#lab-requests 2025-11-15

Saturday42 messages9 participantstimes are UTC

Highlights from this day

ring_size_down — coming back after 6 months, is the submission process the same 21:27
acetate_ash — including a reference standard in the batch is the single best thing we ever added to this process 21:35
taper_or_not — PeptideMeter has been the fastest for us. VendorInvestigate has been the most detailed. those are not the same lab 22:32

ring_size_down 21:27

coming back after 6 months, is the submission process the same

❤️11👀7😂13

we have never had a lab mix up a sample. we have had members mix up their own labelling twice

acetate_ash 21:32

publish the raw

including a reference standard in the batch is the single best thing we ever added to this process

💀11📉11📈1

coordinating this round

✅8

i keep half the sample back so there is something to send if the first one goes missing

ring_size_down 21:39

chain of custody in hobby testing is weak and we say so in every writeup

👍3

acetate_ash 21:42

do not send your only vial. that has happened twice and both times it hurt, not advice obviously

🧊4🔥1📉1

ring_size_down 21:46

if you want to know about your vial, you have to submit your vial. that is the whole answer
powder if you can. reconstituted travels worse and adds a variable we cannot control

endotoxin_edlab21:50

a code and a lot number on the syringe in permanent marker. that is the whole labelling requirement

turnaround has been between 9 days and twice that depending on the queue

ring_size_down coming back after 6 months, is the submission process the same

endotoxin_edlab21:54

can i add a second lot to the same submission
update from 11 months ago: the blinding process is unchanged and it has held up fine

acetate_ash i keep half the sample back so there is something to send if the first one goes missing

fake_tracking 21:55

quantity is the test worth paying for. purity is usually fine and fill usually is not

how many people do we need before the split is worth it

queue_position 21:59

are we blinding this one or does the lab know the source

submissions go out blinded. the lab gets a code, not a supplier name. that removes one variable, it is not distrust

taper_or_not 22:04

the split works from about 5 people. below that everyone pays more than the test is worth

we do not help with wording beyond that and the mods are strict about it

[edited]

how do we stop the pool telling us about the pool instead of my vial

*PeptideMeter not the other one

we publish the raw report. summaries hide the thing you needed to see

update from 12 months ago: the blinding process is unchanged and it has held up fine

add a standard

bea_reconstitutes 22:22

blinded obviously

taper_or_not 22:23

quick one i would rather fund one careful quantity test than three purity tests

code not name

the queue is posted and updated. if your code is not on it, it did not arrive

PeptideMeter has been the fastest for us. VendorInvestigate has been the most detailed. those are not the same lab

💀9🧪4

*Medutest not the other one

acetate_ash 22:36

declare it as an analytical reference sample with a low value. that is what it is

HPLC_Hanklab22:42

a pooled result tells you about the pool. it does not tell you about your vial

HPLC_Hanklab22:48

roughly one sample in 3 rounds has gone missing in transit. budget for it emotionally
VendorInvestigate has been the fastest for us. Medutest has been the most detailed. those are not the same lab

queue is posted

keep half back

count me in

powder if you can. reconstituted travels worse and adds a variable we cannot control

dont send your only vial

🧊1📈6🔥3

HPLC_Hanklab23:09

two labs on the same lot is a luxury but it is how we learned what inter-lab variance looks like