Whatman Rezist Filter 30 G92/PP Pack of 500

£692.00 excl. VAT
£830.40
incl. VAT

SKU - 1131182

10463545

SKU -

1131182

Order now for 7 day delivery

Description
Compatibility

The Whatman ReZist range of syringe filters has been specifically designed to be resistant to organic solvents. These filters are ideal for the clarification of aggressive organic solvents. ReZist 30mm filters can also be used as a venting filter for small vessels.

ReZist for HPLC Sample Preparation Features

Hydrophobic PTFE membrane is laminated with polypropylene
13mm diameter with Mini-Tip
13mm diameter with extremely low dead volume <10µl

Benefits

Excellent chemical resistance against standard organic HPLC solvents
13mm diameter with Mini-Tip outlet is ideal for filtration into very small sample bottles
Permits optimal utilization of small sample volumes

ReZist for Air Venting Features:

Integral, permanently hydrophobic PTFE membranes
Polypropylene support

Benefits:

Extremely high chemical resistance

Guide to…Syringe Filter Properties

Identifying the filter material most suitable for your application based upon the nature of the liquid or gas you are filtering will ensure the best performance of your filter. Each syringe filter contains a membrane filter of a set diameter and plastic housing with luer connections used for connecting to syringes (or in-line hosing systems).

The membrane filter material has differing chemical and physical properties such as hydrophobicity, flow rate, extractables and protein retention making them suited to differing applications. Once you have selected the most compatible filter material, you will need to consider what pore size is most appropriate for your application and what diameter filter is suitable for your sample volume.

Membrane Material

Membrane Material	Protein binding	Hydrophilic/Hydrophobic	Chemical resistance	Applications
Hydrophilic PTFE	Low	Hydrophilic	High	Purification of HPLC organic and solvent/aqueous solutions
Hydrophobic PTFE	Low	Hydrophobic	High	Filtration of solvents
PES	Low	Hydrophilic	Low/Medium	Purification of tissue culture solutions, buffers
PVDF	Low	Hydrophilic	Medium	Filtration of protein solutions
NYL	Medium	Hydrophilic	Medium	Filtration of aqueous and solvent/aqueous mixtures
CA	Low	Hydrophilic	Low	Filtration of protein solutions
CN	High	Hydrophilic	Low	Filtration of aqueous solutions where protein binding is not a concern and microbioloigical applications.
RC	Low	Hydrophilic	Medium	Filtration of aqueous and organic solvents and protein recovery applications.

Filter diameter

High particulate loaded samples with tend to block the pores in the membrane more quickly so the total volume you can filter through a certain diameter syringe filter will vary greatly. Please take the below figures as a guide only.

13mm diameter - for samples <10ml
25mm diameter - for samples <100ml
33mm diameter - for samples <250ml

For samples that are very particle ladden, it is recommened that you try pre-filtering your sample. Pre-filtering can be achieved with a number of different filters, such as glass microfibre. Some syringe filters come with an in-built pre-filter.