PeptideStack
5.2kquestions
20kanswers
220users

If I reconstitute a 15 mg vial with 1.5 mL of phosphate-buffered diluent, what concentration do I end up with?

Asked 8 Jun 2025Modified 14 months agoViewed 9.1k times
24

The specifics, since they change the answer: 15 mg · 1.5 mL · phosphate-buffered diluent.

I would like the arithmetic checked rather than the conclusion asserted.

I have deliberately not used an online calculator because I want to be able to check the result.

Can someone show the working rather than just the answer?

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
shareeditfollowflag
TM
askedthabo_maseko28k388 Jun 2025

No answers yet

This question has not been answered. It has been viewed 9.1k times, which suggests the question is of interest and the answer is not obvious. If you can answer it with a source or a worked calculation, it will be read. See how to ask and answer.
Sponsored

Sigma-Aldrich - Certified Reference Materials

Analytical standards and reagents with traceable certificates. Every quantitative result you read inherits the accuracy of the standard behind it.

Shop standards

Your answer

Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.

Not medical advice. Research-use-only compounds are not approved for human use.