Bottle Top Dispensers

Bottle Top Dispensers

Bottle top dispensers are laboratory instruments designed for accurately dispensing a specific volume of liquid from a reagent bottle. These dispensers are commonly used in analytical, biochemical, and clinical laboratories where precise liquid handling is crucial. Here are some key features and information about bottle top dispensers:

  1. Design:

    • Attachment: Bottle top dispensers are typically attached directly to the neck of a reagent bottle.
    • Construction: They consist of a dispensing unit with a piston mechanism and a volume adjustment system.

  2. Volume Adjustment:

    • Precision: Bottle top dispensers allow users to set and adjust the dispensing volume with high precision.
    • Digital or Analog: Depending on the model, volume adjustment can be done manually (analog) or digitally for more accurate control.

  3. Compatibility:

    • Bottle Sizes: Most dispensers are designed to fit standard laboratory reagent bottles with different thread sizes.
    • Chemical Compatibility: The materials used in the construction of bottle top dispensers are often chemically resistant to ensure compatibility with a wide range of liquids.

  4. Applications:

    • Routine Dispensing: These dispensers are commonly used for routine dispensing of liquids in laboratory applications.
    • Reagent Handling: Bottle top dispensers are suitable for handling various reagents, chemicals, and solutions.

  5. Features:

    • Anti-drip Design: Many bottle top dispensers are designed to prevent dripping and ensure accurate dispensing.
    • Easy Calibration: They often have a simple calibration process to maintain accuracy over time.
    • Autoclavability: Some models are autoclavable, allowing for sterilization between uses.

  6. Working Principle:

    • Piston Mechanism: The dispensing mechanism typically involves a piston that moves within a cylinder to aspirate and dispense liquids.
    • Valve System: A valve system controls the flow of liquid, allowing for precise dispensing.

  7. Multiple Dispensing Modes:

    • Continuous Dispensing: Some dispensers offer a continuous dispensing mode for longer dispensing durations.
    • Stepper Function: Some models have a stepper function that allows dispensing in smaller increments.

  8. Cleaning and Maintenance:

    • Easy Disassembly: Many bottle top dispensers can be easily disassembled for cleaning and maintenance.
    • Long-Term Reliability: Proper maintenance ensures long-term reliability and accuracy.

Bottle top dispensers are particularly useful when working with reagents that need to be dispensed accurately and efficiently, such as in titrations, sample dilutions, or other liquid handling processes in the laboratory. When selecting a bottle top dispenser, it's important to consider the required volume range, chemical compatibility, and the specific needs of the laboratory application.

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