24 Analytical Instrumentation New Generation of Gas Chromatographs
At the 23rd Analytica Trade Fair for Laboratory Technology and Analytical Conference, Bruker (USA) announced the release of its new generation gas chromatography platform – the SCION™ Series Gas Chromatographs.
Utilizing the Innovation with Purpose Strategy, the new SCION 436-GC, and the SCION 456-GC set a new standard for data acquisition speed, >600 Hz per channel. This key advance increases productivity and provides a platform that will inspire further advancement of GC separation technology. Every SCION GC series comes standard with a 9 inch, multi-language touch-panel designed for full GC operation in 13 different languages, making it truly a global instrument.
Dr. Frank Laukien, President and CEO of Bruker Corporation commented, “The launch of the new generation SCION 436 and 456 Gas Chromatographs reaffirm our commitment to providing innovative new products to the gas chromatography market. Continuing from the incredibly successful SCION TQ and SQ products, the new SCION GC’s set the stage for even more innovations from Bruker in this key market segment.”
The SCION 436-GC is a compact 2 injectors, 2 detectors, platform that supports all the injectors and detectors including mass spectrometry – a perfect choice when bench space is at a premium. The SCION 456-GC provides industry-leading flexibility by supporting 3 injectors and 4 detectors, including the mass spectrometer. Meredith Conoley, Director of GC Marketing, added, “The SCION 456-GC is the industry’s first system to be able to simultaneously acquire data from 4 detectors including a mass spectrometer, providing our users a rapid time- to-benefit advantage.”
Mr. Collin D'Silva, President of the Bruker Chemical & Applied Market (CAM) division, remarked: "The launch of our new generation Bruker SCION Gas Chromatographs coupled to our Pittcon 2012 launch of CompassCDS C/S sets the standard for high-productivity GC analysis, making the SCION platform one that’s focused on results."
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Outsourcing ISO 17025 Verification for ASTM D93 Flash Point Analysis
When reporting on distillation, results need to be verified in order to be compliant with ASTM D93. Compliance offers traceable and comparable results.
ELS (Belgium) specialise in high precision ISO 17025 verification and save lab operators time and money by making any necessary adjustments to instrumentation when tested which means better precision and higher profits in production environments where blending can be followed more accurately.
ASTM D93 standards are the test methods that cover the determination of the flash point of petroleum products in the temperature range from 40 to 360°C. These test methods describe apparatus, sample handling, preparation of the apparatus, calibration and standardisation, the test procedure and levels of precision. This means that Lab operators require knowledge of sample treatment, test procedure, reporting and interpretation of the test result.
However, specialised automatic equipment is needed to ensure that the specific requirements of the ASTM D93 standards are met. This means that lab operators face capital costs as well as additional staff training costs to ensure the skilled operation of specialised test and calibration equipment. Therefore it is mandatory to determine the parameters which have to be verified for ASTM D93 Flash Point determination.
Bunker Liquid Phase H2S Limit in ISO 8217:2010 takes effect in July 2012
A 2 parts per million (ppm) limit for H2S in bunkers will be taking effect in July this year
under ISO 8217:2010, the latest revision of the standard including test method IP 570. The
limit for H2S was introduced into ISO 8217:2010 to safeguard ships' crew as it may be found in marine bunker fuels, and can be released as a highly toxic gas.
An updated version of the test method has been approved by the UK Energy Institute, now IP 570 12/A, which incorporates the new Vapour Phase Processor (VPP) procedure.
The method compliant H2S Analyser and VPP instrument from Seta Analytics (UK) has been to proven to remove any
interfering chemical species previously shown to be present in a small number of fuels.
IP 570 continues to provide a quantum leap in ease of carrying out H2S liquid phase testing, giving the marine industry a robust specification tool for monitoring H2S in marine fuel.
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According to ASTM D93, Section 10.2 a thermometer or temperature probe should be verified to be in accordance with section 6.3 of the method. Verification consists of calibration of the sensor in calibration baths, ELS supply a certificate of calibration with corrections for the sensor and if programming corrections are made verification of the of the analyser’s readout results before and after adjustment are recorded on the test certificate.
When redressing heat rate and stirrer speed - ASTM D93 Sections 11, 12 & 13 stipulate that the sample shall be heated following a fixed heat rate and the stirrer speed, depending on the chosen method (A, B or C). Verification of the heat rate consists of running a Flash Point test according to ASTM D93 (A, B or C), recording temperature as measured by the analyser and record the time measured with a calibrated chronometer. Whilst verification of the Stirrer Speed consists of starting the stirrer with the method required stirrer speed and measuring the stirrers actual speed by using a calibrated tachometer and comparing it to the Flash Point Testers setting and/or readout. Again ELS’ results are recorded on the test certificate
ASTM D93 Section 6.5 stipulates that the barometric reading should have an accuracy of +/-0,5 KPa. Verification requires a comparing the barometric reading with a reading from a calibrated precision reference barometer. ELS will do this, record the pressure readings, adjust the barometer where if necessary, perform a further test after the adjustment and record the new results on the test certificate.
In the case of Flash Point results, ASTM D93 Section 10.3 stipulates that calibration of the instrument shall be verified by means of a Certified Reference Material (CRM). Verification consists of running a Flash Point test according to ASTM D93 method A. The results of the flash point temperature test are compared with the tables given in ASTM D93. ELS record these results on the test certificate.
H2
IP 570/12A, ISO 8217:2010, ASTM D7621 for Residual and Distillate Fuels
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April / May 2012 •
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with Vapour Phase Processor (VPP)TM
ELS offers years of experience and know how in assisting labs throughout Europe conform to ASTM and other industry standards. By outsourcing the testing and calibration of specialised instrumentation to ELS, customers have been able to carry out their laboratory analysis efficiently and cost effectively whilst leaving concerns of compliance to the experts.
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