CDS Empore 2252 and 2352 Environmental Anion Disks are polymer-based strong anion exchange solid phase extraction (SPE) disks with a 12 μm particle size for extracting negatively charged ions from aqueous samples. These SPE disks are ideal for removing humic and fulvic acid interferences and are compatible with EPA Methods 548.1, 552.1, and others. With a wide pH range of 1–14, they offer strong ion-exchange performance for environmental water analysis and related applications.

Available in:

• 47 mm (20 disks/pack)

• 90 mm (10 disks/pack)

CDS Empore 2215 and 2315 Environmental C18 Disks utilize C18-HD bonded silica with a 12 µm particle size for strong non-polar analyte extraction. These solid phase extraction (SPE) disks offer excellent retention capacity and high recovery efficiency. End-capped to minimize polar interactions, they are recommended for a wide range of EPA Methods, including 506, 508.1, 525.2, 550.1, 608, 1613B, and others.

Available in:

• 47 mm (20 disks/pack, 3 packs/case)

• 90 mm (10 disks/pack, 3 packs/case)

CDS Empore 2214 and 2314 Environmental C8 Disks feature C8-HD bonded silica with a 12 µm particle size for moderate non-polar analyte extraction. These solid phase extraction (SPE) disks combine strong retention capacity with high recovery performance and are end-capped to minimize polar interactions. Recommended for use with EPA Method 559.1.

Available in:

• 47 mm (20 disks/pack or 3 packs/case)

• 90 mm (10 disks/pack or 3 packs/case)

CDS Empore 2272 and 2372 Environmental Carbon Disks are solid phase extraction (SPE) disks made with activated carbon and a 12 μm particle size. The carbon surface contains both positive and negative charges, allowing effective extraction of highly polar compounds such as N-nitrosodimethylamine, oxamyl, and methamidophos, as well as volatile compounds like trihalomethanes. These disks are ideal for environmental and drinking water sample preparation.

Available in:

• 47 mm (20 disks/pack)

• 90 mm (10 disks/pack)

CDS Empore 2251 Environmental Cation Disks are polymer-based strong cation exchange solid phase extraction (SPE) disks with a 12 μm particle size, designed for extracting positively charged ions from aqueous solutions. These disks offer effective extraction and recovery of primary, secondary, and some tertiary amines, as well as most metal cations. Suitable for samples with pH range 1–14. Not recommended for quaternary amines.

Available in:

• 47 mm (20 disks/pack)

CDS Empore 2271 Environmental Chelating Disks utilize a PSDB-iminodiacetic acid chelating resin with a 12 μm particle size, designed for the extraction of divalent metals and other divalent cations from aqueous samples. These solid phase extraction (SPE) disks offer high capacity depending on pH and ion conditions. Typical relative selectivity is: Pb > Cu > Cd > Co > Fe > Ca > Sr. Suitable for environmental monitoring and trace metal analysis.

Available in:

• 47 mm (20 disks/pack)

CDS Empore 2270/2370 Oil & Grease Disks feature a one-piece design composed of C18 bonded silica beads and a depth filter. This integrated structure eliminates the need for additional prefilters and filter aids. These solid phase extraction (SPE) disks enable contamination-free extractions, provide up to 90% solvent reduction, and ensure fast flow rates with accurate and reproducible results. Suitable for EPA Method 1664 oil and grease analysis in water and wastewater.

Available in:

• 47 mm (20 disks/pack)

• 90 mm (10 disks/pack)

CDS Empore 3291 Radium RAD Disks are high-performance solid phase extraction (SPE) tools designed for selective retention of Radium isotopes 226 and 228 using molecular recognition. Each disk is composed of Crown Ether bonded silica particles (12 µm) that capture the analyte and function as the counting medium in either liquid scintillation or radiometric analysis. This enables reduced turnaround time and lower operational costs in radiochemical testing workflows.

Available in:

• 47 mm (20 disks/pack, 3 packs/case)

• 90 mm (10 disks/pack, 3 packs/case)

CDS Empore 2241 and 2341 Environmental SDB-RPS Disks are solid phase extraction (SPE) tools made from polystyrenedivinylbenzene-reversed phase sulfonate with a 12 µm particle size. These reversed-phase disks provide π-π and cation exchange interactions, ideal for the extraction of aromatic and positively charged compounds. Effective across a pH range of 1–14, they are suitable for applications involving drugs, pesticides, and metabolites under EPA 515.2 or related methods.

Available in:

• 47 mm (20 disks/pack, 3 packs/case)

• 90 mm (10 disks/pack, 3 packs/case)

CDS Empore 2240 and 2340 Environmental SDB-XC Disks feature a 12 µm particle size polystyrenedivinylbenzene (SDB-XC) sorbent, suitable for solid phase extraction of moderate non-polar or aromatic analytes. These disks operate within a pH range of 1–14 and are designed for high performance across EPA Method 515.2 or other protocols requiring SDB sorbents.

Available in:

• 47 mm (20 disks/pack, 3 packs/case)

• 90 mm (10 disks/pack, 3 packs/case)

CDS Empore 2240 Environmental SDB-XD Disks are made of polystyrenedivinylbenzene (SDB-XD) with a 12 μm particle size for solid phase extraction (SPE) of non-ionic surfactants. These disks offer broad chemical compatibility and are suitable for environmental sample preparation across a wide pH range from 1 to 14. Ideal for samples requiring retention of non-polar and non-ionic analytes.

Available in:

• 47 mm (20 disks/pack)

CDS Empore™ 3290 Strontium RAD Disks are specialized solid phase extraction (SPE) tools designed for the selective capture and quantification of Strontium-90. These 47 mm disks incorporate Crown Ether bonded silica particles (12 µm) through molecular recognition technology to ensure precise retention of Strontium isotopes.

Once captured, the target analyte remains immobilized on the disk and can serve as the counting medium for liquid scintillation or radiometric counting. This significantly reduces turnaround time and overall operating costs in radiochemical analysis workflows.

• Diameter: 47 mm

• Particle Type: Crown Ether bonded Silica (12 µm)

• Target Isotope: Strontium-90

• Recommended Method: DOE Method RP515

• Packaging: 20 disks per pack, 3 packs per case

CDS Empore 3292 Technetium RAD Disks are solid phase extraction (SPE) tools designed for efficient isolation and quantification of Technetium Isotope 99. These 47 mm disks incorporate Crown Ether bonded silica particles (12 µm) using molecular recognition technology to ensure precise analyte retention. Once captured, the analyte may also serve as the counting medium via liquid scintillation or radiometric methods. This design significantly reduces turnaround time and operational costs.

Available in:

• 47 mm (20 disks/pack, 3 packs/case)