47mm Glass Base with Filtering Plate

A glass base with a filter plate for 47 mm membrane filters is a device used in laboratories for liquid filtration. The filter plate, typically made of fritted glass, serves as a support and evenly distributes the liquid over the 47 mm diameter membrane filter. This system enables the retention of particles, microorganisms, and other contaminants present in the liquid, ensuring precise and effective filtration. It is commonly used in microbiological analysis, quality control, and sample preparation for advanced analytical techniques, ensuring that samples are free of impurities and suitable for subsequent analysis. The glass construction ensures chemical and thermal resistance, facilitating the cleaning and reuse of the device.

Laboratory Uses

Microbiological Analysis:
— Water Filtration: Used to detect and quantify microorganisms in potable water, wastewater, and other water samples.
— Microorganism Cultivation: After filtration, the membranes can be incubated in culture media for the enumeration of bacterial colonies and other microorganisms.
Quality Control:
— Food and Pharmaceutical Industries: Liquid samples are filtered to ensure the absence of microbiological contaminants or unwanted particles.
— Beverage Production: The microbiological quality of water used in beverage manufacturing is analysed.
Sample Preparation:
— Mass Spectrometry and HPLC: Solutions are filtered to remove particles that could obstruct the equipment or interfere with the analyses.

How to Use

System Assembly: Place the glass base with the filter plate on a suitable stand. Secure a 47 mm membrane filter onto the filter plate.
Sample Preparation: Pour the liquid sample into the funnel placed over the membrane filter. Connect the system to a vacuum source to facilitate the passage of liquid through the membrane.
Filtration: Turn on the vacuum pump to start the filtration. The liquid will pass through the membrane filter, leaving particles and microorganisms retained on the membrane surface.
Post-Filtration: Remove the membrane filter for subsequent analysis (e.g., incubation in culture media for microbiological analysis). Clean the glass base and filter plate for reuse.

When to Use

— Before Critical Analyses: Used to prepare samples that must be free from contaminants and particles that could affect analytical results.
— During Environmental Monitoring: In water quality analysis to ensure compliance with health and safety standards.
— In Industrial Quality Control Processes: To ensure products and their components are free from undesirable contaminants, meeting the required specifications.

Advantages

Chemical and Thermal Resistance: Glass is inert and does not react with most chemicals, and it can withstand high temperatures, making sterilisation easy.
Reusability: Easy to clean and sterilise for repeated use, making them cost-effective in the long run.
Efficiency and Precision: Allow for even liquid distribution and effective filtration, crucial for obtaining accurate and reliable results.In summary, glass bases with filter plates for 47 mm membrane filters are essential tools in the laboratory for the precise and reliable filtration of liquids, employed in a variety of scientific and industrial applications.