Positions 26–50 of 130.
the units rule is doing its job and people should stop complaining. Short post, long comment section, probably. Research-use-only material is not approved for human…
can we stop arguing about dead space until somebody posts a number. I would rather ask a basic question now than get this wrong quietly for two months. Adding more…
does mg/mL actually matter or is it forum lore at this point. If this has been answered properly somewhere, link me and I will delete. The failure modes I have actually…
Genuine question, and the title is the question: does bacteriostatic water actually matter or is it forum lore at this point. Asked JEEP what volume they reconstitute…
Vendor-level purity averages over time, built from independent results rather than vendor claims. Transparent methodology, open dataset.
Browse resultsHousekeeping: proposal — a flair for concentration posts. The failure modes I have actually seen posted here, in order of frequency. One: reconstituting at a different…
unpopular opinion: most of what gets said here about insulin syringe is guesswork — a position I have arrived at slowly and would like tested. Aim the stream down the…
how much of what we believe about mg/mL actually comes from insulin syringe threads, and I want the answer with the reasoning attached rather than just the conclusion.…
Genuine question, and the title is the question: how much of what we believe about units actually comes from dead space threads. Spent 12 weeks confused about this…
genuine question about insulin syringe that I am slightly embarrassed to ask. I am not trying to be the "source?" guy. I would just like a source. The whole…
genuine question about concentration that I am slightly embarrassed to ask. If this has been answered properly somewhere, link me and I will delete. The failure modes I…
The title is the argument: unpopular opinion: most of what gets said here about bacteriostatic water is guesswork. Here is the rest of it. Started reconstituting…
Posting this as a discussion rather than a claim: the units question that gets asked weekly, answered properly. Shook the first vial because nobody told me not to. It…
how much of what we believe about bacteriostatic water actually comes from dead space threads. If this has been answered properly somewhere, link me and I will delete.…
three years of mg/mL threads, summarised so you do not have to read them — a position I have arrived at slowly and would like tested. Why "more water" keeps confusing…
Posting this as a discussion rather than a claim: we are measuring concentration at the wrong time and calling it noise. Why "more water" keeps confusing people,…
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standardsthree years of dead space threads, summarised so you do not have to read them. Not a hot take, just something I have not seen said plainly here. Adding more water does…
Asking properly rather than in a comment on somebody else’s thread: help me understand concentration, I have read the wiki twice. Shook the first vial because nobody…
we are measuring bacteriostatic water at the wrong time and calling it noise. It is the sort of thing everyone half-believes and nobody writes down. Adding more water…
The title is the argument: units are doing more work than we give it credit for. Here is the rest of it. Started reconstituting everything to a round concentration and…
why does nobody talk about concentration. Searched first, found three threads that contradict each other, hence the post. Wrote the date on the vial as well as the…
why does nobody talk about dead space. I would rather ask a basic question now than get this wrong quietly for two months. Wrote the date on the vial as well as the…
three years of concentration threads, summarised so you do not have to read them — a position I have arrived at slowly and would like tested. Why "more water" keeps…
mg/mL — 16 things I got wrong before I got it right. Not a hot take, just something I have not seen said plainly here. Wrote the date on the vial as well as the…
The title is the argument: bacteriostatic water is doing more work than we give it credit for. Here is the rest of it. Started reconstituting everything to a round…
Thinking out loud about this: the units thing finally clicked for me and I want to write it down. If your calculation produces a fraction of a unit, the concentration…
The arithmetic and the technique. Bacteriostatic versus sterile water, reconstitution volume as a concentration choice, converting mg/mL into insulin-syringe units, dead space, swirl-not-shake, stopper coring, and how long a reconstituted vial is actually good for. Math errors get corrected fast and politely.
Independent HPLC and mass spec. The number you get is the number they found.
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Reference