp. Fisher Hamilton 422 GC of volatiles Application note No. 5965-0978E, "Multiple Headspace Extraction-Capillary Gas Chromatography for the Quantitative Determination of Volatiles in Solid Matrices", describes the quantitative five-step extraction of volatile components in solids by GC. A discussion of multiple-headspace extraction techniques and a calculation example are included. 10 pp. Hewlett 423 Packard LC/MS of proteins "Protein Digest Analysis Using a Nanobore HPLC-Nanoflow Electrospray Interface", application note No. 223, describes the use of the Nanoflow ES interface and a 50-um C18 packed capillary column for separating and analyzing femtomole levels of peptides and glycopeptides resulting from a tryptic digest of the glycoprotein bovine fetuin. 8 pp. Micromass 424
Diffraction gratings The Diffraction Grating Handbook covers the history of grating development, the physics of diffraction gratings, ruled gratings and ruling engines, interference (holographic) gratings, the imaging properties of grating systems, the efficiency characteristics of gratings, planeand concave-grating mounts, and the including anaerobic, micro, water-jackselection of dispersive systems. 70 pp. eted, and dye laser; and accessories such Spectronic Instruments as cell washers and mixers. NSG Precision Cells 427 425 CATALOGS
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Scintillation and luminescence counter The MicroBeta TriLux liquid scintillation and luminescence counter is available with 16- or 32-microplate capacity or as a convertible robot-loading platform. The TriLux can count samples in clear or opaque plates, in 96- or 24-well formats, filtermats, microcentrifuge tubes, or 4-mL vials, and is available in 1-, 2-, 3-, 6-, or 12-detector models. The user has a choice of Mac, DOS, or Windows operating software. Wallac 426
Spectrophotometer cells The 1996 Spectrophotometer Cell Catalog lists more than 300 types of cells, most available in a choice of optical glass, UV quartz, IR quartz, or ES quartz. Also included are standard cells; special cells,
Sphere systems The 1996-97 Sphere Systems and Instrumentation catalog features luminanceradiance standards; uniform calibration sources; integrating spheres; sphere controls; light sources; detectors; and systems for measuring lamps, LED and laser power, and reflectance-transmittance. Labsphere 428
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