clear or bin it
10mg vial
+ 1.0ml -> 10.0 mg/ml 0.5mg = 5u 1mg = 10u
+ 2.0ml -> 5.0 mg/ml 0.5mg = 10u 1mg = 20u
+ 2.5ml -> 4.0 mg/ml 0.5mg = 12.5u (dont)
+ 5.0ml -> 2.0 mg/ml 0.5mg = 25u 1mg = 50u#reconstitution 2025-06-01
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Highlights from this day
- swab_dry_first — unrelated but the meniscus thing is real. read it at eye level or you are guessing by a unit either way 20:45
- swab_dry_first — lyophilised powder is far more robust than people think. it is the solution that is fragile, ill dig out the number 20:48
- swab_dry_first — follow up it should be completely clear with no floaters. cloudy means stop 20:50
- VialBot — New independent result logged — SGN, lot H-2814, purity 98.6% (PeptideMeter). 21:26
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
swirl dont shake
quick one 15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it
[edited]label the vial
10mg vial
+ 1.0ml -> 10.0 mg/ml 0.5mg = 5u 1mg = 10u
+ 2.0ml -> 5.0 mg/ml 0.5mg = 10u 1mg = 20u
+ 2.5ml -> 4.0 mg/ml 0.5mg = 12.5u (dont)
+ 5.0ml -> 2.0 mg/ml 0.5mg = 25u 1mg = 50ulabel the date too. you will not remember which vial is which by week 31
it foamed. is it ruined
lot-log.csv
623 rows · not retained in the public archive
i have never once regretted using a rounder number and a slightly bigger volume
unrelated but the meniscus thing is real. read it at eye level or you are guessing by a unit either way
lyophilised powder is far more robust than people think. it is the solution that is fragile, ill dig out the number
site-rotation-map.png
1000 × 700 · 590 KB · not retained in the public archive
follow up it should be completely clear with no floaters. cloudy means stop
😂8🎉7🤝7
dead space in a standard insulin syringe hub is small but it is not nothing over a month
do you let it come to room temp before drawing or draw it cold
while im here the jewellery scale is a good habit but calibrate it, they drift badly
not sterile water
New independent result logged — SGN, lot H-2814, purity 98.6% (PeptideMeter).
i write the mg/ml on the vial with a sharpie the moment i reconstitute it
too dilute imo
do you draw up with the same pin you inject with
benzyl alcohol is what makes it bacteriostatic. it is about 0.9% typically