Qingdao Sigma Chemical Co., Ltd (International, US, EU, Canada and Australia domestic

These work good for oils


You can get them on eBay for reasonable price

Do you use a new vial or filter back to original vial?
 
Filter into a vial that complies with FDA particulate standards,

View attachment 310418
Considering how cheap relatively powerful microscopes are, it would a fairly cheap endeavor to filter a few vials from the major providers on MESO and optically observe the oils as well as anything filtered out, no? Is this something worthwhile to do or am I just missing the boat. @Ghoul @readalot

The fact that the photo you posted is only 60X kind of blows my mind, I could easily gather the materials to do that and then some.
 
New, sterile vial like these

I went with these and purchased my filters from them also

 
While people are on the subject t I had some PTFE syring filters that I have use the Before before but the other day I tried to use some because my regukar brand was out.. they turned the gear I was using very cloudy.. I stopped immediately and just filtered the gear with a bottle top into a media bottle.. crystal clear.. then I refiktered unto sterile vials when the other filters came in. The bad ones were brand
Biomed
I normally use brand
Pekybio
Just thought id throw that info out there for you guys.. both I get from Amazon
I have never used the cell treatment brand but I beleive they are suppose to be a good brand
 
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There are multiple people complaining about your lab. Is it my fault for posting in multiple threads (multiple people complaining)

 
These work good for oils


You can get them on eBay for reasonable price

Thanks the price was 47.00 yikes for 1 pair?
Anyways found same thing on Amazon for 39.00 (canadian) 27.00u.s per 100

Thanks again for the assistance in right direction

1000055223.webp
 
Thanks the price was 47.00 yikes for 1 pair?
Anyways found same thing on Amazon for 39.00 (canadian) 27.00u.s per 100

Thanks again for the assistance in right direction

View attachment 310434
Make sure it specific says they arr sterile! I uae these from Amazon and the do good.. I have had sterility testing performed on gear I filtered with them.. and the are a little cheaperScreenshot_20250104_181300_Amazon Shopping.webp
 
FYI, I don’t think those are sterile.

Sterile filters are always individually packaged.

This is another decent brand, and you should pick yourself up some 13mm .22um PES filters for your peptides. Not just for particulates, but to reduce the number of aggregates to prevent immunogenicity and minimize the risk of, god forbid, hitting the "peptide horror lottery" of a self replicating misfolded protein from lodging in your brain and saddling your relatives with a drooling version of yourself with a destroyed mind.

 
FYI, I don’t think those are sterile.
Seriously asking, does it truly matter if the syringe filter itself is sterile?

On one end of the filter you connect it to the syringe tip containing non-sterile fluid.

On the other end you have a sterile needle poking into the vial's rubber stopper.

So long as the fluid goes through the filter and into the needle wouldn't it be guaranteed that everything flowing in the vial is sterile?

I have never used a syringe filter so IDK.
 

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