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

Cyhalothrin is a widely monitored pyrethroid insecticide utilized extensively in global crop protection. By eliminating the immediate necessity for complex and costly laboratory infrastructure (such as HPLC or GC-MS), this field-ready assay compresses agricultural pesticide extraction into a simplified room-temperature workflow, serving as an indispensable first-line defense in fresh produce logistics, crop harvesting points, and corporate food safety compliance screening programs in just 5 to 8 minutes.

2. Key Benefits

High-Speed Field Turnaround: Complete the entire screening assay and achieve highly reliable visual result readouts within just 5 to 8 minutes post-sample-preparation.
Versatile Matrix Detection Limits: Dynamically targets regulatory cut-off thresholds ranging from 0.2 mg/kg up to 5 mg/kg by adjusting simple sample supernatant dilution ratios.
Extensive Fruit & Vegetable Adaptability: Officially validated across bulb vegetables, eggplants, heading cruciferous, broccoli, leafy greens, stone fruits (peach/nectarine), pome fruits (apple/pear), and tropical fruits (lychee).
High Specificity & Zero Cross-Reactivity: Proven entirely unaffected by non-target agrochemicals up to 10 mg/kg (including Thiamethoxam, Triazophos, Chlorothalonil, Carbofuran, and Omethoate).
Safe & Non-Toxic Formulation: Supplied with a specialized extraction solution certified as safe, non-toxic, and user-friendly for operators processing samples on-site.

3. Technical Specifications & LOD Spectrum

Product Name	Cyhalothrin Rapid Test Kit (Colloidal Gold)
Target Analyte Compound	Cyhalothrin (CAS: 68085-85-8 \| C₂₃H₁₉ClF₃NO₃ \| 449.85 g/mol)
Detection Principle	Competitive Lateral Flow Immunochromatography
Pack Size	10 tests / kit
Assay Run Time & Volume	5–8 minutes (results invalid after 8 minutes); 120 µL final prepared test solution
Storage & Shelf Life	12 months sealed at 4–30°C in a cool, dry place (Do not freeze)

Matrix-Specific Dilution Guide & Target LOD Spectrum (X & Y Dilution Protocol)

Applicable Agricultural Produce Matrix	Targeted LOD (mg/kg)	Supernatant X (µL)	Extracting Solution Y (µL)
Bulb vegetables (excl. Chinese chives), eggplant, zucchini, bitter melon, apple, pear, lychee	0.2 mg/kg	200 µL	0 µL
Chinese chives, celery, heading cruciferous (excl. broccoli), okra, peach, nectarine	0.5 mg/kg	200 µL	300 µL
Head cabbage, flowering Chinese cabbage, Chinese cabbage, cucumber	1.0 mg/kg	100 µL	400 µL
Broccoli, Chinese kale, spinach, common Chinese cabbage, leaf lettuce, romaine lettuce, stem lettuce leaves	2.0 mg/kg	100 µL	900 µL
Chili pepper	2.0 mg/kg	50 µL	950 µL
Amaranth, crown daisy	5.0 mg/kg	40 µL	960 µL

4. Applicable Sample Types

Extensively validated across diverse fresh produce commodities:

Bulb & Solanaceous Vegetables (Onion, garlic, Chinese chives, eggplant, chili pepper) Brassica & Leafy Greens (Head cabbage, broccoli, Chinese kale, spinach, lettuce, celery, amaranth, crown daisy) Cucurbits & Fruits (Cucumber, zucchini, bitter melon, okra, apple, pear, peach, nectarine, lychee)

5. Test Procedure

STEP 1

Extraction

Cut fresh sample into 0.5 cm pieces. Weigh 2 g into sampling bottle, add 3 mL extracting solution, shake 1 min, let stand 1 min. (Centrifuge if cloudy).

STEP 2

Matrix Dilution

Pipette X µL supernatant into a 2 mL tube, add Y µL extracting solution according to the matrix guide, and swirl/shake to mix thoroughly.

STEP 3

Microwell & Load

Ensure 20–40°C environment. Pipette 120 µL test solution into microwell, mix 3–5 times, stand 3 min. Transfer all to cassette sample well.

STEP 4

Read at 5–8 Mins

Interpret visual lines strictly at 5–8 minutes. Visual readouts become strictly invalid after 8 minutes due to late chemical shifts.

Visual Results Determination Guide:

Negative (-): Both Control (C) line and Test (T) line develop strong, distinct red bands. Cyhalothrin residue is safely below the targeted matrix LOD limit.
Positive (+): Control (C) line develops normally, but Test (T) line is visibly lighter or fails to appear → Cyhalothrin residue ≥ targeted matrix LOD 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.
Matrix Dilution Accuracy: Strictly execute the X & Y dilution ratio corresponding to the commodity type to calibrate reading against exact regulatory MRL cutoffs.
Strict Time Window: Read visual test results strictly between 5–8 minutes after loading the cassette; results observed after 8 minutes are invalid.

7. Included Components & Auxiliary Equipment

Kit Components Included: 10 Test cassettes, 10 Microwells, 10 Centrifuge tubes (2 mL), Extracting Solution (50 mL) x1, 30 mL Sampling bottles (x2), User Manual.
Required Equipment (Not Provided): Scissors, electronic balance (2 g precision), micropipettes (X & Y µL, 120 µL), vortexer, centrifuge (optional, for turbid extracts), and timer.

Request Samples & Ordering Information

Evaluate the FSTest Cyhalothrin Rapid Test Kit in your fresh produce supply chain and export quality assurance workflows. Free evaluation sample packs are available for certified testing laboratories and agricultural exporters.

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