Displaying items by tag: TOFMS

I started working with the PEGASUS GC-HRT+ 4D back in my student years. As a novice researcher, with no experience working with similar devices and no training, it was not easy at first. However, after years of working with this instrument and when compared with other sophisticated equipment in the field of gas chromatography - high-resolution mass spectrometry, I can confidently say that the ChromaTOF is the most user-friendly software of all those available now. Such a variety of functions, as well as very clear, convenient, and fast operation, combined with high-tech equipment, allows to get very decent results.

Over the past 5 years of using the Pegasus GC-HRT+ 4D, we have been able to conduct many various environmental studies, identifying trace amounts of substances in the cleanest Arctic environmental objects. At the same time, such a powerful combination of two-dimensional gas chromatography with time-of-flight mass spectrometry made it possible to analyze complex matrices, namely peat combustion products, herbal and tobacco cigarette smoke, petroleum and much more.

It is worth noting the work of the support service, which helped us very quickly and efficiently. I would like to thank the engineers for their work, who were on call almost 24/7. There are still many projects and tasks ahead that will undoubtedly be solved with the help of the Pegasus GC-HRT+ 4D.

"We send instruments into the harshest of environments and run very demanding samples on them. Bearing this in mind, our decision to upgrade the GC-MS at our remote Cape-Verde site to the new LECO PEGASUS® BT was driven by the promise of the StayClean® source. This minimizes down time and eliminates operations which are difficult to carry out when working with remote systems. The increased sensitivity of theinstrument enables us to take smaller sample volumes which again assists with easing the burden placedon the analytical machine. Finally! the upgrade from quadrupole to time of flight mass spec will enable us to keep historical datasets which can be interrogated for any compounds which prove interesting in the future."

"In 2013, I became responsible for overseeing the department’s analytical suite which included a LECO PEGASUS® 4D GC×GC TOF MS as our flagshipinstrument. I had no experience in gas chromatography and found even a standard GCMS daunting. Over the past years, I received extensive support from LECO. Especially withsupport from LECO UK the instrument is still running strong a decade after purchase. I anticipate it will go for another decade and then some."

"We at SGS MOSH/MOAH group are using the GC × GC-TOFMS from LECO to separate the highly complex fractions of MOSH/MOAH contaminates in food. When you want to identify special patterns of contamination species amongst other analytics (e. g carotenoids) you need a high separation power in combination with a fast screening MS. This is provided by the LECO TOF. Actually we have a new project together with LECO and another company to quantify MOSH/MOAH fractions. The complexity of the instrumentation is high, but with the support of the application team from LECO we reach our goals."

"Initially we had some fears about whether the option of the time of flight detector would be the best for our laboratory, since we have no other system of this kind installed. However, at the end of 6 months of operation with the GC-TOFMS system, it was widely recognized internally that we made the right choice. An easy-to-operate system with high sensitivity, reproducibility and severalanalysis options for a large universe of analytes, and in the most varied matrices increases the versatility of laboratory operation as well as the possibility of responding to the most demanding customer requests."

"Our virtual metabolomics research center has six GC-MS instruments, and the LECO PEGASUS® 4D is the crown jewel of our science park. The results of GC-MS profiling performed using GC×GC technologies has madea strong impression on users and has seriously improved the quality of ourpublications. The fast-scanning capabilities of the TOF-analyzer effectively augment the dataobtained on the ordinary quadrupole, especially when working with the most complexmatrices which are most often the subject of metabolomics analysis. The reliability of the device is especially deserving of praise. The equipment can withstand a very demanding load with constant, round-the-clock operation."