Last Wednesday, on the 11th of December, Louise and Wei-Chieh (Harry) had their PhD half-time seminar presentations. The aim of the half-time seminar is to give an overview of the already done work but also to discuss the research planned for the second part of their PhD studies. Louise’s presentation was titled “Quantification Approaches for […]
Tag Archives: quantification
13
Nov
Nov
In the middle of October, a large part of our group had a chance to present and discuss our research in ICNTS 2023 in Erding, Germany. ICNTS, International Conference on Non-Target Screening for long, is a biannual conference focused on detecting, identifying, and characterizing unknown chemicals with high-resolution mass spectrometry and other techniques. The rather […]
29
Sep
Sep
From 27.-29. of September, I attended the Austrian Proteomics and Metabolomics Association (APMA) meeting in a breathtakingly beautiful Innsbruck, Tirol. The three days were filled with exciting talks on proteomics (my special focus was studies related to toxic effects) and different aspects of metabolomics (amino acids, xenobiotics, lipidomics). I was invited to give a keynote […]
25
Mar
Mar
On my third try, I was finally able to participate in Pittcon last week. This year Pittcon took place in person in Philadelphia, US. I was lucky enough to present our recent works in two presentations, one on quantitative nontarget screening (NTS) and the other on toxicity prediction for unidentified chemicals. You can find my […]
20
Dec
Dec
Last week of November I and Louise participated in a two-day NTS workshop on analytical techniques and implementation followed by a two-day NORMAN network‘s annual meeting in Odense, Denmark. NORMAN interlaboratory comparison of semi-quantification methods We presented the quantification strategies for the LC/HRMS nontarget screening together with a first glance at the results from the […]
26
Oct
Oct
Last Tuesday Jon Sobus from EPA presented some of the findings from a recent paper Uncertainty estimation strategies for quantitative non-targeted analysis, where we were also happy to collaborate, on the BP4NTA online meeting. People from BP4NTA meetings have been reaching out with questions on ionization efficiency-based quantification. Some of these are often asked of us and I decided […]
Recently, I attended my first in-person conference, the Nontarget Analysis for Environmental Risk Assessment SETAC Focused Topic Meeting. It was held in Durham, NC, USA from May 22 -26 2022, and it was a very intense week filled with interesting talks, posters, and meetings with other scientists. It was very nice to put a face […]
10
Sep
Sep
How do you know which of the compounds detected in suspect or non-targeted screening is most likely to cause an adverse effect? Which is most toxic? Which is present in the highest concentration? Which is having a concentration close to a toxic endpoint? This is exactly what we are answering in our latest research in […]
25
May
May
Recently we have published a paper on advancement in predicting ionization efficiency in ESI and using this for estimating the concentration of pesticides in cereal samples without the need for analytical standards. In this paper, we explored the possibility to use machine learning for fast and accurate prediction of ionization efficiency. Previously we have carefully […]