Respirometer with Stand

Product Code : SCL-CLE-11904

The StemAids Respirometer with Stand is a precision-engineered biological apparatus designed to measure the rate of respiration in small organisms (such as germinating seeds, insects, or snails) by quantifying oxygen consumption. The system utilizes a closed-circuit design where carbon dioxide (CO2) is chemically absorbed, allowing the volume change in the manometer to directly reflect O2 uptake. Manufactured to ISO 9001:2015 standards, this assembly includes a stable mounting rack, making it a critical tool for Physiology and Environmental Science laboratories.

Technical Specifications

Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)

• Metabolic Interface: Facilitates student understanding of Cellular Respiration. Learners identify the conversion of chemical energy and the resultant gas exchange in living tissues.
• Gas Law Quantification: Enables the calculation of Oxygen Consumption Rate; learners apply the displacement of manometric fluid to calculateO2 volume per unit of time (ml/min/g).
• Comparative Analysis: Supports the analysis of "Respiratory Quotients" (RQ); students evaluate how different substrates (carbohydrates vs. lipids) affect gas exchange by comparing CO2 production to O2
• Environmental Evaluation: Allows students to evaluate the impact of temperature on metabolic rates, observing how the rate of fluid movement in the manometer changes in response to thermal variables.

Functional Mechanics: The CO2 Absorption Principle

To ensure accuracy, a CO2 absorbent (typically Potassium Hydroxide (KOH) pellets or solution) is placed in the bottom of the chamber.

As the organism respires:

1. Oxygen is consumed, reducing the internal gas volume.
2. Carbon Dioxide is exhaled but immediately absorbed by the KOH.
3. The resulting net decrease in pressure pulls the manometric fluid toward the specimen chamber, providing a direct reading of O2

International Logistics & Compliance

StemAids ensures comprehensive OEM readiness for global institutional procurement:

• Packaging: Export-grade, high-density foam packaging. The U-tube manometer and glass chambers are nested in custom-cut inserts to prevent mechanical shock during transit.
• Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed "Step-by-Step Lab Protocol" for instructors.
• Durability: The metallic stand is treated with an anti-corrosive finish, ensuring stability and longevity even in humid laboratory environments.

Direct OEM Sourcing Advantages

Procuring the StemAids Respirometer directly ensures vertical manufacturing control:

• Manometric Precision: Direct oversight of the capillary boring ensures a uniform internal diameter, which is essential for consistent fluid displacement readings across multiple units.
• Hermetic Seal Verification: We pressure-test every bung and joint assembly to ensure the system is 100\text{%} airtight, eliminating the "leakage error" common in budget respirometers.
• Direct Factory Inventory: Guaranteed availability of individual replacement glass chambers or U-tubes, allowing for cost-effective maintenance of lab inventory.
• Quality Assurance: Every scale is laser-etched into the glass to prevent fading from chemical exposure, ensuring the apparatus remains readable over years of use.