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Analytical Instrumentation New automated sample preparation system
Teledyne CETAC Technologies haveintroduced a new automated sample preparation system to the market. This system is designed to automate the sample preparation process for environmental, mining, pharma, clinical and soil laboratories. The SimPrep utilises the industry standard ASX-560 or ASX- 280 autosampler, both manufactured by Teledyne CETAC, and a high precision dual syringe pump with fl exible, simple software. Both the autosampler and syringe pump have proven to be robust, fast, accurate and precise solutions to laboratories worldwide.
“The SimPrep is a labour saving sample prep system for the complex to simple sample preparation found in today’s labs, which saves on the bottom line of the laboratory” says Gary Preister, Teledyne CETAC Business Development Manager. “We are very excited to release this solution to assist our customers in eliminating the manual sample preparation steps performed on a daily basis,” adds Preister.
The SimPrep does more than just mixing and dispensing; it can automatically create spikes,calibration cures from predefi ned dilution factors, serial dilutions, internal standard additions, 1-to-1 and 1-to-many sample transfers (splitting) and acidifi ed samples
SimPrep includes a wide range of syringes from 20µL (microliter) to 50mL (milliliter) and a single system can serve multiple techniques such as ICP-MS, ICP, AA, Colorimeter, IC and FIA.
Typically SimDist achieves homogenous dilutions of up to 2000x, carryover <0.01%. precision of 100% at <0.2%, accuracy 100% +/- 1% and linearity r2 = >0.999996 over a wide range.
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Pyrolysis-GC×GC-QTOF for the improved characterisation of crude oil
JSB have released a new application note describing how to overcome the challenges of detailed composition characterisation in crude oil.
Pyrolysis coupled to comprehensive two-dimensional gas chromatography- mass spectrometry (py-GC×GC-MS) is a very powerful technique for the characterisation of complex, heavy matrices such as crude oils. In the application note the py-GC×GC-MS method was applied to 3 samples from different origins and with differing density and sulphur content.
The results substantiated that two- dimensional resolution provides enhanced separation of the pyrolysis products, leading to improved classifi cation for groups and individual analytes. Additionally, the 2D pyrograms make sample comparison easier and more informative. In spite of the enhanced separation power offered by GC×GC, complexity is such that complete resolution is often not possible. The use of High Resolution Mass Spectrometry (HRMS) can deliver extra selectivity and identifi cation power, especially for compounds with heteroatoms (e.g. N, S, O).
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LECO’s Pegasus BT provides users with solutions for a wide range of applications, including gasoline and petroleum analyses; for example ASTM D5769 method requirements are fully satisfi ed. Three fundamental criteria are met for ASTM D5769: sensitivity % for 1,4-diethylbenzene, achieving specifi ed ion abundance ratios, and calibration linearity for all analytes. The Pegasus®
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BT easily satisfi es these method requirements and
brings a number of other benefi ts to your petroleum analysis including sample archival for future data mining, qualitative and quantitative workfl ows, and a StayClean®
ion source,
which virtually eliminates the need for source cleaning. For More Info, email:
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Optimising GCxGC for petroleum analysis using a free tool
LECO’s Simply GCxGC® method development tool is designed for both the new user looking to get started with GCxGC, as well as for the experienced user who wants to streamline their analysis. This free tool walks users through the necessary steps of creating a GCxGC method from scratch, or converting an
existing 1D GC method
to GCxGC. In our latest poster, Optimizing GCxGC Parameters for Petroleum Analysis Using a Free Web-Based Tool, we walk you through the experimental process of translating an existing analysis into an optimized GCxGC method for a sample of diesel fuel. Calculations that maximise use of two-dimensional space and minimise analyte wrap-around are applied to user-controlled parameters to make the most of peak-capacity increases and further enhance the chromatographic resolution gains from the additional dimension of separation.
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LECO’s Pegasus BT easily satisfi es ASTM D5769
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