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Analytical Instrumentation Sulphur Analysis Showcase New GC System is a Real ‘Plus’ to the Lab
Shimadzu (Germany) presents its new GC-2010 Plus. The previous model GC-2010 already set new standards with respect to speed, efficiency, precision, sensitivity and ease of operation. As the successor to this successful model, the GC-2010 Plus now features new aspects in High-End-Technology.
The external appearance has remained the same, the intrinsic values are different. Featuring the specially designed AFT (Advanced Flow Technology), the GC-2010 Plus combines highest separation efficiency with increased productivity and reduced analysis time.
Analytical methods are improved continuously to ensure optimal consumer safety as well as environmental protection and continuous increase in product quality. As the number of compounds to be controlled steadily increases new ideas and new technologies must be applied to extend the
separation efficiency in gas chromatography. In order to be prepared for future demands, using the latest GC technology has become a must for every laboratory.
All components of a GC system need to be integrated seamlessly. Improved carrier gas control, injection systems and column oven performance together with a family of new, best-in-class detectors engineered using the latest technology make the GC-2010 Plus well suited for highest requirements. The new features of the Advanced Flow Technology additionally boost the performance of the system.
Advanced Flow Technology is based on several systems to further enhance efficiency and productivity of a GC. Firstly; in Multidimensional GC (MDGC) two capillary columns with different separation mechanisms are coupled. MDGC systems separate and quantitate compounds in difficult matrices e.g. petrochemical (such as oygenates in petrol). When the target compounds have eluted from the column, the back flush system reduces analysis time by reversing the flow in the system and so flushing high boiling point compounds back through the split vent. To bring the effluent from the column to two different detectors (e.g. FID and EDC) the detector splitting system is applied. A mass spectrometer can also be used as second detector. In the detector switching system different detectors can be selected easily. Free-of-charge Advanced Flow Technology Software controls all parts of the AFT in combination with GCsolution and GCMSsolution software.
Compressing processes and saving time are important goals for an analytical laboratory. Total analysis time determines the sample throughput that can be achieved. Fast GC with narrow bore columns as well as the possibility to operate two analytical flow lines in one GC independently of each other decreases total analysis time. Additionally, the GC-2010 Plus features an improved oven cooling using a double-jet cooling system to increase the dynamic heat flow to the environment.
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Application for Optimised Determination of Sulphur in Fuels
Due to the increasing shortage of valuable raw materials such as mineral oil and natural gas, alternative fuels and the synthesis of substitute fuels from biomass (biodiesel, bioethanol etc.) are rapidly gaining in importance. On one hand, the basic materials which often contain extremely high levels of sulphur and, on the other hand, virtually sulphur-free end products with traces of sulphur of < 100 ppb have to be properly controlled. This requires the analysis technology itself to be just as varied as the new challenges facing sulphur analysers in fuel analysis, in order to meet requirements.
The multi EA® 5000 by Analytik Jena (Germany) is a multi-matrix analyser which has been especially developed for
determining sulphur contents in a uniquely wide concentration range for all fuel types, whether in a gaseous, solid, or liquid state. The fully-automatic, matrix optimised dosing technique guarantees highest precision during sample preparation, while eliminating potential operator errors. This combined with the highest safety standards is especially important during the analysis of complicated matrices such as liquefied gases under pressure (CNG, LPG etc.).
5000, in contrast, only works with one method. Optimisation of the process parameters to the respective samples is achieved here fully automatically, using flame sensor technology during combustion.
The use of the intelligent wide-range principle of the UV fluorescence detector facilitates reliable determination of sulphur contents in the range of ultra traces up to mass percent in a single analysis cycle.
It has a fully automatic sample preparation to ensure maximum precision and safety as well as a flame sensor and
double furnace technology for matrix-optimised sample digestion. In addition, it provides a reliable coverage of the relevant concentration range from ultra traces up to mass percent and includes an integrated safety system (Self Check System) and automatic system tightness tests (high-performance gasbox); to ensure maximum operational safety even during the analysis of critical sample matrices such as liquefied gases. It is Ideally suited for shift operation with minimal maintenance requirements and can be extended at any time for C/N/Cl analysis and determination of important environmental parameters TOC/AOX/EOX.
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World-wide Trusted Source for Reliable Calibration Standards for Petroleum Products and Lubricants
Analytical Services, Inc. (USA) are leading industry experts in the formulation of single and multi- element organo- metallic standards for analysis of wear metals and additives. Also available is a wide range of sulphur, chlorine, nitrogen and metals standards in various matrices as catalogue items or as custom sets to fit almost any special requirements. ASI offers a complete line of PE and PVC standards for RoHS/WEEE compliance as well as glass monitoring samples for XRF. Petroleum physical testing standards such as TAN, TBN, Bromine Index, viscosity, cloud point and flash point are also catalogue items, as is a complete line of biodiesel standards that satisfy ASTM D6751 and EN14214.
All standards are produced and certified “in-house” and are accompanied with a Certificate of Analysis indicating
traceability to NIST and ASTM methods, validity and relative degree of uncertainty. ASI can accommodate special formulation requests to serve specific needs of individual laboratories.
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Chromatography Data System Offers Versatility, Ease of Use and Conformity
Chromdis, Gecil Process’ (France) chromatographic data processing software for simulated distillation, conforms to ASTM D2887, D3710, D5307, and new D6352 methodology. This software is ideal for any ASTM simulated distillation method the users’ own method as well as for any specific simulated distillation development. It also conforms to standard IFP methods for Conventional Simulated Distillation (35-650°C) and high temper- ature simulated distillation (174 - 720°C).
This intuitive and easy to use system offers ‘quantitative mode’ - with internal or external standards or without standard, two modes of processing data: ‘post run mode’ or ‘reprocessing mode’ - (single or batch processing,) on-screen viewing of results, calibration graphs, and Simulated distillation graphs and GLP compliance.
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Just as modern fuels are varied, so are the demands they place on the combustion process. Failure to take this into account in the selection of the process parameters may quickly lead to incomplete combustion, thereby significantly impairing analysis accuracy and operational safety. Conventional systems require a special method for each sample to be analysed. The multi EA®
Fast, Reliable Analysis of Sulphur In Fuels
Thermo Fisher Scientific (USA) announces the intro- duction of a new analytical package designed for use in the petroleum industry which delivers accurate and reliable X-ray analysis. The Thermo Scientific ARL Optim'X Sulphur Analyser provides a comprehensive analytical package covering from ultra-low to high percent sulphur concentrations in a wide range of petro industry products. It is a compact and reliable WDXRF platform configured with dedicated Multichromators for fast analysis and improved sensitivity.
As environmental regulations become stricter, the demand for ultra-low sulphur analysis in fuels is on the increase. Regulatory authorities worldwide have set maximum limits for sulphur content in these products and as a result petroleum companies require fast and accurate means of analysing low parts-per- million sulphur levels. The new ARL Optim'X Sulphur Analyser package is a turn-key solution which is pre- configured to meet these specific sulphur analytical testing requirements in light and heavy fuels and oils. Thanks to the innovative Ultra Closely Coupled Optics (UCCOTM
), the equivalent of a 200W analytical
performance is generated from 50W X-ray power, without the need for water cooling.
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February/March 2010
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