RapidChek™ Total Protein

  • Part #:ALR-10006618
  • Units:30 Strips/Tube
  • Availability: Inquire

Price: $102.84
Price: $138.83


The RapidChek™ Total Protein test is a colorimetric assay designed to screen surfaces for protein residues. Insufficient cleaning can result in unhygienic conditions. Testing surfaces or C.I.P. rinse fluids for protein residues can therefore help to verify the effectiveness of a sanitation program and an excellent allergen screening option.

The “protein error” test method is based on chemical reactions that occur in the presence of amino acids, peptides and proteins. When proteins are present on the sampled surface and brought into contact with the reagent on the test strip, a visually noticeable change of color from yellow to blue will occur within 30 seconds.

The limit of detection (LOD) is 3 μg for total protein (bovine serum albumin as control). This test does not require incubation and no additional equipment, aside from a device for the application of deionized or distilled water, is needed. Only the swab pad comes into contact with the surface, so no cleaning after testing the surface is necessary. The LOD limit can vary depending on the source of the protein.

RapidChek Total Protein test systems are a perfect complement to any microbial hygiene/allergen screening program as they can provide hygiene indicators immediately prior to the start of a production run.

Features & Specifications:

  • Kit contents: tube with 30 test strips
  • Storage Temperature: 15°C - 25°C
  • Fast and simple procedure – 30 seconds
  • No additional equipment required
  • No temperature-dependent incubation step
  • No chemicals come into contact with tested surface
  • Compact and easy to transport
  • High sensitivity - 3 µg for total protein (bovine serum albumin as control)
  • Low carbon footprint
  • No toxic components
  • Accessories required but not included:
    • Deionized or distilled water
    • Water applicator (e.g. spray bottle)


  • Unchanged yellow: invalid result (not enough water reached the test line)
  • Colorless to fuzzy yellow: negative (no protein residues detected)
  • Green-Blue: weak positive (small amounts of protein residues detected)
  • Blue: strong positive (high amounts of protein residues detected)

Additional Information

Ordering Instructions:

Part #Description
RapidChek Total Protein (30 strips per canister with dessicant
Empty PE-spray bottle for use with RapidCheck Total Protein strips