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News and updates from the PTR-MS community

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Archive for the ‘Science Update’ Category

New Analytical Chemistry Paper on CHARON PTR-TOFMS Performance

Bulk Organic Aerosol Analysis by PTR-MS with High Precision & Accuracy

IONICON All-in-One Analyzer: the CHARON PTR-TOF 6000 X2

Very recently, we have published a technical note in Analytical Chemistry introducing an improved methodology for the determination of organic aerosol properties with CHARON PTR-TOFMS. By analysis of a large set of pure compounds we were able to derive an algorithm to correct for ionic fragmentation. Therefore CHARON is now able to measure the bulk aerosol mass concentration, bulk average elemental ratios (e.g. H:C, O:C) and even bulk average molecular formulas in unprecedented precision and accuracy.

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The Evolution from SIFT-MS to PTR-MS

From SIFT to ultimate performance PTR-TOF trace gas analyzers

The success story of PTR-TOFMS has its roots in the so-called “Flowing Afterglow Technique”, introduced in the 1960s. From this starting point continuous research and innovations by various experts, who wanted to eliminate instrumental drawbacks and shortcomings, have led to different technological milestones, among them SIFT-MS.

But innovation didn’t stop there and technological breakthroughs resulted in the development of PTR-MS, ultimately PTR-TOFMS as the current established “gold standard” for direct and extremely sensitive trace gas analysis.

Read our new whitepaper on the evolution from SIFT to PTR-TOF and all the benefits that are now available to you, beyond SIFT-MS.

New Brochure: The All-in-One Trace Organic Online Analyzer

Includes IONICON CHARON PTR-TOFMS, EVR and NH4+ ionization

Continuous evolution and many important updates of our technologies are illustrated and explained in our new “Direct Particle & Gas-Phase Monitoring With CHARON PTR-TOFMS” brochure.

Click to download the new “All-in-One Trace Organic Online Analyzer” flyer

Fresh from print, we now make this new IONICON technologies flyer available for you. Click the picture to download.

Interested in our All-in-One Trace Organic Online Analyzers? Contact us!

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NH4+ Ionization for Explosives and CWA Detection

Crucial application benefits from fast switching NH4+ ionization

The proprietary and IONICON exclusive method of producing NH4+ solely from H2O vapor and N2 in the established hollow cathode ion source, without the need of any ammonia (PCT application submitted) has many advantages.

Today we would like to introduce a promising application field where NH4+ is the ideal reagent ion. The unambiguous and highly sensitive detection of explosives as well as chemical warfare agents.

TATP real-time detection

Analyzing the headspace of some µg of the infamous explosive TATP with NH4+ reagent ions boosts the TATP.H+ signal by a factor of 20 compared to the H3O+ mode, because of suppressed fragmentation. Additionally the cluster TATP.NH4+ is formed at an even higher abundance. Thus, by using TATP.NH4+ as an additional detection marker, also the selectivity is considerably improved in “NH4+ mode”.

Live tests and real-time detection of CWAs

The nine most important CWAs (including Sarin, Tabun, Soman, VX, Lewisite, Cyclosarin, Nitrogen mustard and Sulfur mustard) have been investigated at a facility specialized and licensed for CWA handling.  (more…)

The New Exclusive SRI-MS Reagent Ion: NH4+ and Its Benefits

A novel proprietary method of NH4+ production for IONICON customers

In PTR-TOF-MS traditionally H3O+ reagent ions produced from H2O vapor are used. NH4+ reagent ions have been mentioned in literature as being particularly beneficial because of higher sensitivity (less fragmentation) and higher selectivity (higher proton affinity). However, so far toxic and corrosive ammonia was needed for NH4+ production.

We developed a novel method of producing NH4+ solely from H2O vapor and N2 (gas cylinder or filtered air) in the established hollow cathode ion source, without the need of any ammonia, by adjusting the pressure and electric fields in the source (PCT application submitted). That is, the reagent ions can be rapidly switched. (more…)

Free download of Contributions to the 8th PTR-MS Conference 2019

All abstracts from the 8th International PTR-MS Conference are now online

In February 2019, the must-attend event for all PTR-MS users took place, attracting more than 100 participants from 18 nations. There’s a short review if you would like to know more.

Have you ever wondered what this huge number of IONICON instrument users achieves with their instrument, what they investigate, which complex processes they capture or industrial VOC monitoring challenge their solve with our instruments?

Book of Contributions to the 8th International PTR-MS Conference 2019

Download the brand new book of submitted conference abstracts and see why our customers rely on genuine PTR-MS, an IONICON-exclusive technology, featuring our patented Ion-Chemistry Quality and TRU-E/N™.

 

The 8th International PTR-MS Conference, Innsbruck, Austria – a review

Must-attend science forum attracted over 100 conferees from 18 nations

At the beginning of February 2019, the International PTR-MS Conference was held for the 8th time. Ever since the first International PTR-MS Conference in 2003, organized by the Institute of Ion Physics of the University of Innsbruck and sponsored by IONICON, the event became a fixed point in the scientific agenda of many of our international peers.

Talks at the 8th International PTR-MS Conference took place in a historic venue of the University of Innsbruck

Since then the conference evolved, attracting more and more participants filling larger venues. If at the very beginning technology enthusiasts and early-adopters were gathering to exchange and network on their experiences with the first IONICON Quadrupole-PTR-MS instruments, the meeting soon became the PTR-MS event for all IONICON instrument users. The program comprised a selection of parallel sessions covering the very broad field of applications that modern PTR-TOF instruments are successfully used in. (more…)