Fast, reliable screening for Malachite Green (MG), Leucomalachite Green (LMG), Crystal Violet (CV) and Leucocrystal Violet (LCV) in aquaculture and seafood products.
NANKAI Biotech’s Malachite Green Rapid Test Kit delivers accurate front-end detection of prohibited triphenylmethane dye residues, helping seafood exporters, processors, aquaculture farms and inspection teams reduce risk before laboratory confirmation, shipment or market release.
 
Why Screen for Malachite Green Family Residues? Malachite Green and its metabolites are strictly prohibited in food-producing aquatic animals in most major markets. Early detection is critical to avoid shipment rejections, regulatory penalties, product recalls and brand damage.
Key Advantages

• Rapid results in minutes — ideal for high-volume daily screening
• Simple visual interpretation — no instrument required for routine use
• Optional quantitative analysis with reader for objective, traceable records
• Room-temperature storage — convenient for farms, factories and field use
• High sensitivity (down to ppb level) for practical front-end risk control
• Supported by our own CMA / CATL / CNAS certified analytical laboratories

Target Compounds

• Malachite Green (MG)
• Leucomalachite Green (LMG)
• Crystal Violet (CV)
• Leucocrystal Violet (LCV)

Applicable Sample Matrices Fish • Shrimp • Prawn • Crab • Shellfish • Aquatic Products • Fresh & Frozen Seafood • Processed Seafood • Aquaculture Raw Materials
Proven Aquaculture & Seafood Safety Expertise

• 15+ years specialized experience in aquaculture and seafood safety testing
• Trusted by seafood exporters, processors, and inspection agencies worldwide
• Proven performance in real-world export pre-screening and supply chain programs
• Fully backed by our own certified laboratories with LC-MS/MS & GC-MS/MS validation

Typical Applications

• Aquaculture farm monitoring
• Seafood factory incoming inspection and QC
• Raw material & supplier verification
• Export risk control
• Market surveillance
• Laboratory pre-screening

Laboratory-Verified Performance All NANKAI rapid test kits are validated through our own CMA / CATL / CNAS certified analytical laboratories equipped with LC-MS/MS, GC-MS/MS and other advanced platforms. We perform matrix evaluation, reference method comparison and real-world performance verification to ensure reliability across complex aquatic matrices.
Related Aquaculture & Seafood Safety Test Kits

• Crystal Violet Rapid Test Kit
• Nitrofurans Rapid Test Kit
• Chloramphenicol Rapid Test Kit
• Fluoroquinolones Rapid Test Kit
• Sulfonamides Rapid Test Kit
• Tetracyclines Rapid Test Kit

Ready to Strengthen Your Seafood Safety Control? Contact us for product details, matrix suitability, quantitative options or quotation.
 
 

NANKAI Biotech develops and manufactures rapid testing solutions for real-world food safety risk control.

For more than 20 years, we have focused on fast, practical and reliable rapid screening technologies that help regulators, laboratories, distributors, exporters and food industry QC teams make faster food safety decisions.

NANKAI provides rapid screening and quantitative analysis solutions for pesticide residues, mycotoxins, illegal additives, aquaculture & seafood safety, veterinary drug residues, antibiotics, heavy metals & toxic elements, digital QC, traceability systems and related food safety applications.

What differentiates NANKAI is the combination of large-scale manufacturing, certified analytical laboratory verification and extensive real-world deployment experience.

We operate three CMA, CATL & CNAS certified analytical laboratories equipped with LC-MS/MS and GC-MS/MS platforms, supporting matrix verification, reference method comparison, rapid test performance evaluation and accredited third-party analytical testing services.

Our rapid testing solutions have been applied in Olympic-level food safety programs, major international events, government monitoring projects, grain & feed safety workflows, fruit & vegetable screening, tobacco & tea quality control, seafood and meat safety supervision, traditional herbal material testing, dairy and honey safety programs, factory QC and export risk-control workflows.

Highlights:
• Fast, practical and reliable rapid screening solutions
• 20+ years of rapid testing technology development
• 25,000+ m² manufacturing & laboratory facilities
• Three CMA, CATL & CNAS certified analytical laboratories
• LC-MS/MS & GC-MS/MS analytical capability
• Olympic-level and government project experience
• Billions of real-world screening applications
• Food safety monitoring, traceability and digital regulatory systems

NANKAI Biotech supports international partners with practical, scalable and laboratory-verified rapid testing solutions for food safety risk control.