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Offlinebadsponge
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No liquid passing through syringe filters
    #26827787 - 07/16/20 08:35 PM (3 years, 6 months ago)

Trying new LC lids for first time with 22nm syringe filters. I tried pulling water and LC from 3 different jars with 2 different syringes. I can't get any liquid to pass through, either pulling or pushing. Syringes work fine, air passes through filters, so...WTF am I doing wrong?



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OfflineDoyledozo
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827792 - 07/16/20 08:39 PM (3 years, 6 months ago)

If I'm not mistaken those filters are meant for GE. Liquids should be passed through the SHIP.


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Invisiblenatedawgnow
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827796 - 07/16/20 08:42 PM (3 years, 6 months ago)

Maybe they're clogged with myc. You're not supposed to aspirate lc through those filters.

Those are to filter solutions, people use them on lc jars as GE filters because
they dont allow liquid through except when forced but there's no way myc will
pass through one

I see a ship on your lid. Why did you add a ship if your intention was to try to
aspirate through the filter?


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Offlinebadsponge
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Re: No liquid passing through syringe filters [Re: natedawgnow]
    #26827805 - 07/16/20 08:49 PM (3 years, 6 months ago)

This is my first time using them after watching a video how to make them a couple months ago. I thought I remember the process was to suck out the LC through the syringe filter, and the SHIP was just for inoculating. So the filter is only for GE...huh. Damn I feel stupid now LOL.

Edit: What's the point of the luer lock on the filter then?


Edited by badsponge (07/16/20 08:51 PM)


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Invisiblenatedawgnow
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827809 - 07/16/20 08:54 PM (3 years, 6 months ago)

Nah the filter is for ge and the ship is for aspiration.

Seeing as you used the ship for inoculation I assume the lc is from spore?
You should use agar to noc up lc and you should lift the lid to drop the wedge in.

Technically pulling from a ship is outdated anyway. Ships get messed up over
multiple uses and contams can get pushed into the lc.


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Offlinebernardfraun
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827811 - 07/16/20 08:54 PM (3 years, 6 months ago)

"They can filter aqueous solutions after pre-wetting with an alcohol"


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OfflineGan
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827818 - 07/16/20 08:58 PM (3 years, 6 months ago)

Quote:

badsponge said:
Edit: What's the point of the luer lock on the filter then?




Because syringe filters are great for filtering some solutions. We use them a lot at work to filter certain buffers, solutions, or samples before particular analyses/assays at work. But, as you saw, they can get clogged up very easily.

Normally you don't use them to aspirate solutions. Instead, you pull the plunger out and load the solution in the syringe and then push it through the filter.


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Offlinebadsponge
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Re: No liquid passing through syringe filters [Re: natedawgnow]
    #26827829 - 07/16/20 09:02 PM (3 years, 6 months ago)

Quote:

natedawgnow said:
Nah the filter is for ge and the ship is for aspiration.

Seeing as you used the ship for inoculation I assume the lc is from spore?
You should use agar to noc up lc and you should lift the lid to drop the wedge in.

Technically pulling from a ship is outdated anyway. Ships get messed up over
multiple uses and contams can get pushed into the lc.




I nocced LC from agar with a syringe, but I ended up lifting the lid to drop in the myc anyway, not through the ship.

So how do you pull your LC out into a syringe without tilting and spilling it? The whole point of switching to these lids was to avoid that. I thought I was being so clever. I used to pour my LC but I'd always over pour.


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Invisiblenatedawgnow
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Re: No liquid passing through syringe filters [Re: natedawgnow]
    #26827832 - 07/16/20 09:03 PM (3 years, 6 months ago)

Quote:

natedawgnow said:
Maybe they're clogged with myc. You're not supposed to aspirate lc through those filters.

Those are to filter solutions, people use them on lc jars as GE filters because
they dont allow liquid through except when forced but there's no way myc will
pass through one

I see a ship on your lid. Why did you add a ship if your intention was to try to
aspirate through the filter?



As I said, theyre used to filter solutions. Why would you want to filter out the myc from your LC?

For LC jars they are used as ge filters


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Offlinebadsponge
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Re: No liquid passing through syringe filters [Re: Gan]
    #26827834 - 07/16/20 09:04 PM (3 years, 6 months ago)

Quote:

Gan said:
Normally you don't use them to aspirate solutions. Instead, you pull the plunger out and load the solution in the syringe and then push it through the filter.




Oh...I thought the lock meant I pull it from there.


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Invisiblenatedawgnow
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827841 - 07/16/20 09:06 PM (3 years, 6 months ago)

Quote:

badsponge said:
Quote:

natedawgnow said:
Nah the filter is for ge and the ship is for aspiration.

Seeing as you used the ship for inoculation I assume the lc is from spore?
You should use agar to noc up lc and you should lift the lid to drop the wedge in.

Technically pulling from a ship is outdated anyway. Ships get messed up over
multiple uses and contams can get pushed into the lc.




I nocced LC from agar with a syringe, but I ended up lifting the lid to drop in the myc anyway, not through the ship.

So how do you pull your LC out into a syringe without tilting and spilling it? The whole point of switching to these lids was to avoid that. I thought I was being so clever. I used to pour my LC but I'd always over pour.



You have to tilt, but since you used a syringe filter which is pretty much
water proof you can stick your needle in the ship and tilt til it hits liquid without
worrying about your filter getting wet.

Alternatively you can just free pour your LC just like g2g


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Offlinebadsponge
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Re: No liquid passing through syringe filters [Re: natedawgnow]
    #26827851 - 07/16/20 09:12 PM (3 years, 6 months ago)

Quote:

natedawgnow said:
You have to tilt, but since you used a syringe filter which is pretty much
water proof you can stick your needle in the ship and tilt til it hits liquid without
worrying about your filter getting wet.

Alternatively you can just free pour your LC just like g2g




OK, that clears up all my ignorance, thank you so much. I wanted to get away from free pouring bc I thought being precise with syringes would make my LC go farther. I always over poured.

BTW, congrats on your new TC badge! :thumbup:


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Invisiblenatedawgnow
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Re: No liquid passing through syringe filters [Re: badsponge]
    #26827869 - 07/16/20 09:24 PM (3 years, 6 months ago)

Thanks man and no problem!

There are a few no tilt lc teks on here if you dont want to pour in the future


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