Products for Calprotectin Extraction

CALEX Cap comparison to Gold Standard

Weighing the sample is still considered the Gold-Standard practice for calprotectin extraction. You can read more about the weighing extraction procedure here.

However, due to the nature of samples, products have been developed in order to minimise sample handling time. Alpha Laboratories offers three key products for the extraction of human faecal Calprotectin for laboratories, clinicians and point of care applications in the UK.

Choose from one of the following products:

  • New CALEX® Cap Calprotectin Stool Extraction Device
  • ScheBo® Quick-Prep XL Faecal Sample Preparation Kit
  • Roche Smart-Prep Faecal Sample Preparation Kit

New CALEX® Cap Calprotectin Stool Extraction Device

Cap Calprotectin Stool Extraction Device
CALEX Cap Calprotectin Stool Extraction Device

CALEX® Cap is a brand new stool extraction device containing a measured amount of BÜHLMANN calprotectin extraction buffer. It is for exclusive use with all BÜHLMANN calprotectin assays.

The features of the CALEX extraction device are unique in the market. It improves laboratory workflow and efficiency by eliminating the need for sample weighing, pipetting or decanting and enabling direct loading of the extraction device onto ELISA processors.

  • Ease of use for laboratory personnel and patients
  • Application as a primary tube for DS2 ELISA robots and many clinical chemistry analysers
  • An optimised sample dilution for maximum efficiency in stool extraction
  • Extract stability of 3 days at room temperature allowing batching to suit the laboratory routine
  • Very high correlation to the gold standard weighing extraction method

CALEX Cap can be used directly with:

Laboratories using CALEX Cap can benefit from the new BÜHLMANN Calprotectin ELISA kit format EK-CAL2-WEX, that is provided without extraction buffer and so reduces cost and waste.

View Extraction Method Steps View CALEX® Cap Instructions for Use Buy New CALEX® Cap device online


ScheBo® Quick-Prep XL

ScheBo® Quick-Prep XL
ScheBo® Quick-Prep XL

Using Quick-Prep, sample preparation is reduced from 7 steps (in the weighing extraction method) to just 5 steps.

  • 50 devices/box
  • Tubes contain 1.3ml of Extraction Buffer
  • Ready to use
  • Stored at 2-8° Celsius
  • CE marked


This device is best for “Nutella-like“ faeces, faeces containing fibres or grains.

Extraction tubes are ordered separately for the Quantum Blue and EK-CAL ELISA.

View Extraction Method Steps Buy ScheBo® Quick-Prep XL online

Roche Smart-Prep

Roche Smart-Prep
Roche Smart-Prep

Using the Roche Smart-Prep device, you can reduce sample preparation  from 7 steps (in the weighing extraction method) to just 5 steps.

  • 50 devices/box
  • to be used with 4 ml of Extraction Buffer
    (supplied with EK-CAL ELISA and Quantum Blue kits or available separately B-CAL-EX12)


Simplifies and aids more accurate extraction of Calprotectin from stool samples.

This device is best for liquid faeces or very dry faeces.

Extraction tubes are ordered separately.

View Extraction Method Steps Buy Roche Smart-Prep online