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Dr. Steph Walker

@stephwalker.bsky.social
367 followers 226 following 32 posts

Isotope Geochemist. Voracious reader. TIMS tinkerer and garnet aficionado. She/her. 🚲

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Dr. Steph Walker @stephwalker.bsky.social · 03/09/2025
We’re looking for a stable isotope geochemist to run our IRMS lab here in beautiful Cornwall! Interested or know someone who might be? Please reach out! www.jobs.ac.uk/job/DOO041/t...
jobs.ac.uk
Technical Specialist at University of Exeter
Apply for the Technical Specialist job on jobs.ac.uk, the top job board for professional services positions in higher education.
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Dr. Steph Walker @stephwalker.bsky.social · 19/05/2025
Maybe I should start running hafnium so I feel better about my post-TIMS world 😂
Graph of neodymium isotope values from my new MC-ICPMS. Pretty scattered values compared to very stable TIMS analyses.
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Dr. Steph Walker @stephwalker.bsky.social · 21/03/2025
Faraday Friday!!
A faraday “bucket” collector being held in a blue gloved hand with tin foil in the background.
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Dr. Steph Walker @stephwalker.bsky.social · 14/03/2025
First tantalising glimpse of the plasma earlier this week. Hopefully we’ll get an ion beam next week, but very pleased with the progress so far. So excited for the cool research we can do with this.
Lit plasma on a Sapphire mass spectrometer glimpsed through the torch box window.
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Dr. Steph Walker @stephwalker.bsky.social · 10/03/2025
Happy new mass spec day to all who celebrate 🥹
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Dr. Steph Walker @stephwalker.bsky.social · 06/02/2025
I miss lab work 😭
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Reposted by Dr. Steph Walker
Lisa Davidson @lisabdavidson.bsky.social · 23/11/2024
Wow, this is some totally esoteric naming, even for Trader Joe’s.
Avocado’s Number Guacamole from Trader Joe’s
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Dr. Steph Walker @stephwalker.bsky.social · 14/11/2024
Crossing into the Thermo dark side this week at Cardiff Uni! 🥲
Two computer screens showing a program that runs a Thermal Ionisation Mass Spectrometer
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Dr. Steph Walker @stephwalker.bsky.social · 18/10/2024
Ok UK isotope folks: do you have a clean lab? Do you have polypropylene laminar flow exhausting fume cupboards? Where did you get them??
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Dr. Steph Walker @stephwalker.bsky.social · 06/03/2024
Me, running a 4ng NdO standard at 2.5V for over 50 dynamic cycles: I am a GOD, bow before me 😤 Me, accidentally leaving the filament ramped up and the LOS open over night: ah ffff 🤡 (That’s hubris, kids 🫠)
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Dr. Steph Walker @stephwalker.bsky.social · 28/02/2024
Running one column today because I love pain apparently.
A single column in a clear rack. The lab space is white and there are reagent bottles around.
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Dr. Steph Walker @stephwalker.bsky.social · 09/01/2024
After no papers published last year (😅) it’s my second day back to work today and I have 2 drafts in my inbox already! Sometimes hard work takes a while to come to fruition, I guess!
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Reposted by Dr. Steph Walker
Crystal Frasier @amazonchique.bsky.social · 25/12/2023
"Your future is a horror story written by your crimes," is such an absolute A+ literary line that you'd be forgiven for forgetting it comes from the Muppets.
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Dr. Steph Walker @stephwalker.bsky.social · 01/12/2023
Got ID’d buying a bottle of wine just now and when the guy behind the counter saw it he said “1991?! Oh wow, I’m sorry” Nah mate, you’re good! 😂
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Dr. Steph Walker @stephwalker.bsky.social · 03/11/2023
Me two weeks ago: OMG 15 pages for this proposal is so much, I’ll never be able to fill them! Me now: fuck fuck fuck I need to ✂️
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Dr. Steph Walker @stephwalker.bsky.social · 26/10/2023
Been thinking about naming the TIMS’ now we have two… is it too dark to put a sign above the door saying “abandon hope all ye who enter here” and call them Dante and Virgil?
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Dr. Steph Walker @stephwalker.bsky.social · 19/10/2023
Trying to set up Extremely Small NdO runs on the TIMS. 30mV beam sizes on 100pg… thinking to myself: should I even be using the faradays for this? 🤔
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Dr. Steph Walker @stephwalker.bsky.social · 07/10/2023
‘New’ TIMS is getting its one-year check-up from Isotopx. Been having some issues with the analyser vacuum so she’s all tucked in and having a toasty nap 😴
A thermal ionisation mass spectrometer covered in reflective covers as it ‘bakes’ to improve the vacuum.
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Dr. Steph Walker @stephwalker.bsky.social · 07/10/2023
Left my PlayStation downloading the new Assassin’s Creed game before coming into the lab today. I can’t wait to be done so I can go play 🥲
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Dr. Steph Walker @stephwalker.bsky.social · 04/10/2023
You wouldn’t think it would be hard to convince people to NOT COME TO WORK when they’re ill with a fever and cough in 2023 but here we are! 🫠
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Dr. Steph Walker @stephwalker.bsky.social · 29/09/2023
TIL the TIMS has a maxes out at 100V 🥲
Outputs from a TIMS showing 100V on the High2 collector
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Reposted by Dr. Steph Walker
Steve Wang @stevewang251.bsky.social · 25/09/2023
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Dr. Steph Walker @stephwalker.bsky.social · 24/09/2023
A problem with being a Brit with a book of NYT crosswords is having different words for things: “Ball of material for a cat (4)” 🇬🇧 = wool 🇺🇸 = yarn
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Dr. Steph Walker @stephwalker.bsky.social · 24/09/2023
Glad to be out of the X hellscape. Looking forward to meeting all the Early-adopter Geos on here!
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