FSTest Formaldehyde Rapid Test Kit
Product Overview
The FSTest Formaldehyde Rapid Test Kit (for dehydrated food) is an essential, high-efficiency screening tool engineered for the rapid detection of illegal formaldehyde residues in premium foodstuffs. Commonly known as formalin, formaldehyde is a highly toxic substance that destroys cellular protein activity, triggers human allergies, and causes severe gastrointestinal irritation. Driven by illicit financial interests, some vendors unlawfully treat rehydrated products with formalin to artificially enhance color preservation and anti-corrosion properties. This portable kit provides rapid, reliable, on-site testing to defend your supply chain against hazardous food adulteration.
Test Principle & Color Development
This kit is based on the highly sensitive and chemically stable AHMT spectrophotometry method. Formaldehyde present in the treated sample extraction solution reacts dynamically with a specialized chromogenic reagent formula, converting the colorless solution into a distinct purplish-red compound. Within a strict linear range, a higher formaldehyde concentration yields a deeper, more intense purplish-red color. Results are determined immediately by placing the tube horizontally against a clean white background and comparing the shade directly to the included standard colorimetric card chart.
Target Industries & Applicable Matrices
This rapid testing setup is widely utilized by food wholesalers, quality supervision departments, seafood processing plants, international custom border checkpoints, and health/epidemic prevention agencies. It is fully optimized for testing both food matrices and their storage solutions, including:
· • Rehydrated Seafood: Silverfish, squid, and related aquatic products.
· • Processed Meats: Beef tripe and other cattle tissues.
· • Agricultural Commodities: Bamboo shoots and rehydrated vegetables.
· • Liquid Environments: Soaking liquids and preservation brines.
Key Advantages & Application Scenarios
· Excellent Trace Detection Limits (LOD): Yields exceptional trace monitoring thresholds — 0.2 ppm for liquid samples and 2 ppm for solid food matrices.
· On-Site Mobility (No Complex Lab Machinery): Completely replaces the need for stationary laboratory spectrophotometers or heavy analytical equipment. Everything required for rapid screening is packed directly in a self-contained mobile box, perfect for checking inventory at receiving docks or wholesale markets.
· Intelligent Intermediate Gradient Reading: The results determination guidelines allow users to read intermediate values between color blocks to maximize sensitivity and minimize false negatives.
Simple Step-by-Step Assay Procedure
Achieve clear visual colorimetric confirmation in under 30 minutes:
1. Reagent Prep: Pour 21 mL from Reagent E into the Reagent D bottle, dissolve thoroughly (ultrasound dissolution is recommended), and set aside.
2. Sample Preparation:
• Liquid Samples: Take clear liquid directly (or filter if turbid).
• Solid Samples: Weigh 1g of bamboo shoots or 2g of seafood/tripe in a 15mL tube. Make the volume up to 10 mL with purified water, vortex for 1 min, and let it stand for 5 min. Add 1 mL of Reagent A and 1 mL of Reagent B, vortex, and centrifuge at 4000 r/min for 5 min (or filter with paper) to obtain your clear extraction solution.
3. Reaction Mix: Transfer 2 mL of the extraction solution into a 5mL tube. Add 0.4 mL of Reagent C and 0.4 mL of the prepared Reagent D. Mix well and let it stand for 7 minutes.
4. Final Color Burst: Add 0.1 mL of Reagent F, mix well, and let it stand for 5 minutes. Immediately map the resulting purplish-red shade against the colorimetric card over white paper to read the concentration.
Kit Composition & Storage
• Specifications: 50 tests/kit.
• Package Contents: Formaldehyde Reagents A (55mL), B (55mL), C (25mL), D, E (25mL), and F (6mL), 50x 5mL Centrifuge Tubes, 10x 15mL Centrifuge Tubes (washable and reusable), 1x Colorimetric Card, and a User Manual.
• Storage Conditions: Sealed tightly and stored at 4–30°C in a cool, dry place away from children. Do not freeze. Shelf-life is 12 months.
Get in Touch with Us Today!
Upholding absolute compliance metrics and shielding consumer health against illicit chemical preservation demands fast, field-ready testing solutions. Get in touch with our technical consulting team today to request bulk distribution quotes, purchase trial evaluation kits, or verify matrix parameters.
