The Model 350 high-temperature gel permeation chromatography (HT-GPC) system is specifically designed for the characterization of polyolefins and other synthetic polymers that are soluble only at elevated temperatures. It provides absolute molecular weight without extrapolation or correction, as well as molecular size (Rg and Rh to less than 1 nm) and intrinsic viscosity. It also gives information on branching, structure and aggregation in a single GPC/SEC (size exclusion chromatography) experiment.

Series 4007B pressure sensors are designed for harsh environments where space is a consideration. They are available with measuring ranges of 0–5 bar and 0–20 bar absolute for use at temperatures from –40 to 200ºC. The sensors have a direct chip exposure (DCE) design, which does not require a diaphragm. A piezoresistive measuring element measures static and dynamic events with excellent dynamic response. The sensing element relies on an implanted resistive bridge on micro-machined silicon, which minimizes hysteresis and repeatability errors.

X-STREAM process gas analyzers now incorporate the manufacturer’s IntrinzX intrinsically linear photometric technology to provide high-sensitivity, large dynamic ranges, and long-term span stability. IntrinzX uses split-cell dual-beam photometry and constant comparison of the reference signal and the measurement signal to achieve an intrinsically linear response to changes in concentration. This enables sensitivity as low as 0–10 ppm, span drift of less than 0.5% per week, and dynamic ranges as large as 0–200 to 0–50,000 ppm.

The Exoscan is a portable, compact Fourier transform infrared (FTIR) spectrometer that weighs less than 7 lb and is controlled by a PDA. It is powered by either an on-board rechargeable lithium-ion battery or an AC power adapter. The spectrometer is designed for nondestructive onsite surface and bulk analysis applications, including sampling solids, pastes, gels and liquids. In addition to its external reflectance-sampling interface, it features a sampling system that can handle the analysis of large surfaces.

The PX35 Series industrial pressure transducers are highly accurate millivolt output units that can be configured for many applications in the chemical industry. Users can select gage, absolute or sealed models, as well as options that feature psi or metric ranges.

Using the COX 4080 extended-range flowmeter ensures that accurate measurements are taken. It tracks all relevant variables to compensate for viscosity and temperature variations that normally introduce errors. The unit is suitable for use with turbine flowmeters commonly employed in test and measurement applications. This flowmeter now comes with the FlowComp graphical user interface, which enables fluid selection, output configuration and data logging.

An addition to this vendor’s Smart Accessories, the novel near-infrared integrating sphere is designed for the analysis of diffuse reflection. Samples can be placed on top of the instrument, so that minimal sample preparation is required. The integrating sphere achieves highly accurate and fast diffuse-reflectance measurements of a wide range of powders and solids, including polymers, plastics, natural materials and incoming feed materials. These types of analyses are of primary interest to research and analytical services in the polymer industry as well as raw material manufacturers.

The SPECTRACAP oxygen transmitter OMT355 measures oxygen concentration optically by analyzing the absorption of light (generated by a tunable diode laser (TDL)), and associating that data to the wavelength characteristic of the oxygen molecule. A compact probe suitable for field use, the OMT355 can be flange-mounted directly into a process without sampling or sample conditioning equipment, providing the user with realtime measurement data without sample-switching delays.

The Sysmex FPIA-3000 automated particle shape and size analyzer now has the capability to measure particles suspended in nonaqueous solvents, as well as those in water-based materials. This is especially important in the pharmaceutical and chemical industries, where there is often a requirement to measure the shape and size of particles that are soluble in water. The Sysmex FPIA-3000 can now accommodate all common solvents, including acetone, methylethylketone, ethyl acetone, xylene and toluene.

The Micro-Lite LV2000 high-intensity dimmable LED ring light features a circular array of 12 surface-mount LEDs with optical lenses that produce bright, glare-free light. Its performance compares to that of a 150-W halogen light, but it costs much less to power and is Energy Star compliant. It is designed to fit all microscopes and is rated for up to 100,000-h service life. All LED controls are in its head, which has a 2.35-in. inner ring and an anti-glare white finish, and is attached with finger screws.