IONICON blog

News and updates from the PTR-MS community

IONICON_banner

Posts Tagged ‘PTR-TOFMS’

PTR-MS now with Patented Ion-Chemistry Quality and TRU-E/N

The proprietary TRU-E/N™ method for utmost quantification accuracy

Founded by the inventors of Proton-Transfer-Reaction – Mass Spectrometry more than 20 years ago, IONICON has always been renowned for absolutely precise control of the ion chemistry during chemical ionization.

ION-BOOSTER funnel and hexapole ION-GUIDE with TRU-E/N

For IONICON this fact is still true even after the introduction of Radio Frequency (RF) components for focusing and transferring the ions from the reaction region into the mass analyzer.

Several manufacturers of CIMS instruments are trying to boost the sensitivities to the high spheres in which IONICON’s PTR-MS instruments perform. However, this comes at an extremely high cost: control over the ion-chemistry is lost. Undefined fragmentation of analytes renders a comparison of results with values published in the ample PTR-MS literature and, most importantly, accurate quantification impossible. As the reduced electric field strength (E/N) in the reaction region cannot be calculated any more as soon as RF devices are implemented, no E/N values can be stated upon publishing of measurements*, which seriously limits the reproducibility of results. (more…)

Taking CHARON PTR-TOF to the Sky

At the Frontier of Airborne Research aboard NASA’s Flying Laboratory

Using the opportunity provided by NASA’s Student Airborne Research Program (SARP) we gave wings to our newly developed CHARON aerosol inlet. In cooperation with the University of Oslo our team combined CHARON and a custom built PTR-TOF 4000 instrument.

“Business Class” for our airworthy CHARON PTR-TOF 4000, monitoring VOCs & aerosol in real-time.

Airworthiness requires withstanding of heavy G-forces, coping with pressure changes and most importantly being fail safe. Therefore unique modifications to CHARON have been made and thoroughly tested before getting airborne. (more…)

PTR-MS is not PTR-MS?!

IONICON-grade PTR-MS Quality: Important Ion Chemistry Dimensions

You’ve got used to expecting an IONICON-grade instrument when you see the abbreviation “PTR-MS“? After all, more than 350 IONICON PTR-MS instruments yielded hundreds of high-impact papers and allowed gaining insights in various science domains. But, what determines a real IONICON PTR-MS and how does it compare to other CIMS technologies that sometimes are also claimed to be “PTR-MS”?

Watch our webinar and learn more about the 4 quality dimensions that determine genuine PTR-MS, a technology only available from IONICON:

Don’t have time for the full webinar? Read about the 4 quality dimensions on our website.

Watch now: CHARON PTR-TOFMS on-demand webinar Part 1

The award-winning technology for real-time aerosol analysis

We just finished the first on-demand webinar on the CHARON PTR-TOFMS technology and are glad to share it with you.

Learn more about the method and performance of CHARON PTR-TOFMS which detects the most abundant range of atmospheric organic carbon compared to other analyzers or inlet systems on the market.

(more…)

Ruggedized and Airworthy PTR-TOF 4000

Custom-built by IONICON engineers for the University of Montana

One of the special skills we are known for is to custom-build PTR-TOFMS and ioniTOF systems for research and industrial applications. Our engineering team is eager to work out special solutions and by now we have a solid track record for more than two dozen tailor-made analytical instruments that are fully customized.

IONICON engineers with “their” instrument before we shipped it to the University of Montana

Each one is unique and purpose-built to withstand G-forces, shocks, varying pressure levels and temperatures that you and I wouldn’t like to experience. Often also size and weight matters and our team has to make the instrument fit into spaces where a normal analyzer is too large or heavy. (more…)

CHARON Real-Time Aerosol Inlet System for PTR-TOFMS

Direct Sampling and Analysis of Atmospheric Particulate Organic Matter

An international team of researchers from the University of Innsbruck (Austria), the IRCELYON in Lyon (France) and the University of Oslo (Norway) recently studied the application of the new CHARON Particle Inlet to directly sample and analyze the chemical composition of atmospheric sub-µm particulate organic matter (POM) by PTR-TOFMS.

CHARON PTR-TOF 6000 X2 with two inlets in parallel for real-time VOC and particle analysis

By conducting laboratory based measurements of pure aerosolized substances the team could demonstrate the quantitative response of CHARON PTR-TOFMS to a range of typical POM substances down to single-digit ng m-3 mass concentrations. This quantitative response combined with the low selectivity of PTR-MS led to a good agreement in the detection of total urban POM in comparison with other state-of-the-art aerosol instrumentation.  (more…)

Benefits for High-Resolution IONICON PTR-TOF for Food & Flavor Science

Analysis of Complex Flavors in Real-Time with Ultra-Low Detection Limits

For many years PTR-MS instruments are considered a gold-standard in many applications when it gets to the quantitative online analysis of very low concentrated VOCs without sample preparation. Among the early adopters of this unique technology that was commercialized by our company back in 1998, were researchers interested in aroma release monitoring and the direct analysis of flavors in real-time while consumers were enjoying the products. This lead to an early breakthrough of PTR-MS in food & flavor science.

Application note: Analysis of Complex Flavors with PTR-TOF 6000 X2

Now more and more PTR-MS instruments based on time-of-flight mass spectrometers are used by our customers who benefit from the high-resolution and sensitivity as well as a real sub-pptv detection limit that e.g. our current flagship model PTR-TOF 6000 X2 offers.
(more…)