48 Measurement and Testing The Most Advanced GPC/SEC Instrument for Polyolefin Analysis
Polymer Char (Spain) launches its new High Temperature GPC instrument. The GPC-IR is specially designed to polyolefin analysis and provides its users with an advanced modular design, an improved detection stability and full automation of the analytical process.
The GPC-IR fully automated operation process eliminates the need of solvent handling. The instrument takes care of the filling of the vials, sample dissolution, in-line filtering and injection process. There is no need at all of vials transfer at high temperature.
The GPC-IR main body consists of a columns oven compartment, with a 0.01ºC control up to 220ºC, where the GPC columns are placed and isolated from the rest of the hardware; and on top of it, the separate Injector-Detectors Oven compartment, where Injection and filtration valves and detectors are installed.
The autosampler’s capability is 70 samples, with a heated zone for sample dissolution. Each sample vial stays at the heated compartment (up to 250ºC) only for selected dissolution time. This capability combined with a gentle shaking avoids the thermal and shear degradation in the samples.
Viscometer, Light Scattering (DAWN® the analysis of very low levels of branching.
GPC-IR Virtual Instrumentation Software provides instrument control and process monitoring. The new and comprehensive GPC One calculation and reporting software platform integrates all detector signals in a single package. Also SQC (Statistical Quality Control) tools are incorporated into the software, to help tracking the status of the instrument.
Reader Reply Card No 161 High Temperature Viscosity Analysis for Heavy Oil Extraction Research
Cambridge Viscosity (USA) recently delivered a customised Viscolab PVT High Temperature viscometer for analysing heavy oil samples to a second major European oil company. The international energy company has decades of experience in oil and gas extraction in the North Sea and in countries around the world. The research and development team purchased the high temperature viscometer to explore extraction methods for heavy oils in tar sands located near Calgary in Alberta, Canada. The company is currently using the steam-assisted gravity drainage method (SAGD) to remove heavy viscous bitumen from oil sands. The viscometer will be used to improve the current method and develop new techniques for locations where the environment and geography make standard approaches impractical.
Developing the high temperature version of the Viscolab PVT presented many unique challenges for Cambridge Viscosity engineers. The customer required that the viscometer operate at temperatures up to 300°C and pressures of 20,000PSI. These requirements necessitated a redesign of the SPL-440 sensor’s internal electrical components, inlet and outlet tubes and the viscometer’s isothermal control system.
Dan Airey, director of engineering who oversaw the system redesign, addressed the challenges. “We had a number of problems to work out in order to deliver a system that could produce accurate and repeatable data under extreme conditions. The pressure and temperature combination required new components from the latest ceramics technology to advanced metal alloys. It was a significant effort, but I am very proud of the new design and the results the system provides.”
Reader Reply Card No 162
The instrument can be configured as a quadruple detector system with: Infrared detector IR4 (with concentration and composition sensors), HELEOS™ II of Wyatt Technology) and, optionally the high sensitive IR5 with a Mercury Cadmium Telluride infrared detector can be added for
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A2 Technologies, LLC _____________38 Accustandard, Inc ________________10 Analytical Flow Products___________12 Automation Products, Inc__________20 Bruker AXS GmbH ______________OFC Bruker Optics Inc ________________40 BW Technologies by Honeywell ______3 CEM 2011 _____________________IBC Detector Electronics Corporation ___31 East Hills Instruments _____________39 Flexim GmbH____________________35 FLIR Systems, Inc _________________28 GE Analytical Instruments _________37 Gecil Process ____________________18 Grabner Instruments Meßtechnik Nfg. Gesellschaft mbH & Co KG _________7 GR Scientific Ltd _________________12 Honeywell Analytics _______________5
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Horiba Scientific _________________13 ITT Analytics - SI Analytics _________14 Jeol (Europe) BV _________________15 Koehler Instrument Company, Inc___14 L-K Industries, Inc ________________18 MCerts 2011_________________44, 45 OI Analytical_____________________25 PerkinElmer, Inc __________________11 Petro-Online_____________________43 Petrotest®
Instruments
GmbH & Co KG__________________20 Restek Corporation _____________OBC Rigaku Americas Corporation ______21 Sensit Technologies_______________29 SRA Instruments SpA _____________36 Teledyne Leeman Labs ____________19 Wilks Enterprise, Inc _______________6 X-Ray Optical Systems, Inc ________IFC Yokogawa Europe BV_____________33
February / March 2011 •
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White Paper covering Emulsion-Breaking Techniques for Accurate Oil in Water Measurements
White Paper entitled, “Emulsion-Breaking Techniques to Ensure Accurate Oil in Water Measurements,” was recently published by Wilks Enterprise, Inc. (USA) Certain water samples, such as those containing detergent, may form an emulsion when oil in water extraction into a solvent is done. In order to ensure an accurate measurement, the emulsion must be reduced.
The White Paper discusses 6 emulsion-breaking techniques that can be used for reducing an emulsion in order to obtain valid oil in water measurements -- whether the analysis is done by infrared, gravimetric or UV techniques. All of the emulsion-breaking methods discussed in the paper are usable with portable infrared analysers, such as the Wilks InfraCal TOG/TPH Analysers, and for virtually any type of oil in water measurements, including fat, oil and grease (FOG) wastewater discharges.
Reader Reply Card No 163 Do you receive your own copy of
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