Crystal Violet Rapid Test Kit Reliable Rapid Screening for Crystal Violet Residues in Seafood & Aquaculture Products

Not just a rapid test supplier — a long-term, globally proven food safety partner.

Product Overview

The NANKAI Crystal Violet Rapid Test Kit is a lateral flow immunochromatographic assay designed for rapid screening of Crystal Violet residues in fish, shrimp and other aquatic products.

The kit supports routine seafood safety inspection, aquaculture quality control, wholesale market monitoring, laboratory pre-screening, export verification and government monitoring programs.

Designed for high-frequency testing environments, this rapid test kit helps users identify potential residue risks quickly and efficiently, supporting practical food safety decision-making and routine quality control workflows.

Trusted Worldwide • 20+ Years of Expertise • Field & Laboratory Ready • Certified Analytical Laboratory Verification

NANKAI seafood safety solutions have been widely applied in government monitoring programs, seafood wholesale markets, rapid testing laboratories, seafood processors, exporters, importers and large-scale food safety screening projects.

Advantages & Key Features

3–5 Min Result Reading

Rapid result reading within 3–5 minutes, supporting fast seafood safety screening decisions.

CE & ISO Certified

Manufactured under certified quality systems and aligned with international quality requirements.

High-Sensitivity Single-Use Test

Designed for reliable residue screening and confident pass/fail decision-making.

Visual Readout, No Instrument Required

Results can be interpreted by the naked eye, making the kit suitable for routine field inspection and on-site testing.

Field & Laboratory Ready

Suitable for both laboratory pre-screening and on-site seafood safety inspection workflows.

Room Temperature Storage

Stored at room temperature without cold-chain transportation or refrigerated storage.

Non-Toxic Formulation

Designed for safe routine use in high-frequency testing environments.

Wide Sample Coverage

Applicable to fish, shrimp, shellfish and other aquatic products.

Typical Applications

Aquaculture Farms

Routine residue monitoring and aquaculture safety screening.

Seafood Processing Plants

Incoming raw material inspection and batch quality control.

Seafood Wholesale Markets

High-frequency seafood safety screening and market supervision programs.

Government Monitoring Programs

Large-scale seafood safety inspection and regulatory workflows.

Seafood Export Programs

Supports export-oriented residue control and buyer compliance requirements.

Import Verification Programs

Supports supplier qualification and imported seafood safety verification.

Supermarket & Retail Supply Chains

Supplier qualification, incoming inspection and seafood safety verification programs.

Food Safety Laboratories

Rapid pre-screening before confirmatory analytical testing.

Why NANKAI for Seafood Safety Screening

NANKAI Biotech has more than 20 years of rapid testing technology development experience and is one of China's most experienced providers of seafood safety rapid screening solutions.

Our seafood safety testing platform combines rapid test kits, certified analytical laboratory verification and extensive real-world deployment experience.

15+ Years of Real-World Seafood Safety Application Experience

NANKAI seafood rapid testing solutions have been continuously applied in aquatic product safety screening programs, regulatory monitoring workflows, wholesale market inspection systems and enterprise quality control applications for more than 15 years.

Proven Through Millions of Real-World Screening Applications

Our products have been repeatedly verified through large-scale seafood safety screening programs involving government agencies, seafood inspection laboratories, aquaculture operations, wholesale markets, processors, exporters, importers and retail supply chains.

Trusted in High-Frequency Inspection Environments

Designed for practical environments where large numbers of samples must be screened quickly, consistently and reliably every day.

Trusted by Regulators, Industry and Buyers

Supports seafood safety programs that require regulatory confidence, buyer confidence and reliable screening performance throughout the supply chain.

Certified Analytical Laboratory Support

Supported by three CMA, CATL & CNAS certified analytical laboratories equipped with LC-MS/MS and GC-MS/MS analytical platforms for matrix verification, reference method comparison and performance evaluation.

Digital Food Safety & Traceability Experience

Extensive experience supporting food safety monitoring systems, traceability platforms, rapid testing laboratories and large-scale seafood regulatory projects.

Technical Information

Target Analyte

Crystal Violet

Sample Types

Fish

Shrimp

Shellfish

Aquatic Products

Test Type

Lateral Flow Rapid Test Kit

Result Type

Rapid Visual Screening

Testing Time

3–5 Minutes

Storage Conditions

4–30°C

No refrigeration required during routine storage.

Shelf Life

15 Months

Delivery Time

Typically Available for Shipment Within 1 Working Day

Related Seafood Safety Rapid Test Kits

Banned Substances & Illegal Additives

Malachite Green Rapid Test Kit

Malachite Green & Crystal Violet Rapid Test Kit

Crystal Violet Rapid Test Kit

Antibiotics & Veterinary Drug Residues

Chloramphenicol Rapid Test Kit

Fluoroquinolones Rapid Test Kit

Sulfonamides Rapid Test Kit

Tetracyclines Rapid Test Kit

Oxytetracycline Rapid Test Kit

Florfenicol Rapid Test Kit

Nitrofuran Metabolites

AOZ

AMOZ

SEM

AHD

4-in-1 Nitrofuran Metabolites Rapid Test Kit

Heavy Metals & Toxic Elements

Cadmium

Lead

Seafood Quality Indicators

Histamine

Contact Us

Looking for reliable Crystal Violet residue screening solutions for seafood safety programs, export verification and aquatic product quality control?

Contact NANKAI Biotech for quotations, product catalogs, technical documents, validation information and application support.

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Why Choose Us?

Proven in Major International Events

Our rapid testing technologies have supported large-scale food safety monitoring programs
in high-standard international environments,
demonstrating reliability, speed, and operational efficiency
under real-world conditions.Supporting food safety monitoring in:

• 2008 Beijing Olympic Games
• 2010 Shanghai World Expo
• 2023 Hangzhou Asian Games

Global Trust & Real-World Validation

More Than a Test Kit — An Integrated Diagnostic Platform

20+ Years of Expertise • Trusted in Global Food Safety Programs

Unlike typical reagent suppliers, we operate as an integrated diagnostic
platform combining:

• In-house R&D
• Large-scale manufacturing
• Certified cleanroom production
• Independent third-party laboratories

Ensuring end-to-end quality control from development to real-world application.

Protect Your Shipment Before It Leaves

Don’t wait for laboratory results to discover a problem.

Screen early. Act early. Ship with confidence.

Contact us today to learn more about our cadmium rapid testing solutions for durian and tropical fruit exporters.

For new products, please contact us via,

sale@nkbiotech.com

Whatsapp: 86-151-5809-6930