Wilmott’s Bubbler
Product Code : SCL-CLE-11902
The StemAids Wilmott’s Bubbler is a specialized glass apparatus engineered for the empirical measurement of the rate of photosynthesis in aquatic plants (typically Hydrilla or Elodea). By capturing and counting the oxygen bubbles evolved during the light-dependent reactions, it allows students to quantify how external variables—such as light intensity, CO? concentration, and temperature—affect metabolic speed. Manufactured to ISO 9001:2015 standards, it is an essential tool for Plant Physiology and General Biology laboratories.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material |
High-clarity Borosilicate Glass 3.3 (Thermal & Chemical resistant) |
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Components |
Wide-mouth glass reservoir, internal capillary delivery tube, and stopper |
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Reservoir Volume |
Typically 100ml to 250ml |
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Capillary Precision |
Fine-bore tip designed for uniform bubble formation |
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Mounting |
Self-supporting stable base or compatible with standard lab clamps |
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Usage |
Ideal for "Bubble Counting" and "Gas Collection" experiments |
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ISO Compliance |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
7017.90.10 (Laboratory Glassware) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Physiological Interface: Facilitates the observation of Gas Exchange. Students identify the correlation between metabolic activity and the physical release of oxygen from plant tissues.
- Metabolic Quantification: Enables the calculation of the Photosynthetic Rate; learners apply mathematical modeling to record the number of bubbles per minute (bubbles/min) under varying conditions.
- Variable Analysis: Supports the analysis of "Limiting Factors"; students evaluate the I=1/d2 (Inverse Square Law) by moving a light source at measured distances from the bubbler and observing the change in bubble frequency.
- Experimental Evaluation: Allows students to evaluate the purity of the evolved gas (Oxygen) by collecting it in the upper chamber and performing a "glowing splint" test.
Experimental Procedure Note
To optimize results in a laboratory setting, it is recommended to use a dilute solution of Sodium Bicarbonate (NaHCO3) in the reservoir. This provides an ample supply of dissolved carbon dioxide, ensuring that CO? does not become a limiting factor while students test the effects of light or temperature.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, high-protection packaging. The delicate internal capillary tube is specially braced with shock-absorbent material to prevent snapping during maritime transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a standardized experiment protocol for instructors.
- Durability: The Borosilicate 3.3 glass is highly resistant to "fogging" or scratching, maintaining the optical clarity required for accurate bubble counting over years of use.
Direct OEM Sourcing Advantages
Procuring the StemAids Wilmott’s Bubbler directly ensures vertical manufacturing control:
- Calibrated Tip Geometry: Direct oversight of the capillary tip ensure bubbles are released at a consistent size, which is critical for comparative data sets across different student groups.
- Optical Neutrality: We ensure the reservoir glass is free from distortions, allowing students to count bubbles easily from any angle without parallax error.
- Direct Factory Spares Availability: Guaranteed availability of replacement internal tubes and stoppers, preventing a single broken component from rendering the entire apparatus unusable.
- Quality Assurance: Every unit is tested for seal integrity around the stopper to ensure that gas is directed exclusively through the capillary for accurate measurement.