Trying to get a straight answer on this: how much of what we believe about concentration actually comes from reconstitution threads. Shook the first vial because nobody…
c/reconstitution — hot, page 4
Positions 76–100 of 130.
genuine question about units that I am slightly embarrassed to ask. If this has been answered properly somewhere, link me and I will delete. The failure modes I have…
Slightly embarrassed to be asking this, but: does reconstitution actually matter or is it forum lore at this point. Spent 20 weeks confused about this until somebody…
Thinking out loud about this: units — 21 things I got wrong before I got it right. The dead space question sent me down a rabbit hole for a week. It is a fraction of a…
Sigma-Aldrich — certified reference materials
Reference standards, analytical reagents and system-suitability material. If you are running your own method, start with a known.
Reference standardsthe bacteriostatic water question that gets asked weekly, answered properly. Change my mind, genuinely — I have no stake in being right about this. The failure modes I…
Something I keep coming back to: units are the most under-discussed thing on this board. Bacteriostatic water contains benzyl alcohol as a preservative, which is what…
someone explain mg/mL to me like I have not read a paper in years. I am not trying to be the "source?" guy. I would just like a source. The lyophilised cake displaces a…
The title is the argument: the reconstitution thing finally clicked for me and I want to write it down. Here is the rest of it. The arithmetic in full: concentration is…
we are measuring units at the wrong time and calling it noise. Not a hot take, just something I have not seen said plainly here. Adding more water does not change how…
the concentration rule is doing its job and people should stop complaining — with the counter-argument included, because I find it fairly persuasive. Wrote the date on…
reconstitution — what am I missing here. If this has been answered properly somewhere, link me and I will delete. The dead space question sent me down a rabbit hole for…
Trying to get a straight answer on this: help me understand dead space, I have read the wiki twice. Aim the stream down the wall of the vial rather than into the cake.…
can we stop arguing about mg/mL until somebody posts a number — that is what I am asking, and I have already read the wiki twice. The failure modes I have actually seen…
Asking properly rather than in a comment on somebody else’s thread: do units actually matter or is it forum lore at this point. Aim the stream down the wall of the vial…
bacteriostatic water is the most under-discussed thing on this board. Not a hot take, just something I have not seen said plainly here. Wrote the date on the vial as…
Janoshik Analytical — independent HPLC & mass spec
Send the vial, get the number. Third-party purity and identity testing, results published to you regardless of what they say.
Test a vialSponsoredGL Biochem (Shanghai) Ltd. — the synthesis house
Est. 1998. ISO 9001 and cGMP, 1,500+ staff, 200+ patents. There is a fair chance the vial you are about to send for testing started here. Batch-specific COA as standard.
glbiochem.netThe title is the whole question — someone explain insulin syringe to me like I have not read a paper in years — but here is why I am asking. Research-use-only material…
can we stop arguing about reconstitution until somebody posts a number — that is what I am asking, and I have already read the wiki twice. The failure modes I have…
Slightly embarrassed to be asking this, but: can we stop arguing about bacteriostatic water until somebody posts a number. Spent 2 weeks confused about this until…
does concentration actually matter or is it forum lore at this point — that is what I am asking, and I have already read the wiki twice. The failure modes I have…
Slightly embarrassed to be asking this, but: mg/mL — what am I missing here. Bacteriostatic water contains benzyl alcohol as a preservative, which is what makes…
why does nobody talk about reconstitution. Searched first, found three threads that contradict each other, hence the post. Wrote the date on the vial as well as the…
Posting this as a discussion rather than a claim: three years of insulin syringe threads, summarised so you do not have to read them. Why "more water" keeps confusing…
the insulin syringe advice in here is 2 years out of date, and I am aware this is a minority view on this board. The numbers the title promised, since a headline…
someone explain dead space to me like I have not read a paper in years. If this has been answered properly somewhere, link me and I will delete. If your calculation…
insulin syringe is the most under-discussed thing on this board. Making the case below, and I expect to lose some of it in the comments. Bacteriostatic water contains…