Those were the days!
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stolid_agnostic, lol lol let me suck up this salmonella sample real fast
state_electrician, Uh, yeah, suck it, pipet boy.
quiterather, I thought they were sipping pee to test for diabetes 😋😌
atocci, ![]()
Look how long their fancy straws are! I bet they keep chemicals a safe distance away from possible ingestion!
CouncilOfFriends, I’m wondering if a crazy straw was tested…for safety
chemicalprophet, DON’T MOUTH THE PIPET!!!
PotatoesFall, Explanation? Are these guys huffing ether or something?
Quereller, They pipette by mouth, which is not very safe.
stolid_agnostic, Basically it took many years before someone developed something that could be run with a trigger or button. Before that you used a vacuum (your mouth) to pull liquid into a pipette. Heard an older chemistry professor talk about a colleague who years before swallowed a salmonella sample by accident. A lot of people surely got hurt this way.
hexthismess, ![]()
They are using their mouths to suck liquids into pipettes. It was an old and dangerous lab technique.
mexicancartel, Then how are we supposed to do that?
hexthismess, ![]()
Use a rubber bulb on the end of the pipette. That way your cartel members lab techs are safe.
mexicancartel, We still use mouth in secondary school. I guess its same in undergraduate degree too. But yeah we only take the base in acid-base titration in pipette
ProfessorOwl_PhD, ![]()
Jesus Christ. 20 years ago my chem teacher used to tell me about the bad old days of having to do this, that it’s still happening today is horrifying.
TonyTonyChopper, ![]()
definitely not standard procedure here in the US. And basic solutions can be more dangerous than acids.
mexicancartel, I guess they only gjve non toxic bases for school
RootBeerGuy, ![]()
I am a bit concerned everyone is just mentioning the squeeze rubber ball thing, maybe because its time appropriate for the images.
But in modern times people should use something like this www.integra-biosciences.com/…/pipetboy-acu-2
mindbleach, That’s the worst squirtgun ever.
funkless_eck, not a scientist but I’m guessing they are siphoning some chemical by sucking up a small amount in the tube to transfer it to another container
HonkTonkWoman, Aww, I thought they were blowing bubbles. Looked like fun.
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