The Metolachlor Rapid Test Kit is designed for fast on-site screening of metolachlor residues in tobacco, corn/maize, soybean and other agricultural commodities.
 
It is especially suitable for tobacco raw material QC, agricultural raw material intake inspection, crop residue screening and pre-LC-MS/MS risk control.
 
For tobacco companies, processors and agricultural QC teams, the real challenge is often not testing itself, but discovering a high-risk batch too late — after collection, blending, storage, processing or shipment.
 
This rapid screening solution helps users identify potential metolachlor residue risks earlier, so that high-risk batches can be separated, further confirmed, or prevented from entering downstream production.
 
Similar rapid screening workflows have already been applied in large-scale tobacco and agricultural screening environments by professional international users, where consistency, practical operation and reliable screening performance are critical.
 
⸻
 
Main Testing Matrices
 
Tobacco Applications — Priority Use Scenario
 
Metolachlor screening is especially valuable in tobacco-related quality control, including:
 
* Fresh tobacco leaves
* Cured tobacco leaves
* Tobacco raw material batches
* Blended tobacco samples
* Tobacco processing materials
 
Best suited for:
 
* Tobacco companies
* Tobacco raw material suppliers
* Leaf purchasing centers
* Tobacco processing plants
* Third-party QC laboratories
* Large agricultural screening programs
 
For tobacco, rapid screening helps identify potential residue risk before raw materials enter blending, storage or processing stages.
 
⸻
 
Core Field Crop Applications
 
Metolachlor is closely associated with large-scale agricultural crop systems. The kit can also support screening in important field crop matrices, including:
 
* Corn / Maize
* Sweet corn
* Soybean
* Peanut
* Cottonseed
* Sugar beet
* Sugarcane
 
These crops represent stronger commercial application potential because they are linked to large planting areas, raw material trade, feed supply chains and food processing industries.
 
⸻
 
Vegetable & High-Value Crop Applications
 
For selected applications, metolachlor screening may also be used in:
 
* Tomato
* Carrot
* Cucumber
* Melon crops
* Celery
* Radish
* Beans
* Leafy vegetables
 
These matrices are suitable for users who need targeted residue screening before laboratory confirmation.
 
⸻
 
Key Application Scenarios
 
1. Tobacco Raw Material Screening
 
For fresh tobacco leaves, cured leaves and tobacco raw material batches.
 
Helps tobacco companies and suppliers screen residue risk before purchasing, blending, storage or processing, reducing the possibility of high-risk materials entering production.
 
This is the most important positioning for Metolachlor rapid screening, especially for customers with strict internal residue control requirements.
 
⸻
 
2. Corn & Soybean Raw Material Intake
 
For corn/maize, soybean, soybean meal and related crop materials.
 
Helps grain processors, feed mills and agricultural trading companies screen incoming raw materials before warehouse acceptance or production use.
 
This is suitable for high-volume agricultural supply chains where fast batch-level decisions are needed.
 
⸻
 
3. Agricultural Residue Risk Control
 
For peanut, cottonseed, sugar beet, sugarcane and selected vegetables.
 
Helps QC teams identify potentially high-risk batches before sending samples for laboratory confirmation, improving daily screening efficiency and reducing unnecessary laboratory workload.
 
⸻
 
4. Pre-LC-MS/MS Screening
 
For laboratories, tobacco QC teams and agricultural processors handling many samples.
 
Rapid screening can help users first separate low-risk and high-risk samples, so confirmatory LC-MS/MS or GC-MS/MS testing can be used more efficiently.
 
The kit is not intended to replace laboratory confirmation. It is designed as a front-end risk control tool before laboratory testing.
 
⸻
 
Why Metolachlor Rapid Screening Matters
 
Metolachlor residue control is often handled through laboratory multi-residue methods. However, in real production and supply-chain management, laboratory testing alone may not be fast enough for daily batch decisions.
 
Rapid screening helps users:
 
* Detect residue risk earlier
* Improve tobacco raw material control
* Reduce delayed discovery after blending or processing
* Support faster intake decisions for corn and soybean
* Reduce unnecessary laboratory workload
* Build a more practical residue monitoring workflow
 
For professional users, this kit is not just a simple strip. It is a practical pre-LC-MS/MS screening tool for tobacco QC, agricultural raw material control and routine residue risk management.
 
⸻
 
Technical Specifications
 
Item Description
Detection Target Metolachlor / S-Metolachlor
Detection Type Qualitative / Semi-quantitative with reader
Priority Application Tobacco residue screening
Main Crop Matrices Corn/maize, soybean, peanut, cottonseed, sugar beet, sugarcane
Additional Matrices Tomato, carrot, cucumber, melon, celery, radish, beans, leafy vegetables
Result Reading Visual / Optional reader-assisted interpretation
Use Scenario Tobacco QC, raw material intake, crop residue screening, pre-LC-MS/MS screening
Storage 4–30°C
Shelf Life 15 months
Operation On-site rapid screening
 
⸻
 
Optional Reader-Assisted Analysis
 
Results may be interpreted visually or with an optional dedicated reader.
 
When used with the reader, the system can:
 
* Improve POSITIVE / NEGATIVE interpretation
* Provide semi-quantitative reference values
* Support digital documentation and traceability
* Help professional users manage batch-level QC records
 
This upgrade is especially suitable for tobacco companies, laboratories and large agricultural QC programs.
 
⸻
 
Laboratory-Backed Screening Solution
 
We are not only a rapid test strip supplier.
 
Our strength lies in an integrated system covering:
 
* In-house R&D
* Large-scale manufacturing
* Colloidal gold rapid screening technology
* Independent laboratory verification
 
With our own laboratories equipped with LC-MS/MS and GC-MS/MS systems, we can evaluate how rapid screening results align with laboratory reference methods in validated applications.
 
This does not mean the rapid test replaces laboratory instruments. It means our rapid screening products are supported by laboratory-backed verification, matrix evaluation and long-term optimization.
 
This capability helps customers gain more confidence when using rapid screening as a front-end risk control tool.
 
⸻
 
Brand Trust & Real-World Validation
 
Proven in Professional Tobacco & Agricultural Screening Environments
 
Metolachlor screening requires more than a low-cost strip. Professional users care about whether the method can work consistently in real samples, real workflows and real production pressure.
 
Similar rapid screening workflows have already been applied in large-scale tobacco and agricultural screening environments by international corporate users, where operational practicality, screening reliability and result consistency are essential.
 
With 20+ years of rapid test manufacturing expertise, in-house R&D, large-scale production and laboratory-backed verification capability, we provide more than a product.
 
We provide a practical residue screening solution for tobacco companies, agricultural processors, QC laboratories and professional users who need reliable front-end risk control before laboratory confirmation.
 

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.