Analytical Instrumentation 17
Measuring High Viscosity is a Breeze
High Performance Solvent Evaporators Offer Flexibility
HT Series II Solvent Evaporators from Genevac (UK) offer leading edge features that provide superior sample protection, flexibility for multiple applications, consistency of results, robust build quality, ease-of-use, rapid high-throughput results and low maintenance. A new pdf brochure provides detailed information for all current products ranging from the compact HT-4X that sets the standard for bench-top solvent evaporation to the HT-8, HT-12 and HT-24, the pinnacle of very high throughput evaporator technology.
Each product section comprises technical description and basic specifications, photograph of the system, available options and key feature / benefits. Further
information is provided on Genevac’s wide range of sample holders, intuitive yet powerful software and options for fast lyophilisation and specialist applications including handling highly volatile, explosive or acidic samples. A selection guide helps you to select the most appropriate HT system for your application.
Reader Reply Card No 53
RheoSense (USA) has released a new viscometer, µVISC™ (micro VISC), the newest product from core VROC® technology. HC, the newest chip, supports testing of higher viscosity ranges up to 20,000 mPas or higher.
With the new HC chip, this cost-effective instrument provides for easy and rapid viscosity measurements and now supports a wider range of applications. This technical combination supports industry demands for tighter quality control and fast and timely decision making.
With a simple 1-2-3 step operation, tests are completed within a minute. With the easy to use menu-driven application program, the user can view graphs of the results and generate a report with the touch of a finger. µVISC™ is an essential portable instrument for testing and evaluating materials such as biologics, chemicals, oils, and other liquids.
Reader Reply Card No 54
New Heated Sampler for Reliable Direct Injection of Viscous Matrices
The heated MMS 5000 is an application and matrix-optimised auto sampler, adapted to the special requirements involved in the introduction of viscous matrices. Thanks to the powerful heating option for both the sample vials and the injector head, even matrices that are difficult to handle, such as paraffin oil, lubricating oil, hydraulic fluids etc., can be analysed easily for their sulphur, nitrogen, carbon, and chlorine contents, ranging from ultra traces to percentage.
Fig: multi EA® 5000 with heated multi matrix
5000 with heated multi matrix sampler MMS 5000 – Advantages of the system:
sampler – elemental analyser for fast and reliable processing of viscous matrices. multi EA®
• Direct analysis of untreated viscous liquids • Elimination of dilution step as source of errors • Reliable fast analysis results • Precise, sensitive readings in analysis of trace contents
• Increased ease of use
Dilution as an additional sample treatment step is not only a factor of increased processing time and additional costs for suitable solvents, but also a possible source of mistakes and contaminations, and therewith erroneous analysis results. That is why it is preferable to analyse a sample matrix directly without dilution.
Besides, sometimes it is not possible to dilute a sample, due to the ultra trace element contents - as in quality control of paraffin and white oil for pharmaceutical purposes.
In that case the only way to introduce these samples is by means of boats, like a solid. But this type of sample feeding also bears risks (e.g. sample loss by hydrolysis processes and contamination by ambient pollutants), which will seriously affect the measurement results.
The multi EA® 5000, with its heated liquids sampler, effectively eliminates all these sources
of interference. It combines convenient, user-friendly hardware and short measurement times with high-precision dosing technology and minimal maintenance requirements. In addition, the unique flame sensor technology ensures the safe and quantitative oxidation of all types of solid and liquid sample matrices, independent of whether volatile, none volatile or highly viscous. This guarantees trouble-free use in shift operation, as required in modern labs.
Reader Reply Card No 56 Standards that you won’t want to be without
Multi-element, C, N, S, Cl determination in a single device
Extended measuring range, ultra-modern detectors ranging from ppb to wt-%
Multi-application, one analyzer for liquid, paste-like, solid, gaseous and LPG samples
Multi-matrix autosampler for the fully automatic determination of solid and liquid samples, vertical and horizontal
Conformity with a multitude of common international and national standards such as ASTM, EPA, DIN, ISO, EN etc. Easy to use, preset standard methods
Double furnace technology, vertical and horizontal operating mode in a single device
Self Check System (SCS) for optimum operating safety Flame sensor technology for matrix-optimized sample quantitative combustion multi EA® 5000 – New Elemental Analyzer
New D4294 Sulphur EDXRF also Measures: Cl, V, Fe, and Ni
To meet the needs of ASTM D4294 sulphur applications, Rigaku (USA) introduces the new low-cost NEX QC energy dispersive X-ray fluorescence (EDXRF) analyser. Featuring D4294 compliance in air, with an autosampler and C/H correction, the instrument is also ideal for measuring heavy elements (like: V, Fe, Ni) and chlorine (Cl) in crude oil as well as other heavy and refined petroleum products. Specifically designed for routine petroleum applications, the new Rigaku NEX QC features an intuitive “icon-driven” touch screen interface for easy operation and a built-in printer for convenience. The shuttered 50kV X-ray tube and Peltier cooled semiconductor detector deliver exceptional short-term repeatability and long-term reproducibility with excellent element peak resolution. This high voltage capability (50 kV), along with multiple automated X- ray tube filters, provides a wide range of applications versatility and low limits-of-detection (LOD). Applications for the NEX QC range across a broad spectrum of analytical needs, including: crude oil, marine and bunker fuels, diesel, heavies, lubricating oils and other petrochemicals.
Reader Reply Card No 55
Reader Reply Card No 57
August / September 2011 •
www.petro-online.com
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