Sergey Girel's Avatar

Sergey Girel

@sergeych.bsky.social

Only here and now - fat cat develops #metabolomics and #lipidomics profiling methods using LC-HRMS! University of Geneva ๐Ÿ‡จ๐Ÿ‡ญ

113 Followers  |  133 Following  |  12 Posts  |  Joined: 13.11.2024  |  1.5501

Latest posts by sergeych.bsky.social on Bluesky


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Doing lipids on previous gen of orbitraps with HCCT/narrow aperture funnel is a pure fun and joy. Especially looking at that cholestadiene peak in NL 1e8 range. So, who are lucky enough to have these machines and unlucky enough to do small molecules - set your RF to max 20% (this spectrum 40)

14.01.2026 10:43 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Metabotims?

12.12.2025 07:34 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Applicability of wide-pore columns in reversed-phase liquid chromatography for human blood lipid profiling For the resolution of isomer-rich lipid extracts, it is a common practice during RPLC method development to evaluate column efficiency and mobile phasโ€ฆ

Our recent delivery for those in lipidomics community needing faster methods or dealing with buiky species. Enjoy!

www.sciencedirect.com/science/arti...

29.11.2025 08:44 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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tuna break

06.09.2025 05:53 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Lipids from 200 nL of breast milk sample with M3/IQX. Total 942 hits after removal of generic crap.

Not bad, but the problem is narrow inlet of IQX. Badly want to acquire the same thing on Ascend with HCCT.

22.08.2025 10:20 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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orbitrapping deep lipidomics at UNIL metabolomics platform with Julijana Ivanisevic

15.08.2025 15:42 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Our microflow-mnESI lipidomics article is finally out in Analytical Chemistry. For all those who wants better coverage, sensitivity or works with limited sample amounts.

Next chapter coming soon, stay tuned!

doi.org/10.1021/acs....

25.02.2025 16:42 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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A nice new toy in the lab! Can centrifuge thick-walled LCMS glass vials (available from vendor, also with surface treatment).

But Waters TrueView also work pretty well ;)

Time to play with interesting low-volume sample preps!

29.01.2025 11:57 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Hahaha, are u back to covid era?

14.12.2024 16:50 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

+

14.12.2024 16:38 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Snapshots from the lab. Xmas-2024 "just for fun" experiments end up in some very useful solutions. Contents of the shiny metal box to be revealed somewhen during the spring -)

14.12.2024 16:34 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Just YEET would be 1000x better

21.11.2024 12:06 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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