vialroom

#reconstitution 2025-03-02

Sunday38 messages7 participantstimes are UTC
Highlights from this day
  • two_ml_two — what do you do with the last 8 units when you cant draw them cleanly 18:54
  • abdo_two_inch — whats the smallest volume you would trust yourself to measure on a u100 19:48
  • two_ml_two — if i add 5ml to a 10mg vial what concentration am i actually at 19:57
RR

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

TF

it should be completely clear with no floaters. cloudy means stop

write the date on

📉38🧪15

anyone got a photo of what a properly dissolved vial looks like

yep 10 units

RR

bac water or sterile water for something im going into weekly for 7 weeks

TM

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

TM

took me a year to stop over-diluting. the measurement error at 4 units is worse than the convenience

TM

what do you do with the last 8 units when you cant draw them cleanly

🧪12📈3👀16

check your maths

thats 5mg/ml

AT

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

how do you all measure a half unit, or do you just not

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AT

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

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TM

label the date too. you will not remember which vial is which by week 10

thats fine

1

if i add 5ml to a 10mg vial what concentration am i actually at

🤝14🧪6🎉10

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

AT

aim the diluent at the glass wall, not at the powder. it goes in gentler

TS

gross powder mass is not net peptide. water and counterion are in that number, i could be wrong

TS

is the meniscus reading actually a real source of error or am i overthinking

NC

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

bac water

NC

pick the volume so your dose is a whole number of units. thats the entire trick

the last few units are a real loss. i accept it rather than tilting the vial and drawing air

dead space

5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose