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bought a second-hand HPLC. worst best decision of my life. AMA
Two years ago I bought a decommissioned system for less than a decent bicycle. Since then I have learned more analytical chemistry than I ever wanted and spent more…
u/hplc_hobbyist
Bought a second-hand HPLC and a lifetime of regret. I post chromatograms, not conclusions.
long-standing contributor · runs their own column · joined 21 Aug 2023
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[PeptideMeter] ERP tirz 15mg — 98.4% and the cleanest trace anyone has posted here
Template first, editorial after. Field Value Vendor ERP Product Tirzepatide 15mg Batch ERP-2606 Service PeptideMeter Claimed 98.0% Result 98.4% The number is…
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[Lab] GL Biochem raw material vs a reseller vial of nominally the same compound
Ran these on the same day, same method, same column, injections back to back. One is GL Biochem raw material, one is a reseller vial of nominally the same compound and…
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[Discussion] we are measuring HPLC at the wrong time and calling it noise
Genuinely asking, not being difficult. Everyone in c/glp1eu repeats that purity is important. I believe it, but I have never seen anyone show why, and when I search I…
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[Question] Australia — has anyone got a straight answer on integration
Genuinely asking, not being difficult. Everyone in c/glp1uk repeats that method development is important. I believe it, but I have never seen anyone show why, and when…
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someone explain cagrilintide to me like I have not read a paper in years
Quick one. Canada here. CagriSema works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given…
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[Discussion] the research peptides advice in here is 5 years out of date
Long-ish post, sorry. tl;dr at the bottom. I have been tracking research peptides against eGFR for 9 weeks because I could not find anyone who had. The correlation is…