Labfil PTFE Hydrophobic Syringe Filters Non-Sterile 100pcs/pk

Description

PTFE hydrophobic syringe filters are applicable for filtration of gaseous or organic solvent-based samples. The natural hydrophobic membrane exhibits broad chemical resistance and unsurpassed temperature stability to address aggressive sample matrixes and extreme temperature situations. Due to the membrane’s hydrophobic nature, PTFE filters can be utilized as a moisture barrier in venting applications.

Technical Data

Materials	Housing	PP
	Membrane	PTFE	(Polytetrafluoroethylene)
	Wettability	Hydrophobic
Physical Properties	Pore Size	0.22 μm, 0.45 μm
	Filter Diameter	13mm	25mm	33mm
	Filtration Area	0.72cm²	3.4cm²	4.5cm²
	Maximum Operating Pressure	6bar	3bar	2bar
	pH Range	1.0 – 14.0

Product Information

SKU	Material	Pore Size	Diameter(mm)	Sterile	Printing	Outer Ring Color	Packaging
C0000646	PTFE Hydrophobic	0.22um	13	NO	YES	Pink	100pcs/pk.
C0000647	PTFE Hydrophobic	0.45um	13	NO	YES	Red	100pcs/pk.
C0000648	PTFE Hydrophobic	0.22um	25	NO	YES	Pink	100pcs/pk.
C0000649	PTFE Hydrophobic	0.45um	25	NO	YES	Red	100pcs/pk.
C0000666	PTFE Hydrophobic	0.22um	33	NO	YES	Pink	100pcs/pk.
C0000667	PTFE Hydrophobic	0.45um	33	NO	YES	Red	100pcs/pk.

Features

Excellent chemical resistance for use with organic matrices.
* Naturally hydrophobic membrane provides excellent flow rates and high loading capacities.
* Exceptional temperature stability.
* Organic solvent recommended.

Chemical Incompatibilities
* Perchloric acid
* Methylene chloride (limited exposure)
* Dioxane, DMF, formic acid >50%
* Aqueous-based sample matrix (unless filter is pre-wetted with an alcohol)

Application

* HPLC and organic solvent sample preparation and clean up.
* Dissolution sample analysis.
* General sample preparation prior to analytical analysis.
* Elevated temperature samples, caustic or acidic solutions.

Select by Sample Volume

Sample Volume	Filter Diameter	Filtration Area	Hold-up Volume	Retention Volume
< 10mL	13mm	0.72 cm²	< 25μl	< 25mL
10mL to 100mL	25mm	3.4 cm²	< 100μl	< 100mL
100mL to 200mL	33mm	4.5 cm²	< 125μl	< 125mL

Select by Pore Size

Cleaning Operation	Optimal Pore Size
Sterile Filtration	0.20 µm
Thorough Cleaning	0.45 µm
Clear Filtration	1 - 2 µm
Pre-Filtration	5 µm

Select by Diameter

Filter Diameter	Volume to be Filtered
4 mm	< 1 ml
13 mm	1 - 10 ml
25 mm	10 - 100 ml
30 mm	> 100 ml (fast filtration)

Select by Pressure of Syringe Volumes

Syringe Volume	Pressure Bar / PSI
1 ml	10 / 150
3 ml	7.0 / 100
5 ml	5.0 / 75
10 ml	3.5 / 50
20 ml	2.0 / 30

How to use a syringe filter?

1. Select the Right Filter:
Membrane Type: Ensure compatibility with your sample (e.g., PTFE for organic solvents, PES for aqueous solutions).
Pore Size: Choose the appropriate pore size (commonly 0.22 µm or 0.45 µm).

2. Prepare the Syringe:
Attach the syringe filter to the syringe securely.
Ensure both are sterile if required.

3. Draw the Sample:
Fill the syringe with the sample, avoiding air bubbles.

4. Filter the Sample:
Hold the syringe with the filter attached.
Press the plunger gently to pass the sample through the filter into a clean container.

5. Post-Filtering:
Ensure the entire sample has been filtered.
Dispose of the used filter according to your lab’s guidelines.

Tips:
Apply steady pressure to avoid damaging the filter.
Pre-filter or centrifuge samples if clogging occurs.

Related Resource

1. What Is a Syringe Filter Used For? A Comprehensive Overview

2. Understanding PTFE Syringe Filters: Applications and Advantages in Laboratory Practice

3. Differences Between Aqueous and Organic Membrane Filters

4. Chemical & Material Compatibility Database

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