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

Cyromazine is a widely monitored triazine insect growth regulator used extensively in global crop protection and pest control. By eliminating the immediate necessity for complex and costly laboratory infrastructure (such as HPLC or GC-MS), this field-ready assay compresses agricultural chemical extraction into a simplified room-temperature workflow, serving as an indispensable first-line defense in fresh produce logistics, harvesting hubs, and corporate food safety compliance screening programs in just 8 to 10 minutes.

2. Key Benefits

High-Speed Field Turnaround: Complete the entire screening assay and read stable, highly reliable visual results within just 8 to 10 minutes post-sample-preparation.
Versatile Matrix Detection Limits: Dynamically targets regulatory cut-off thresholds ranging from 0.5 mg/kg up to 20 mg/kg by adjusting simple sample supernatant dilution ratios.
Extensive Fruit & Vegetable Adaptability: Officially validated across cowpea, common bean, edible-pod pea, lentil, cantaloupe, mango, cucumber, broccoli, stem lettuce, bitter melon, zucchini, green onion, bell pepper, leaf lettuce, celery, ginger, leaf mustard, and sponge gourd.
Definite Visual Interpretation: Utilizes a sandwich lateral flow immunochromatographic format where an increasing insecticide concentration causes the Test (T) line to fade or disappear, removing analytical ambiguity.
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	Cyromazine Rapid Test Kit (Colloidal Gold)
Target Analyte Compound	Cyromazine (CAS: 66215-27-8 \| C₆H₁₀N₆ \| 166.1840 g/mol)
Detection Principle	Sandwich Lateral Flow Immunochromatography (Colloidal Gold)
Pack Size	10 tests / kit
Assay Run Time & Volume	8–10 minutes (results invalid after 10 minutes); 100 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)
Cowpea, common bean, edible-pod pea, pea, lentil, cantaloupe, mango	0.5 mg/kg	200 µL	100 µL
Cucumber, broccoli, stem lettuce	1.0 mg/kg	100 µL	200 µL
Bitter melon, zucchini	2.0 mg/kg	100 µL	500 µL
Green onion, bell pepper	3.0 mg/kg	800 µL	100 µL
Leaf lettuce, head lettuce, celery	4.0 mg/kg	550 µL	50 µL
Ginger	7.0 mg/kg	680 µL	200 µL
Leaf mustard, sponge gourd	10.0 mg/kg	20 µL	580 µL
Stem lettuce leaves	15.0 mg/kg	880 µL	20 µL
Romaine lettuce	20.0 mg/kg	1180 µL	20 µL

4. Applicable Sample Types

Extensively validated across diverse fresh produce commodities:

Legume Vegetables & Fruits (Cowpea, common bean, edible-pod pea, pea, lentil, cantaloupe, mango) Brassica & Leafy Greens (Broccoli, stem lettuce, leaf lettuce, head lettuce, romaine lettuce, celery, leaf mustard) Cucurbits, Alliums, Solanaceous & Roots (Cucumber, bitter melon, zucchini, sponge gourd, green onion, bell pepper, ginger)

5. Test Procedure

STEP 1

Extraction

Cut fresh sample into 0.5 cm pieces. Weigh 1 g into sampling bottle, add 5 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

Load Cassette

Ensure 20–40°C environment. Mount exactly 100 µL of prepared final test solution directly into the sample hole of 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 strong, distinct red bands. Cyromazine 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 → Cyromazine 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 8–10 minutes after loading the cassette; results observed after 10 minutes are invalid.

7. Included Components & Auxiliary Equipment

Kit Components Included: 10 Test cassettes, 10 Centrifuge tubes (2 mL), Extracting Solution (80 mL) x1, 30 mL Sampling bottles (x2), User Manual.
Required Equipment (Not Provided): Scissors, electronic balance (1 g precision), micropipettes (X & Y µL, 100 µL), vortexer, centrifuge (optional, for turbid extracts), and timer.

Request Samples & Ordering Information

Evaluate the FSTest Cyromazine 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