SPE Column

Empty SPE Cartridge

Empty SPE cartridges are straight-walled syringe barrel tubes made from polypropylene, designed for customers to pack with custom sorbents. Each cartridge includes two ultrapure sintered PE frits to maintain high sensitivity in analytical results. Available in eight volumes from 1 mL to 300 mL, they support a wide range of sample preparation needs in pharmaceutical, environmental, food and beverage, and life-science testing.

Straight-walled polypropylene barrels allow consistent packing and predictable flow dynamics during SPE procedures
Two ultrapure sintered PE frits reduce extractables and maintain high sensitivity in low-level detection
Eight volume options from 1 mL to 300 mL provide flexibility across small-scale screening and large-volume industrial applications
Standardised geometry enables consistent performance when using custom sorbents across multiple batches

Key Benefits

What This Product Gives You

Straight-walled polypropylene barrels allow consistent packing and predictable flow dynamics during SPE procedures
Two ultrapure sintered PE frits reduce extractables and maintain high sensitivity in low-level detection
Eight volume options from 1 mL to 300 mL provide flexibility across small-scale screening and large-volume industrial applications
Standardised geometry enables consistent performance when using custom sorbents across multiple batches
No pre-packed sorbent means no waste of expensive materials and full control over sorbent selection and loading

Straight-walled syringe barrel tubes made from polypropylene
Two ultrapure sintered PE frits per cartridge for consistent flow and low extractables
Eight volume sizes: 1 mL, 3 mL, 6 mL, 12 mL, 20 mL, 30 mL, 60 mL, 300 mL
Compatible with standard syringe filter fittings and SPE manifolds
Designed for manual or automated packing with custom sorbents
No pre-loaded sorbent allows full control over bed volume and packing density

Where It Is Used

Applications And Buyers

Application Scenarios

Preparing environmental water samples for trace pesticide analysis using custom sorbents
Processing pharmaceutical bulk drug samples with tailored sorbents for targeted analyte isolation
Handling high-volume food and beverage samples requiring large bed volumes for residue extraction
Supporting contract research organisations that need to test multiple sorbent types across a single sample matrix
Enabling lab-scale development of SPE methods before scaling to pre-packed commercial cartridges

Who It Is For

Pharmaceutical R&D labs developing custom SPE methods with proprietary sorbents
Environmental testing labs that use different sorbents for varying contaminant classes
Food and beverage labs preparing complex matrices with variable analyte profiles
Contract research organisations running multiple SPE workflows under different client specifications
Lab distributors and OEM filter brands that require blank cartridges for private-label packing

Problems It Solves

High cost of pre-packed SPE cartridges when testing multiple sorbents or small batches
Inconsistent performance when using non-standard or custom sorbent bed heights in commercial cartridges
Limited volume options in commercial SPE columns that don't match the scale of a specific method
Risk of contamination from residual solvents or additives in pre-packed sorbents
Inflexibility when switching between sorbent types without changing cartridge geometry or vendor

Data

Specifications

Volume	1 mL, 3 mL, 6 mL, 12 mL, 20 mL, 30 mL, 60 mL, 300 mL
Material	Polypropylene barrel, PE frits
Frits	2 x sintered PE frits
Packing	100/pk (1-60 mL), 50/pk (20-60 mL), 10/pk (300 mL)
Geometry	Straight-walled syringe barrel
Compatibility	Standard syringe filter fittings and SPE manifolds

Materials

Polypropylene barrel
Sintered PE frits

Customization Options

Available in eight volumes from 1 mL to 300 mL
OEM contract manufacturing and private-label packing available through the Microlab OEM division
Custom packaging options for bulk orders
Support for lab-specific sorbent loading protocols via OEM services

How It Is Made

Manufacturing And Quality Control

Manufacturing Process

Manufacture of ultrapure sintered PE frits
Assembly of frits into the barrel
Inspection of frit integrity and barrel wall uniformity
Packing in specified quantities per order

Quality Control

Barrel wall thickness and straightness verified during moulding
Frits inspected for porosity and structural integrity before assembly
Final assembly checked for correct frit placement and barrel alignment
Packing verified against order quantity and volume specification

Comparison

Compared With The Alternatives

Versus Pre-packed SPE cartridges

Empty cartridges eliminate waste from unused sorbent and allow full control over sorbent type, bed height, and packing method

Versus Cartridges with non-sintered frits

Sintered PE frits provide better mechanical stability and lower extractables, which is critical for high-sensitivity analysis

Versus Cartridges with tapered walls

Straight-walled barrels ensure consistent packing and predictable flow, reducing variability in extraction efficiency

Versus Cartridges with plastic frits from other materials

Sintered PE frits offer superior chemical resistance and lower extractables compared to some alternative frit materials

Use Guide

How To Use It

Select the cartridge volume based on sample size and required sorbent bed depth
Clean the cartridge and frits with appropriate solvent before packing with sorbent
Load sorbent uniformly into the barrel using a funnel or automated system
Ensure the sorbent bed is compacted to the desired density without over-compression
Use the cartridge immediately after packing to avoid contamination or sorbent degradation
Follow standard SPE protocol: conditioning, sample loading, washing, and elution

Photos

Product Gallery

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FAQ

Questions Buyers Ask

What is the difference between these empty SPE cartridges and pre-packed ones?

These are blank cartridges without any sorbent. You pack them with your own sorbent, which allows full control over material type, bed height, and packing method.

Can I use these cartridges with any sorbent type?

Yes. The polypropylene barrel and PE frits are compatible with most common SPE sorbents, including silica-based, ion-exchange, and reversed-phase materials.

What is the packing quantity for each size?

1 mL to 60 mL: 100 per pack. 20 mL to 60 mL: 50 per pack. 300 mL: 10 per pack.

Are the frits sintered or bonded?

The frits are sintered PE, which provides high chemical resistance and low extractables for sensitive analyses.

Can I get these cartridges with my own brand name?

Yes. The Microlab OEM division offers private-label packing and contract manufacturing for empty SPE cartridges.

What is the maximum operating pressure?

The cartridges are designed for standard SPE pressures. No maximum pressure is specified in the source facts.