In the global effort to ensure food safety, monitoring pesticide residues on agricultural products is a critical task. Among the various detection methods, the Enzyme Inhibition Method-based Rapid Test Card stands out for its simplicity, speed, and effectiveness. This article explores the principle, advantages, primary applications, and operational requirements of this widely used diagnostic tool.
The Core Principle: A Biochemical Reaction
The test card operates on a well-established biochemical principle. It leverages the specific inhibition of the enzyme acetylcholinesterase (AChE) by two major classes of pesticides: organophosphates and carbamates.
How to use?
Method 1:Manual incubation — simply hold the card by hand during incubation.

Method 2: Use with the PR300 Portable PestiCheck Incubator for optimized temperature control and more accurate results.

Key Advantages: Why Choose This Method?
The FSTest (Food Safety Test) Pesticide Test Card offers several compelling benefits:
Rapid Results: Delivers results within 10-15 minutes, enabling on-the-spot decision-making.
User-Friendly: Requires minimal technical training. The color change is easy to read without sophisticated instruments.
Cost-Effective: Significantly cheaper than laboratory-based instrumental analysis, making large-scale screening feasible.
Portability: Ideal for field use at farms, wholesale markets, supermarkets, and kitchens for preliminary screening.
High Throughput: Allows for the simultaneous testing of multiple samples quickly.
Primary Applications: Where is it Used?
This rapid test card is designed for qualitative or semi-quantitative screening and is extensively used in:
Farm and Field Monitoring: For farmers to self-check their produce before sending it to market.
Incoming Raw Material Inspection: By food processing companies and large kitchens to screen incoming fruits and vegetables.
Market Surveillance: By regulatory authorities for routine spot checks in wholesale and retail markets.
Household Use: For health-conscious consumers to check the safety of their purchased groceries.

Our pesticide residue test cards have been a bestseller for 33 years. We were the first enterprise in China to independently research and develop this product. With our own factory and production line, we possess the capability to manufacture the core enzyme inhibition reagents from the ground up, guaranteeing complete control over the entire process. Our current daily output can reach up to 10,000 tests.
Our Pesticide Test Card, based on the enzyme inhibition principle, is an indispensable tool in the first line of defense for food safety. Its perfect blend of speed, simplicity, and low cost empowers everyone in the food chain—from growers to consumers—to actively participate in ensuring the quality and safety of fresh agricultural products. It effectively bridges the gap between complex laboratory analysis and the urgent need for accessible, on-site screening solutions.