Buy Phosphate Buffered Saline 100ml Online
Buy Phosphate Buffered Saline 100ml Online (PBS) is one of the most essential and widely used solutions in modern biological and biochemical laboratories. Researchers across the fields of molecular biology, biotechnology, immunology, microbiology, pharmaceutical sciences, and cell culture depend on PBS because it provides a stable, physiologically compatible environment for handling biological materials. Its ability to maintain a consistent pH while preserving osmotic balance makes it an indispensable reagent in countless scientific procedures.
Phosphate Buffered Saline 100ml is particularly useful in laboratories that require larger working volumes for routine experimental workflows, sample preparation, washing procedures, and assay development. Whether used in academic research, biotechnology development, or pharmaceutical studies, PBS remains one of the most trusted laboratory solutions available.
This comprehensive guide explores the composition, functions, benefits, applications, storage requirements, and scientific significance of Phosphate Buffered Saline 100ml.
What Is Phosphate Buffered Saline?
Phosphate Buffered Saline, commonly known as PBS, is a water-based salt solution specifically formulated to maintain physiological pH and osmotic conditions similar to those found within living organisms.
PBS generally contains:
- Sodium chloride (NaCl)
- Potassium chloride (KCl)
- Sodium phosphate salts
- Potassium phosphate salts
- Purified water
These components work together to create a stable buffering system capable of maintaining a pH range that closely resembles physiological conditions. Because PBS is isotonic and non-toxic to many biological samples, it is commonly used during research procedures involving cells, tissues, proteins, and biomolecules.
The simplicity and effectiveness of PBS have made it a standard laboratory reagent used throughout the world.
Understanding the Importance of Buffer Solutions
Buffer solutions play a critical role in scientific research because biological systems are highly sensitive to changes in pH.
Even small fluctuations in acidity or alkalinity can affect:
- Protein structure
- Enzyme activity
- Cellular viability
- Molecular stability
- Experimental outcomes
PBS helps prevent these fluctuations by maintaining a relatively constant pH environment. The phosphate salts within the solution act as buffering agents that resist sudden changes in hydrogen ion concentration.
As a result, researchers can conduct experiments under more controlled and reproducible conditions.
Why Researchers Use PBS
PBS remains one of the most popular laboratory solutions because it offers several advantages.
Physiological Compatibility
PBS closely mimics the ionic concentration and osmotic pressure found in biological systems. This compatibility makes it suitable for handling sensitive samples.
Stable pH Control
The phosphate buffer system helps maintain consistent pH levels during experimental procedures.
Versatility
PBS can be used in a wide variety of scientific disciplines and laboratory protocols.
Cost-Effective Research Tool
PBS is relatively inexpensive compared to many specialised laboratory reagents while still providing reliable performance.
Reproducibility
The consistent composition of PBS helps support standardised experimental conditions and reproducible results.
These benefits explain why PBS is considered a foundational reagent in life science research.
Composition of Phosphate Buffered Saline
Although exact formulations may vary depending on the manufacturer and intended application, standard PBS typically contains carefully balanced concentrations of salts and phosphate compounds.
Each component serves a specific purpose:
Sodium Chloride
Helps maintain osmotic balance and ionic strength.
Potassium Chloride
Contributes to physiological compatibility and ionic regulation.
Sodium Phosphate
Functions as part of the buffering system responsible for maintaining pH stability.
Potassium Phosphate
Works alongside sodium phosphate to support buffering capacity.
Purified Water
Acts as the solvent that allows the salts and buffers to remain dissolved and evenly distributed.
The combination of these ingredients creates a highly reliable solution suitable for numerous biological applications.
PBS and Isotonic Conditions
One of PBS’s most important characteristics is that it is isotonic.
An isotonic solution contains a concentration of dissolved particles similar to that found within living cells and tissues.
This property is important because it helps prevent:
- Cell swelling
- Cell shrinkage
- Osmotic stress
- Membrane damage
- Sample degradation
Researchers rely on isotonic solutions when handling biological specimens because maintaining cellular integrity is often essential for obtaining reliable results.
PBS provides these conditions while remaining simple and easy to use.
Common Applications of Phosphate Buffered Saline 100ml
Cell Culture Research
PBS is extensively used in cell culture laboratories.
Researchers commonly use PBS to:
- Wash cultured cells
- Remove residual media
- Prepare samples
- Maintain cellular environments
- Support routine laboratory procedures
The gentle nature of PBS makes it suitable for many cell handling applications.
Molecular Biology
PBS plays an important role in molecular biology research.
Common uses include:
- Sample preparation
- Nucleic acid workflows
- Biological specimen handling
- Experimental buffer preparation
- Laboratory assays
Its consistent composition supports reliable molecular investigations.




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