Certificates of analysis, third party testing, HPLC, and purity discussion.
Posted by ambernotes
Hey everyone. I am looking at a few recent certificates of analysis from different independent labs for some bpc material and I noticed something interesting. Some labs report purity purely on peak a…
Posted by ahmad
When comparing research-peptide suppliers, it is easy to focus on one number: the advertised purity percentage. But a serious supplier evaluation requires more than seeing “99%+ purity” on a product…
Posted by vialclub
I just got a quote back from an analytical lab for batch purity verification and I honestly thought it was a typo. They want almost triple what they charged me last year for a standard HPLC analysis…
Posted by quietfox94
Hey everyone, just wanted to share some good news. I've been really stressing about a recent batch of a research compound I got. You know how it is, you want to make sure everything is on the up and…
Posted by echoroom67
So, another day, another COA to decipher. I swear, sometimes I feel like I need a Rosetta Stone just to understand these things. I'm looking at a mass spec result for a new batch of a research compou…
Posted by vialfiles
Hey everyone, I have been thinking a lot about COAs lately. I know we all rely on vendor provided certificates of analysis, but has anyone here actually gone through the process of getting their own…
Posted by titrationclub
Man I am so frustrated right now. I sent out samples from two different vendors for third party purity testing. Same compound, same batch numbers, everything should be identical. But the results came…
Posted by rust_pdx86
Okay so I have been seeing a lot of talk about COAs and purity testing lately. Everyone says you absolutely need them, it is the only way to know what you are getting. But honestly, how much can we r…
Posted by kineticx
Hey everyone, I see a lot of new researchers asking about COAs and what to look for. It can seem a bit overwhelming at first, but it is really important for ensuring the quality of your research comp…
Posted by coldworks95
Hey everyone just wanted to share some good news. I got the COA for my latest batch of research compound X and it is looking really really good. Like 99.8 percent purity good. I am so excited to star…
Posted by saltwatch
Hey everyone, just got my first order in for some research compounds. Super excited to start some new projects. I see a lot of talk about COAs and purity testing and wanted to get a better understand…
Posted by compoundhands26
Seriously, I just got a new batch of a peptide for research and the COA is just... minimal. Like, barely any detail. I know we are all doing research here, but it feels like some suppliers just slap…