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

Carbaryl is a widely monitored carbamate insecticide. By eliminating the immediate necessity for complex and costly laboratory infrastructure, this field-ready assay compresses agricultural chemical extraction into a simplified room-temperature workflow, delivering highly reliable visual results in just 5 to 8 minutes for fresh produce supply chains and corporate food safety compliance screening programs.

2. Key Benefits

High-Speed Field Turnaround: Complete the entire workflow and read stable visual results within 5 to 8 minutes post-sample-preparation.
Matrix-Specific Limits of Detection: Dynamically targets regulatory cut-off thresholds ranging from 0.5 mg/kg up to 5 mg/kg by adjusting simple sample supernatant dilution ratios.
Extensive Fruit & Vegetable Adaptability: Validated across Chili pepper, Carrot, Bulb, Brassica, Leafy, Solanaceous, Melon, Leguminous, Stem, Root/Tuber, Sprouting, and Aquatic vegetables.
High Specificity & Zero Cross-Reactivity: Proven unaffected by non-target agrochemicals up to 1 mg/L (including Carbofuran, Carbendazim, Triazophos, and Chlorothalonil).
Safe & Non-Toxic Formulation: Supplied with a certified safe and non-toxic specialized extraction solution for hassle-free processing on-site.

3. Technical Specifications & LOD Spectrum

Product Name	Carbaryl Rapid Test Kit (Colloidal Gold)
Target Analyte Compound	Carbaryl (CAS: 63-25-2 \| C₁₂H₁₁NO₂ \| 201.22 g/mol)
Detection Principle	Competitive Inhibition Lateral Flow Immunochromatography
Pack Size	10 tests / kit
Assay Run Time & Volume	5–8 minutes (results invalid after 8 minutes); 100 µL final prepared 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 Commodity Matrix	Targeted LOD (mg/kg)	Supernatant X (µL)	Extracting Solution Y (µL)
Chili pepper, Carrot	0.5 mg/kg	100 µL	0 µL
Bulb, Brassica, Leafy, Solanaceous, Melon, Leguminous, Stem, Root/Tuber, Sprouting & Aquatic Vegetables	1.0 mg/kg	100 µL	100 µL
Head cabbage	2.0 mg/kg	100 µL	300 µL
Bok choy	5.0 mg/kg	100 µL	900 µL

4. Applicable Sample Types

Extensively validated across diverse fresh produce categories:

Bulb & Brassica Vegetables (Leek, garlic sprout, scallion, onion, broccoli, cabbage, kale) Leafy & Solanaceous (Spinach, celery, lettuce, bok choy, tomato, eggplant, pepper, chili) Melon & Leguminous (Cucumber, zucchini, winter melon, pea, cowpea) Stem, Root, Sprouting & Aquatic (Carrot, potato, ginger, yam, lotus root)

5. Test Procedure

STEP 1

Extraction

Cut produce 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 vortex for 10 seconds to mix thoroughly.

STEP 3

Load Cassette

Ensure 20–40°C environment. Mount exactly 100 µL of prepared final sample solution directly into the sample hole of the cassette. Start timing.

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. Carbaryl 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 → Carbaryl 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, 2 mL Centrifuge tubes (x10), Extracting Solution (50 mL) x1, 30 mL Sampling bottles (x2), User Manual.
Required Equipment (Not Provided): Scissors, electronic balance, micropipettes (X & Y µL, 100 µL), vortexer, centrifuge (optional, for cloudy extracts), and timer.

Request Samples & Ordering Information

Evaluate the FSTest Carbaryl Rapid Test Kit (Colloidal Gold) 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