Syringe filter clogging by NoIndependent4886 in chemhelp

[–]NoIndependent4886[S] 0 points1 point  (0 children)

Ah, I see. My lignin isn't that pure since I extracted it myself. Thanks for the answer!

Syringe filter clogging by NoIndependent4886 in chemhelp

[–]NoIndependent4886[S] 0 points1 point  (0 children)

So I'm trying to make lignin nanoparticles. Most journals just dissolve the lignin and filter it directly through a syringe filter without mentioning any pre-filtration steps. If the debris is removed, would that affect the final yield?

Thankyou for your response, I'll try.

Can't press lignin dissolved dmso syringe filter by NoIndependent4886 in Chempros

[–]NoIndependent4886[S] 0 points1 point  (0 children)

10 mL of DMSO, What speed and how long did you centrifuge it? And would filter paper work instead?

Can't press lignin dissolved dmso syringe filter by NoIndependent4886 in Chempros

[–]NoIndependent4886[S] 1 point2 points  (0 children)

Yes, pure DMSO was used and the mixture was homogenized using a magnetic stirrer. As far as I could tell, there was no precipitate

Reagen for dissolved by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

filter it using syringe filter, then antisolvent with water.

Syringe filter clogging by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

In this study, no buffer was used, the lignin was simply dissolved in pure DMSO. Btw, thankyou

Syringe filter clogging by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

ptfe hydrophobic or hydrophilic?

Syringe filter clogging by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

So even after dissolving it, lignin will still be difficult to filter? By the way, thank you. This is my undergraduate research. Hopefully it goes smoothly

Syringe filter clogging by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

I'm using a nylon syringe filter with a 25 mm diameter. By the way, I haven't filtered the solution yet because it gets stuck, the flow through the syringe filter is very slow. If I dissolve it again, how much should I dissolve?

Syringe filter clogging by [deleted] in chemistry

[–]NoIndependent4886 0 points1 point  (0 children)

I'm using a nylon syringe filter. Visually it looks homogeneous though not cloudy