β-Lactams + Tetracyclines + Streptomycins + Chloramphenicol (CAP) 4-in-1 Rapid Test Strip
Cat NO.: 11107 | Brand: FSTest
7 mins Rapid Readout Time | 0.3 µg/kg Ultra-Strict CAP LOD | 96 Tests Commercial Bulk Pack | 30 Days Ambient Transport Allowed |
The FSTest β-Lactams + Tetracyclines + Streptomycins + Chloramphenicol (CAP) 4-in-1 Rapid Test Strip (CatNO: 11107) is a professional-grade, industrial multiplex screening tool engineered for the simultaneous, independent detection of four major high-risk veterinary drug residue categories in dairy products.
Antibiotic and antimicrobial residues in dairy production present critical food safety challenges and are subject to strict Maximum Residue Limits (MRLs) or absolute zero-tolerance prohibitions worldwide. By consolidating four distinct veterinary drug screenings into a single, straightforward assay loop, this kit eliminates the necessity for complex multiple extraction protocols or separate ELISA microplate platforms. It compresses essential multi-residue milk verification into a simplified, field-ready ambient workflow for dairy farms, collection stations, pasteurization plants, and QA laboratories.
High-Speed Quad-Multiplex Screening: Maps out a comprehensive safety profile spanning four major contaminant groups in a single test sequence with visual results in just 7 minutes.
Ultra-High Sensitivity Thresholds: Calibrated to meet or surpass global regulatory cutoffs, including Chloramphenicol down to 0.3 µg/kg, Streptomycins down to 50 µg/kg, Tetracyclines down to 5 µg/kg, and Beta-Lactams down to 1–2 µg/kg.
Extensive Dairy Matrix Adaptability: Formulated for multi-matrix sample validation, offering reliable screening across raw milk, pasteurized liquid milk, and reconstituted milk powder.
Zero-Ambiguity Visual Layout: Features four separate invisible Test lines (T1, T2, T3, T4) paired with an integrated internal Control (C) line for clear reading without cross-line interference.
Heavy-Duty Commercial Specification: Supplied in a bulk 96-test pack (96 test strips and 96 dry-reagent precoated microwells) optimized for high-throughput batch auditing.
Flexible Shelf Life & Transport: Offers an 18-month refrigerated lifespan (2–8°C) with an advanced ambient tolerance profile permitting room-temperature transport and field deployment for up to 30 days.
| Product Name | β-Lactams + Tetracyclines + Streptomycins + CAP 4-in-1 Rapid Test Strip |
|---|---|
| Catalog Number (CatNO) | 11107 |
| Assay Mechanism | Competitive Multiplex Lateral Flow Immunochromatography |
| Pack Size | 96 Tests / Kit (96 Test Strips + 96 Precoated Microwells) |
| Test Time | 3 minutes microwell incubation + 7 minutes strip reaction |
| Storage & Shelf Life | 18 months at 2–8°C; allows up to 30 days ambient transport/storage at room temp |
| Target Group (Test Line) | Target Analyte Compound | CAS Number | Formula / Mol. Weight | LOD Cutoff |
|---|---|---|---|---|
| 1. Chloramphenicol (T1 Line) | Chloramphenicol (CAP) | 56-75-7 | C₁₁H₁₂Cl₂N₂O₅ (323.13 g/mol) | 0.3 µg/kg |
| 2. Streptomycins (T2 Line) | Streptomycin sulfate | 3810-74-0 | C₂₁H₄₂N₇O₁₈ (728.69 g/mol) | 50 µg/kg |
| Dihydrostreptomycin | 5490-27-7 | C₂₁H₄₁N₇O₁₂ (730.71 g/mol) | 50 µg/kg | |
| 3. Tetracyclines (T3 Line) | Tetracycline | 60-54-8 | C₂₂H₂₄N₂O₈ (444.44 g/mol) | 5 µg/kg |
| Chlortetracycline | 57-62-5 | C₂₂H₂₃ClN₂O₈ (478.88 g/mol) | 5 µg/kg | |
| Oxytetracycline | 79-57-2 | C₂₂H₂₄N₂O₉ (460.43 g/mol) | 5 µg/kg | |
| Doxycycline | 100929-47-3 | C₂₂H₂₅ClN₂O₈ (480.89 g/mol) | 5 µg/kg |
| 4. Beta-Lactams (T4 Line) Compound | CAS Registry Number | LOD Threshold (µg/kg) |
|---|---|---|
| Penicillin G Sodium | 69-57-8 | 1–2 µg/kg |
| Penicillin-V | 87-08-1 | 2–4 µg/kg |
| Piperacillin | 61477-96-1 | 2–4 µg/kg |
| Ampicillin Trihydrate | 7177-48-2 | 2–4 µg/kg |
| Amoxicillin | 61336-70-7 | 2–4 µg/kg |
| Oxacillin | 66-79-5 | 2–4 µg/kg |
| Cloxacillin | 61-72-3 | 2–4 µg/kg |
| Cefoperazone | 62893-19-0 | 2–4 µg/kg |
| Cephalonium | 5575-21-3 | 2–4 µg/kg |
| Cefacetrile | 10206-21-0 | 8 µg/kg |
| Nafcillin | 147-52-4 | 10 µg/kg |
| Cefapirin | 21593-23-7 | 10 µg/kg |
| Cephalothin | 153-61-7 | 10 µg/kg |
| Cefquinome sulfate | 118443-89-3 | 20 µg/kg |
| Ceftiofur | 80370-57-6 | 50 µg/kg |
| Ceftriaxone | 73384-59-5 | 100 µg/kg |
| Cefazolin | 25953-19-9 | 100 µg/kg |
| Cefalexin | 23325-78-2 | 1000 µg/kg |
Extensively validated for multi-matrix dairy applications across the supply chain:
STEP 1 Sample Prep Equilibrate milk to 20–40°C. For powder, mix 1 g powder in 9 mL distilled water. Take out strips/wells and re-cap container immediately. | STEP 2 Mix & Incubate Pipette 150 µL milk into precoated microwell. Mix thoroughly by repeated pipetting and incubate for 3 min (at room temp or 40°C if ambient < 20°C). | STEP 3 Insert Strip Insert test strip with sample end down into microwell. Start timing immediately for lateral flow reaction. | STEP 4 Read at 7 Mins Read visual lines strictly at 7 minutes. Results become invalid after 10 minutes due to post-reaction chemical shifts. |
Negative (-): Control (C) and all four Test lines (T1, T2, T3, T4) show strong, distinct red bands matching or darker than C-line. (All 4 groups below cutoff).
T1 Positive (+): T1 line is visibly lighter than C-line or disappears completely, Chloramphenicol(CAP) residue ≥ 0.3 µg/kg.
T2 Positive (+): T2 line is visibly lighter than C-line or disappears, Streptomycins residue ≥ 50 µg/kg.
T3 Positive (+): T3 line is visibly lighter than C-line or disappears, Tetracyclines residue ≥ 5 µg/kg.
T4 Positive (+): T4 line is visibly lighter than C-line or disappears, Beta-Lactams residue ≥ threshold limit.
Multiplex Positive (+): Multiple faded or absent T-lines indicate co-existing multi-drug contamination.
Invalid: Control (C) line fails to develop a visible color band. Re-testing with a new strip is required.
Adhere to strict operational parameters to ensure maximum screening accuracy:
Qualitative Screening Purpose: Engineered strictly for rapid qualitative prescreening and preliminary field audits. Confirmatory laboratory testing is recommended if necessary.
Air Exposure Window: Perform test within 30 minutes after pulling strips from vial to prevent dampness and loss of reactivity.
Meticulous Pipetting: Thoroughly resuspend dry microwell reagents via repeated fluidic pipetting; improper mixing impairs line development.
Environmental Limits: Maintain operating relative humidity at 30%–80%. Avoid wind currents and testing above 40°C. Do not touch white membrane area.
Dairy Portable Incubator Block (40°C): Constant temperature incubator block for standardized testing when ambient temperature is below 20°C.
Email: service@fstestcorp.com | Website: www.fstestcorp.com
Manufacturer: FSTest Co., Ltd.
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