MaxSignal® Crystal Violet/LCV ELISA Test Kit


Catalog# Product Name Quantity US List Price
1029-01T MaxSignal® Crystal Violet/LCV ELISA Test Kit
1 x 96 wells

These kits are available for purchase by email, fax or phone only. Please email your order to, fax it to 1-512-707-8122 or call 512-707-8993.



  • One-step competitive ELISA
  • Sensitive Crystal Violet detection
  • High recovery, cost-effective extraction methods
  • Saves money - No expensive instrumentation required
  • Easy, high recovery sample preparation
  • 96-well high throughput quantitative detection method
  • Prepared samples can be directly used for liquid chromatography confirmation


A One-step ELISA for the Screening of Crystal Violet/LCV

The patent-pending MaxSignal® Crystal Violet/LCV ELISA Test Kit is designed for routine screening for Crystal Violet/Leucocrystal Violet in a variety of sample types.

The MaxSignal Crystal Violet/LCV ELISA Test Kit is a one-step, competitive, colorimetric ELISA assay. The Crystal Violet (CV) antibody has been coated in the plate wells. During the analysis, sample is added along with the CV-horseradish peroxidase (CV-HRP) conjugate. If the CV residue is present in the sample, it will compete for the CV antibody, thereby preventing the CV-HRP from binding to the antibody attached to the well. The resulting color intensity, after addition of the HRP substrate (TMB), has an inverse relationship with the CV residue concentration in the sample.


Crystal Violet has been widely used all over the world in the fish farming industry as a fungicide, ectoparasiticide and disinfectant. However, it has been shown recently that Crystal Violet is highly cytotoxic to mammalian cells and has been implicated in the induction of thyroid and liver tumors. This has led to a prohibition of Crystal Violet for the treatment of fish and shrimp used for food production.

Publications that Reference Using the MaxSignal Crystal Violet ELISA

 Contia, G. O., Chiara Copata, C., Wangb, Z., D’Agatia, P., Cristaldia, A. and Ferrantea, M. (2014) Determination of illegal antimicrobials in aquaculture feed and fish: An ELISA study. Food Control. Doi: 10.1016/j.foodcont.2014.10.050


This kit is manufactured to the international quality standard ISO 9001:2008.

Kit Specs

PLATE: 1 x 96 well (Removable 8 wells x 12 strips)

MEASUREMENT: microtiter plate reader (450 nm)

TESTS PER KIT: The kit has the capacity for 96 determinations or testing of 42 samples in duplicate

STANDARDS: 0 / 0.02 / 0.067 / 0.2 / 0.67 / 2

MaxSignal® Crystal Violet/LCV ELISA Detection Limits

MaxSignal Crystal Violet/LCV ELISA Test Kit Detection Limits

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