Comment on Those were the days!
hexthismess@hexbear.net 11 months agoThey are using their mouths to suck liquids into pipettes. It was an old and dangerous lab technique.
Comment on Those were the days!
hexthismess@hexbear.net 11 months agoThey are using their mouths to suck liquids into pipettes. It was an old and dangerous lab technique.
mexicancartel@lemmy.dbzer0.com 11 months ago
Then how are we supposed to do that?
hexthismess@hexbear.net 11 months ago
Use a rubber bulb on the end of the pipette. That way your
cartel memberslab techs are safe.mexicancartel@lemmy.dbzer0.com 11 months ago
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@hexbear.net 11 months ago
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@mander.xyz 11 months ago
definitely not standard procedure here in the US. And basic solutions can be more dangerous than acids.
covert_czar@lemmy.dbzer0.com 11 months ago
Now you know
RootBeerGuy@discuss.tchncs.de 11 months ago
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@sh.itjust.works 11 months ago
That’s the worst squirtgun ever.
girl@lemm.ee 11 months ago
I love my drummond, if only it came in cool transparent colors too 🥲
ivanafterall@kbin.social 11 months ago
We use drinking straws. You just do the "tap the top opening of the straw really fast" trick and it sucks the medicine right up.
HubertManne@kbin.social 11 months ago
rubber bulb. its a bit like the end of an eye dropper if you ever used the old fashioned kind. The modern ones are actually sorta complex where you can let go and the liquid will stay inside and you press an area near the kneck which will release the vacum. back in those days it was just a bulb and a bit frustrating to use so they did this dangerous technique.
JoBo@feddit.uk 11 months ago
With a squeezy rubber bulb thingy.