The FSTest Organochlorines Rapid Test Kit is a professional-grade rapid screening tool engineered for the qualitative detection of organochlorine pesticide residues in fresh fruits and vegetables.

Organochlorines, including Endosulfan, Dieldrin, and Hexachlorocyclohexane (HCH), are highly persistent environmental pollutants heavily regulated in global agricultural trade. By eliminating the immediate necessity for complex laboratory equipment (such as HPLC or GC-MS), this field-ready assay compresses chemical extraction into a simplified room-temperature workflow, delivering reliable visual results within 8 to 10 minutes.

2. Key Benefits

High-Speed Field Turnaround: Complete the entire screening assay workflow and read stable visual results within 8 to 10 minutes post-sample-preparation.
Target Multi-Analyte Detection: Calibrated to yield dependable qualitative screenings for major organochlorine compounds (Endosulfan, Dieldrin, Hexachlorocyclohexane) at 5 mg/kg.
High Specificity & Zero Cross-Reactivity: Proven unaffected by non-target agrochemicals up to 1 mg/L (including Thiamethoxam, Triazophos, Parathion, Carbofuran, and Omethoate).
Safe & Operator-Friendly Formulation: The specialized extraction solution supplied in the kit is certified as safe and non-toxic for operators, allowing standard chemical waste disposal.
Convenient Room Temp Storage: Offers a full 12-month shelf life when sealed and stored at 4–30°C in a cool, dry location.

3. Technical Specifications & LOD Spectrum

Product Name	Organochlorines Rapid Test Kit (Colloidal Gold)
Detection Principle	Competitive Lateral Flow Immunochromatography
Pack Size	10 tests / kit
Assay Run Time & Volume	8–10 minutes (results invalid after 10 minutes); 100 µL test solution
Storage & Shelf Life	12 months sealed at 4–30°C in a cool, dry place (Do not freeze)

Detailed Target Compound Analytical Profiles & Limits of Detection (LOD)

Active Target Compound	CAS Registry Number	Molecular Formula & Weight	LOD Threshold
Endosulfan	115-29-7	C₉H₆Cl₆O₃S (406.925 g/mol)	5 mg/kg
Dieldrin	60-57-1	C₁₂H₈Cl₆O (380.91 g/mol)	5 mg/kg
Hexachlorocyclohexane (HCH)	6108-10-7	C₆H₆Cl₆ (290.83 g/mol)	5 mg/kg

4. Applicable Sample Types

Validated for multi-matrix organochlorine screening across agricultural fresh produce:

Fresh Fruit Commodities (Apples, citrus, stone fruits, berries) Leafy & Brassica Vegetables (Spinach, cabbage, kale, lettuce) Solanaceous & Root Vegetables (Tomatoes, peppers, carrots, potatoes) Agricultural Harvesting Points & Export Compliance Auditing

5. Test Procedure

STEP 1

Comminution

Cut the fresh fruit or vegetable sample into small pieces (approx. 0.5 cm × 0.5 cm). Weigh exactly 2.0 ± 0.1 g into a 30 mL sampling bottle.

STEP 2

Extraction

Add 5 mL of extracting solution, shake/vortex thoroughly for 2 minutes, and let stand for 1 minute to settle. (Centrifuge at 4000 rpm for 3 min if cloudy).

STEP 3

Load Cassette

Ensure 20–40°C cassette environment. Pipette 100 µL of prepared clear sample solution directly into the sample well of the cassette. Start timing.

STEP 4

Read at 8–10 Mins

Interpret visual lines strictly at 8–10 minutes. Visual readouts become strictly invalid after 10 minutes due to late chemical shifts.

Visual Results Determination Guide:

Negative (-): Both Control (C) line and Test (T) line develop a strong, distinct red band. Targeted organochlorine residues are safely below 5 mg/kg.
Positive (+): Control (C) line develops normally, but Test (T) line is visibly lighter or fails to appear → Organochlorines residue ≥ 5 mg/kg threshold limit.
Invalid: Control (C) line fails to show any visible color band. Re-testing with a new cassette is required.

6. Performance & Crucial Operational Controls

Adhere to strict operational parameters to ensure maximum screening accuracy:

Qualitative Screening Purpose: Engineered strictly for qualitative preliminary screening; not intended for precise quantitative concentration evaluation.
Time-Sensitive Exposure: Perform assay within 1 hour after removing cassette from foil pouch to prevent ambient moisture damage.
Environmental Thresholds: Maintain operating temperature between 5–40°C and relative humidity at 30%–80%, sheltered from wind.

7. Included Components & Auxiliary Equipment

Kit Components Included: 10 Test cassettes, Extracting solution (50 mL) x1, 30 mL Sampling bottles (x2), User Manual.
Required Equipment (Not Provided): Scissors, electronic balance (2.0 ± 0.1 g precision), micropipette (100 µL), centrifuge (optional, for turbid extracts), and timer.

Request Samples & Ordering Information

Evaluate the FSTest Organochlorines Rapid Test Kit (Colloidal Gold) in your fresh produce supply chain and export compliance screening workflows. Free evaluation sample packs are available for certified testing laboratories and agricultural exporters.

Email: service@fstestcorp.com | Website: www.fstestcorp.com