Tobias Kroniger

82 posts

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Tobias Kroniger

Tobias Kroniger

@kronigert

Field Application Scientist @ Bruker Daltonics. Views are my own. he/him. #Proteomics #TeamMassSpec

Katılım Mayıs 2023
146 Takip Edilen67 Takipçiler
Tobias Kroniger
Tobias Kroniger@kronigert·
@lgamon That's odd. Using a method like this for in-batch calibrating for example a blank in between runs (same IM slope) should work. The signal is definitely enough. Let me get back to you tomorrow.
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Luke Gamon
Luke Gamon@lgamon·
@kronigert It is visible with >10^5 signal. Made a method specifically to catch all three ions. I only have a picture from one of the heavily spiked filters:
Luke Gamon tweet media
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Tobias Kroniger
Tobias Kroniger@kronigert·
@lgamon There has been a change in the software. Now all three masses have to be visible for a successful calibration. Often, the 1222 is not visible as it requires at least 1.45 1/k0 on the upper IM range. Is this maybe the issue?
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Luke Gamon
Luke Gamon@lgamon·
@kronigert Thanks Tobias. I’ve had great success with it a couple of years ago but I’m having the in-batch calibration fail both with ‘low’ spiked signal and ‘high’ spiked signal. Any ideas? The IM and m/z calibration are otherwise perfect.
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David Gomez Varela PhD
David Gomez Varela PhD@DavidGomezVar·
I'm excited to share that I'll lead a new Center of Excellence for Metaproteomics, a joint venture between the University of Vienna and Bruker. This initiative will leverage cutting-edge mass spectrometry and AI to unravel the mysteries of the microbiome. medienportal.univie.ac.at/en/media/recen…
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Joerg Doellinger
Joerg Doellinger@DoellingerJ·
Proteomics goes viral! We present vPro-MS to identify human-pathogenic viruses in patient samples from diaPASEF/DIA data. We developed a peptide library covering the human virome from 20,000 genomes, which enables highly specific detection (>99,9%) using vProID scoring.
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Tobias Kroniger
Tobias Kroniger@kronigert·
@UCDProteomics @neely615 @JeremyBalsbaugh @lgamon For full functionality in DataAnalysis a licence is necessary that's true. If no floating licence is present it can be operated in Viewer mode. In viewer mode you cannot create traces, but if traces are already saved within the .d (e.g. by a script), you could have a look at them
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Tobias Kroniger
Tobias Kroniger@kronigert·
@JeremyBalsbaugh @lgamon @neely615 My DMs are open if you need assistance. I can also share a DA script with you that does TICs, BPC and EICs that are set in a .csv. You can edit the respective peptide masses in the .csv to get your desired output.
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Jeremy Balsbaugh
Jeremy Balsbaugh@JeremyBalsbaugh·
@kronigert @lgamon @neely615 I agree - quick data viewer is helpful for a quick “squinty eyes” glance at the chromatogram pattern. Have played with the DA script a bit ages ago for QC runs, probably worth exploring again. Thanks
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Tobias Kroniger
Tobias Kroniger@kronigert·
@lgamon @JeremyBalsbaugh @neely615 If you have certain traces (TIC MS, TICMSMS, BPC, EICs of your favorite peptides) that you monitor all the time, you can set them up in a DA script and let it run after finished acquisition using the "Automated Processing" Function in HyStar. Traces are then shown instantly in DA
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Luke Gamon
Luke Gamon@lgamon·
@JeremyBalsbaugh @neely615 TIC MS1, MS2 and BPC plotting in the ‘Quick Data Viewer’ in Hystar (eg if using chromeleon/Dionex LC) is essentially instant. I’m guessing this info is extracted during the run and saved in the the hystar info? Really nice solution
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Vadim Demichev
Vadim Demichev@DemichevLab·
Excited to announce DIA-NN version 1.9, our software suite for proteomics data processing! A range of cool new features and general performance improvements. We consider it the most significant update in the history of DIA-NN. github.com/vdemichev/DiaN…
Vadim Demichev tweet media
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Prof. Nikolai Slavov
Prof. Nikolai Slavov@slavov_n·
A new resource to assist with scalable & multiplied single-cell proteomics. It describes a workflow using nPOP and plexDIA on timsTOF systems. #resources" target="_blank" rel="nofollow noopener">scp.slavovlab.net/protocols#resobruker.com/en/products-an…
Prof. Nikolai Slavov tweet media
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Tobias Kroniger
Tobias Kroniger@kronigert·
On average, >7k PG and >99k peptides were identified with 200 ng K562 digest with low variation. Also, differences between regularly used QC-standards were assessed (K562, HeLa, and HEK (in-house digest). The SOP provided to the laboratories is available in the supplement
Tobias Kroniger tweet media
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Tobias Kroniger
Tobias Kroniger@kronigert·
Check out our newest preprint where the same instrument setup (nanoElute2 + timsTOF HT) was used in 11 laboratories to evaluate the performance and reproducibility using short 5-min gradients. biorxiv.org/content/10.110…
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