#chemometrics

14th of January // January study challenge

Today was the last day of studying for chemometrics, since my exam is tomorrow morning. I have confidence that it will go well. I made the exercises and they went well. So let’s see how this goes. Have a great evening everyone!

-- show us how you keep cosy in the cold months! --

15th of January 2021 // January study challenge

This morning I had my chemometrics exam & I think it went well, considering I didn’t really have the time to study for that course. So that was a good start of the day (the downside is that it was a 4 hour exam o.0). In the afternoon I studied a bit of mechanics (I have that exam on Monday), and my boyfriend is coming over soon. But he will leave early tomorrow morning, that way I can study all day long. 

I am a HUGE Selena Gomez fan (I’m obsessed since 2009) and she has a new song that came out today. It’s a completely in Spanish, you can watch the music video here if you want :)

(also, I woke up with 50 notes on my post from yesterday, HOW?! very happy tho)

-- halfway—did you make any / have you kept up with your new years resolutions?--

My New Years resolutions were passing my second year of chemistry and working out more regularly. I have exams right now, so I am definitely working on the first part. I’m not working out consistently right now, mostly due to the exams. But it’s my last 7 days of this exam period, after that I will definitely do my workouts more regularly :)

13th of January 2021 // January study challenge

Today, I studied for my next exam which is on Friday the 15th. It’s an online open book exam (but with camera and audio). The course is chemometrics. That is basically analytical procedure results combined with statistics. How to check if they are reliable and reproducible etc. I’m happy it’s an open book exam, because without the exercises I made, I don't think it could do it haha. I basically had to start today, because I put a lot of time in my other exams :/ not my best idea, but I’m managing.

(you wouldn't believe how much I used google translate to write this post today, oops)

Also, if you haven’t yet, go listen to drivers license by Olivia Rodrigo. It’s AMAZING.

-- how do you deal with stress? --

This video presents a comparative study of multivariate statistical methods for chemical forensic profiling of a carbamate chemical warfare agent precursor. The study explores advanced chemometric tools — including PCA, LDA, PLS-DA, hierarchical clustering, Random Forest, SVM, and t-SNE/UMAP — to assess classification accuracy, pattern recognition, and source attribution. The focus is on analytical interpretation, validation, and the ethical and legal framework of forensic chemistry, ensuring strict adherence to non-proliferation principles. This comparative analysis provides valuable insights for researchers, forensic scientists, and data analysts working in chemical security and analytical chemistry.

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Chemometric Forensic Study of Muscle Contusions #researchawards #sciencefather #fosawards

This study presents a continuous forensic spectral analysis approach to distinguish antemortem and postmortem muscle contusions using chemometric modeling. By integrating advanced spectroscopic techniques with multivariate statistical analysis, the research aims to develop a reliable, non-destructive method for postmortem interval estimation and injury characterization. The findings provide valuable insights into forensic pathology, improving the accuracy of bruise age determination and enhancing objective decision-making in medico-legal investigations.

Nomination Link: https://forensicscientist.org/award-nomination/?ecategory=Awards&rcategory=Awardee

Down the rabbit hole of the Limit Of Detection (LOD)

This is a guest post by Gaëlle Charron, Maîtresse de conférences at Université de Paris. In a post about SERS sensing hosted on this blog, I complained about LODs being often reported below the concentration range in which the sensor displays a linear signal vs. concentration response. Wolfgang Parak reacted here: he thinks this is not an analytical error. This is a good discussion to have, one…

Chemometrics - Assisted UV Spectrophotometric Method for Determination of Ciprofloxacin and Ornidazole in Pharmaceutical Formulation

Read More : http://dx.doi.org/10.20431/2455-1538.0301005

ARC Journal of Pharmaceutical Sciences