🔴 Originally by 3M · Now by CDS Analytical
Empore™ SPE Extraction Disks
The original particle-loaded membrane SPE disk — invented by 3M, now manufactured by CDS Analytical. Faster extraction, lower solvent use, and uniform performance with no channeling.
⚡30+ Years Proven
🛡 EPA Compliant
✓ 20+ Sorbent Chemistries
🚚 Ships 1–3 days 🛡 30-day guarantee 💳Secure checkout 📞1.800.541.6593 🏭GMP & ISO certified
SPECIFICATIONS
Technical Specifications
Thickness
0.50 ± 0.05 mm
Flow Rate
< 10 min L⁻¹
Particle Size (HD)
12 μm nominal
Particle Size (SD)
50 μm nominal
pH Range (Silica)
2-12
pH Range (Resin)
1-14
Sorbent Loading
≥ 90%
Polymer Matrix
≤ 10%
Originally developed by 3M® in 1989. Manufactured in our GMP-compliant clean room in Oxford, PA.
SELECTION GUIDE
Find the Right Disk
Choose by application, then select your size.
47
mm
Standard Analysis
-
Sample volume: 100-1000mL
-
Routine environmental analysis
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Standard vacuum manifolds
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Pack sizes: 20 or 60 disks
90
mm
High Volume Processing
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Sample volume: > 1,000 mL
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Large-scale monitoring
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Specialized apparatus
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Packs: 10 or 30 disks
Not sure which to choose? Contact our technical team →
Why Empore™
5 Reasons Labs Choose Empore™ Disks
Not all SPE is the same. Here's what makes particle-loaded membrane technology different.
1
Particle-Loaded Membrane — Not Loose-Packed
Unlike traditional SPE products that use loose-packed resin in a cartridge, Empore™ disks use a patented particle-loaded membrane — sorbent particles tightly enmeshed in an inert PTFE matrix. This eliminates channeling, ensures uniform extraction across the entire disk surface, and delivers consistent results every time.
2
Recommended in 13+ Official EPA Methods
Empore™ disks are written into 13+ official EPA analytical methods for water quality testing, including EPA 506, 507, 508.1, 525.3, 1613, 1664, and more. When laboratories follow these methods, Empore is the specified SPE product — making it the standard for regulatory compliance.
3
Fast Flow Rates for Large-Volume Samples
Empore™ disks process 1L of DI water in under 10 minutes at 20 inHg vacuum. The disk format provides a large surface area for enhanced sorbent/sample contact, enabling high throughput for environmental water analysis and other large-volume applications.
4
Least Particle Fines — Protect Your Instruments
In traditional loose-packed SPE, sorbent particles can break free and enter your eluate, causing tube clogging and HPLC column damage. In Empore™ membranes, particles are permanently locked within the PTFE matrix — producing 1/10 the particle fines of other leading SPE products, extending instrument life and reducing system downtime.
5
Low Elution Volume, Less Solvent
Sorbent particles are confined within the thin Empore™ membrane (0.50 mm), which means the bed volume is extremely small. Less solvent is required for elution — 1/10 of traditional loose-packed SPE — reducing or eliminating time-consuming evaporation steps and lowering total solvent usage per sample.
EXPLORE
Not Sure If a Disk Is Right?
Same trusted Empore™ membrane technology, different formats for different workflows.
RESOURCES
Resources for Disks
Download technical documents and application notes
Analysis of Polynuclear Aromatic Hydrocarbons Using US EPA Quick Turnaround Method (QTM) by CDS Empore Disk
Using Empore™ C18 SPE Disk to Extract SVOCs in Drinking Water Followed by GC-MS Analysis for EPA Method 525.2
Determination of Chlorinated Dioxins and Furans in Four Types of Wastewater by EPA Method 1613 Rev. B
Empore™ Oil and Grease SPE Disk for Water Samples by Using a Cleaner EPA Method 1664 with Less n-Hexane Usage
A Novel Empore 8270 Disk to Extract 125 Sei-volatile Organic Compounds from Water Samples per EPA 8270E Method
Rapid Determination of 90 Strontium in Water Using EmporeTM Strontium Disk
FAQ