Platinum Loop
Product Code : SCL-CLE-11935
The StemAids Platinum Loop (Inoculation Loop) is the gold standard for microbiology and flame testing. While nichrome loops are common, the platinum-iridium alloy (90% Pt, 10% Ir) is engineered for laboratories requiring rapid heating, near-instant cooling, and total resistance to oxidation. This ensures that the loop remains chemically inert and does not "pitting" or corrode over repeated sterilization cycles. Manufactured to high precision, it is an essential instrument for University Microbiology, Pathology, and Advanced Research.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Material |
Platinum-Iridium Alloy (90:10 ratio) |
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Standard Loop Diameters |
1mm,2mm,3mm,4mm,5mm |
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Wire Gauge |
Typically 24G to 26G (0.4mm to 0.5mm) |
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Thermal Properties |
Rapid heat dissipation (cools in 3-5 seconds) |
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Shaft Compatibility |
Standard 6mm handle interface (Aluminium or Brass) |
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Chemical Resistance |
Immune to oxidation; inert to most acids and alkalis |
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Durability |
High tensile strength; maintains loop shape at 1000?C+ |
Key Pedagogical & Laboratory Outcomes
- Inoculation Interface: Facilitates the understanding of Aseptic Technique. Learners identify how a sterile loop is used to transfer a small, measured inoculum of bacteria from a broth or agar plate to a new medium without contamination.
- Thermal Quantification: Enables rapid workflow; learners apply the platinum loop because it heats to redness and cools almost instantly, allowing them to perform multiple streaks in a shorter timeframe than nichrome allows.
- Flame Test Analysis: Supports the analysis of "Atomic Emission Spectra"; due to its total chemical inertness, students evaluate the characteristic flame colors of metal ions (like Cu2+ or Li+) without interference from the wire material itself.
- Isolation Evaluation: Provides a platform for evaluating colony purity; the smooth, precision-formed loop ensures that the agar surface is not gouged during the "Quadrant Streak" method, facilitating the growth of isolated colonies.
Material Comparison: Platinum vs. Nichrome
|
Feature |
Platinum-Iridium |
Nichrome |
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Cooling Time |
Excellent (Instant) |
Moderate (5-10 seconds) |
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Oxidation |
Zero (Non-scaling) |
High (Scales and pits over time) |
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Flame Interference |
None |
Slight (Yellow/Orange flicker) |
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Initial Cost |
High |
Low |
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Longevity |
Years |
Weeks/Months |
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Secure, anti-theft packaging. Given the high value of the precious metal, loops are individually packed in protective tubes or cases and nested within a secure shipment box.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Purity (Metal Assay), and a Certificate of Conformance (CoC).
- Inventory Control: Each loop is manufactured to a specific weight and length to ensure consistency across institutional inventory audits.
Direct OEM Sourcing Advantages
Procuring the StemAids Platinum Loop directly ensures vertical manufacturing control:
- Precision Loop Forming: Direct oversight ensures the loop is perfectly circular and "closed," preventing volume discrepancies when transferring 1μl or 10μl volumes.
- Fused Junctions: We ensure the loop-to-shank junction is smooth to prevent "bio-burden" trapment, making sterilization 100% effective.
- Direct Factory Inventory: Guaranteed availability of matching Inoculation Loop Handles (Insulated) and replacement wire by the centimetre.
- Quality Assurance: Every loop is inspected under magnification for surface "pitting" to ensure the smoothest possible streak on delicate agar surfaces.