vialroom

#reconstitution 2024-04-27

Saturday35 messages9 participantstimes are UTC
Highlights from this day
  • gradient_greg — update from 9 months ago: switched to a single concentration and have not miscalculated since, still working it out 21:56
  • gradient_greg — quick one does temperature of the bac water matter at all 22:03
  • gradient_greg — 30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right, n of 1 obviously 22:13
  • lot_number_lou — whats the smallest volume you would trust yourself to measure on a u100 22:19
  • gradient_greg — right so if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration 22:50
TT

label the date too. you will not remember which vial is which by week 34, ask me again in a month

20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy

thats 5mg/ml

right so my vial pulled the water in on its own, is that the vacuum or did i do something

CC

temperature of the diluent does not matter. how fast you push it in does, we shall see

SO

quick one if i add 3ml to a 15mg vial what concentration am i actually at

10mg in 2ml is 5mg/ml. so 0.5mg is 0.1ml which is 10 units on a u100

yep 10 units

if the maths gives you 13.7 units, change the volume. do not try to hit 13.7

quick one does temperature of the bac water matter at all

😂2
AO

i write the mg/ml on the vial with a sharpie the moment i reconstitute it

gross powder mass is not net peptide. water and counterion are in that number

30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right, n of 1 obviously

[edited]
LN

whats the smallest volume you would trust yourself to measure on a u100

janoshik-a-2601.pdf
2 pages · 897 KB · not retained in the public archive

thats the vacuum

you can absolutely just always use 2ml, and honestly most of us should

if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space

it foamed. is it ruined

right so if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration

👍1
SO

i keep a spare vial of bac water in the fridge purely so i never rush the maths

CC

i was wrong about this last year: it is fine to draw cold, it just stings more going in

ST

nobody here should be telling you a dose. we can check your arithmetic, thats a different thing

thats fine

*that should say weekly