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


Product Overview
 
The Cadmium Rapid Test Kit is a practical and field-ready solution for detecting cadmium contamination in durian and a wide range of agricultural products.
 
It is specifically developed for export-oriented supply chains requiring:
• Fast screening
• Reliable results
• On-site decision-making
 
Typical tested commodities include:
 
Tropical Fruits (Southeast Asia focus):
• Durian
• Mango
• Pineapple
• Banana
• Papaya
 
High-risk export fruits:
• Citrus (orange, mandarin, lemon, grapefruit)
• Apple
• Berry fruits (strawberry, blueberry)
 
Other matrices:
• Vegetables
• Grains & beans
• Tobacco
 
⸻
 
Performance & Validation
• Cross-validated with AAS and ICP laboratory methods
• Demonstrates strong consistency with laboratory testing results
• Designed for routine screening in export environments
• Widely adopted in Southeast Asia over the past two years
 
⸻
 
Sensitivity & Detection Capability
• Standard LOD: 50–100 μg/kg (ppb)
• Customizable LOD: 0.02–0.03 mg/kg
 
This sensitivity level is already aligned with practical export screening needs and has been proven stable in real-world applications.
 
⸻
 
Key Advantages — Why Exporters Choose This Kit
 
✅ Fast On-Site Screening
• Results in 3–5 minutes
• No need to wait for laboratory reports
• Ideal for pre-shipment inspection
 
⸻
 
✅ Built for Durian Export Supply Chains
• Specifically validated in durian testing scenarios
• Used by leading exporters in Vietnam & Thailand
• Suitable for farms, packing houses, and export facilities
 
⸻
 
✅ Laboratory-Level Reliability
• Verified against AAS / ICP methods
• High consistency across repeated tests
• Supports confident batch release decisions
 
⸻
 
✅ Easy Operation & Field Adaptability
• Simple sample preparation
• Minimal training required
• Stable performance under field conditions
 
⸻
 
✅ Fast Delivery Advantage
• Lead time: 1 working day shipment
 
 
⸻
 
 Optional Upgrade — Reader-Assisted Analysis
 
For customers requiring enhanced data control:
 
When used with a dedicated reader:
• Ensures more precise POSITIVE / NEGATIVE determination
• Provides semi-quantitative reference values
• Supports digital data recording and traceability
 
⸻
 
 Application Scenarios
• Fruit export pre-shipment inspection
• Durian packing house quality control
• Agricultural product collection centers
• Government & third-party inspections
• Routine food safety monitoring
 
⸻
 
 Technical Specifications
 
Item Description
Detection Target Cadmium (Cd)
Detection Type Qualitative / Semi-Quantitative
Detection Time 3-5 minutes
LOD 50–100 ppb (customizable)
Validation AAS / ICP cross-validated
Sample Types Durian, fruits, vegetables, grains
Storage 4–30°C
Shelf Life 15 months
Operation On-site, minimal training
 
 
⸻
 
 
Proven Beyond the Laboratory — Trusted in Real Export Supply Chains
 
Our Cadmium Rapid Test Kit has been extensively validated through real-world use in high-volume export environments.
 
With over 20 years of dedicated rapid test manufacturing experience, our products have been deployed across Southeast Asia and used by leading durian exporters handling large-scale international shipments.
 
Our solutions have also supported major international events such as the Olympic Games and Asian Games, where testing accuracy, consistency, and reliability are non-negotiable.
 
This depth of long-term, high-frequency validation clearly distinguishes us from ordinary manufacturers.
 
We are not just supplying a test kit — we are providing a proven risk control tool trusted by real exporters under real market pressure.

KIT CONTENTS
-SmarKIT Cadmium Rapid Test (40/50 tests /kit)
-PBST Buffer (1 bottle/kit, 30ml)
-Buffer A (1 bottle/kit, 15ml)
-Packing Insert (1 set /kit)

TEST PROCEDURE
Read the entire procedure carefully before performing any test.
Keep the test kit and reagent at room temperature(20℃~30℃) before testing.

1. Prepare samples according to chapter 7 (Sample preparations).
2. Remove the Cadmium Rapid Test from sealed pouch.
3. Hold the dropper vertically and transfer 3 full drops(around 100µL) of solution to the specimen well (S) and then start the timer.
4. Wait for red bands to appear. The result should be read in approximately 3-5 minutes. Do not interpret results after 5 minutes.

Reading results
Negative:
The Test Line (T) is the same as or darker than the Control Line (C). It is negative.
POSITIVE:
The Test Line (T) is lighter than the Control Line (C), or there is no Test Line. It is positive.

INVALID: Reference Line fails to appear.
Insufficient specimen volume or incorrect procedural techniques are the most likely reasons for an invalid result.

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.

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.