Bacteriostatic Water, USP, is a sterile laboratory diluent that meets the stringent standards of the United States Pharmacopeia (USP), with a minimum of 99.9% purity and a bacteriostatic preservative, typically benzyl alcohol at a concentration of approximately 0.9%. This ensures that the water remains sterile for a prolonged period, with a shelf life of up to 2 years when stored properly, and can be used in laboratory settings for the preparation of research materials, with over 95% of laboratories relying on USP-grade water for their experiments. The use of Bacteriostatic Water, USP, is crucial in maintaining the integrity of research results, as it prevents the growth of microorganisms that can contaminate and compromise the accuracy of laboratory tests, with the USP standards being adhered to by suppliers such as Alpha Amino.
Importance of USP Grade in Laboratory Settings
The USP grade is a guarantee of the quality and purity of the Bacteriostatic Water, which is essential in laboratory settings where even the slightest contamination can affect the results of experiments. The USP standards, such as those outlined in USP General Chapters: Sterility <71> and Antimicrobial Effectiveness <51>, ensure that the water meets the required levels of sterility and antimicrobial effectiveness. This is particularly important in applications where the water is used as a diluent for research materials, such as peptides and proteins, which can be sensitive to contamination.
Specifications of Bacteriostatic Water, USP
The specifications of Bacteriostatic Water, USP, are outlined in the USP standards, which include requirements for sterility, antimicrobial effectiveness, and purity. The water must be sterile, with no detectable levels of microorganisms, and must contain a bacteriostatic preservative, such as benzyl alcohol, to prevent the growth of microorganisms. The specifications also include requirements for the packaging and labeling of the water, which must be done in a way that prevents contamination and ensures the integrity of the product. The following table summarizes the key specifications of Bacteriostatic Water, USP:
| Specification |
Requirement |
| Sterility |
No detectable levels of microorganisms |
| Antimicrobial Effectiveness |
Must meet the requirements of USP General Chapter <51> |
| Purity |
Minimum of 99.9% purity |
| Bacteriostatic Preservative |
Typically benzyl alcohol at a concentration of approximately 0.9% |
Applications of Bacteriostatic Water, USP
Bacteriostatic Water, USP, has a wide range of applications in laboratory settings, including the preparation of research materials, such as peptides and proteins, and the dilution of laboratory reagents. It is also used in the preparation of samples for analysis, such as in chromatography and spectroscopy. The use of Bacteriostatic Water, USP, ensures that the results of experiments are accurate and reliable, and that the integrity of the research materials is maintained. For example, when dissolving lyophilized peptides, Bacteriostatic Water, USP, is often used to prevent the growth of microorganisms that can contaminate the sample.
Handling and Storage of Bacteriostatic Water, USP
The handling and storage of Bacteriostatic Water, USP, are critical in maintaining its quality and purity. The water should be handled using aseptic technique, with sterile pipettes and containers, to prevent contamination. It should be stored in a cool, dry place, away from direct sunlight, and should not be exposed to temperatures above 25°C or below 2°C. The water should also be used within the expiration date, which is typically 2 years from the date of manufacture. Bacteriostatic Water from Alpha Amino is available in a range of sizes, including 10ml and 30ml vials, and can be purchased along with other research supplies.
Quality Control and Assurance
The quality control and assurance of Bacteriostatic Water, USP, are critical in ensuring that the product meets the required standards. The water is tested for sterility, antimicrobial effectiveness, and purity, using a range of techniques, including chromatography and spectroscopy. The testing is done in accordance with USP standards, such as Water for Pharmaceutical Purposes <1231>, and the results are verified by independent laboratories. The quality control and assurance processes ensure that the Bacteriostatic Water, USP, is of the highest quality and purity, and that it meets the required standards for use in laboratory settings.
Frequently asked questions
What is the shelf life of Bacteriostatic Water, USP?
The shelf life of Bacteriostatic Water, USP, is typically 2 years from the date of manufacture, when stored properly in a cool, dry place. The water should be used within the expiration date to ensure that it remains sterile and effective. It is also important to check the packaging and labeling of the water for any signs of damage or contamination, and to handle the water using aseptic technique to prevent contamination.
Can Bacteriostatic Water, USP, be used for human or veterinary use?
No, Bacteriostatic Water, USP, is not intended for human or veterinary use. It is a laboratory reagent, and its use is limited to laboratory settings, such as the preparation of research materials and the dilution of laboratory reagents. The water is not approved for use in humans or animals, and its use in such applications is strictly prohibited.
What is the difference between Bacteriostatic Water, USP, and sterile water?
The main difference between Bacteriostatic Water, USP, and sterile water is the presence of a bacteriostatic preservative, such as benzyl alcohol, in the Bacteriostatic Water, USP. This preservative prevents the growth of microorganisms in the water, and ensures that the water remains sterile for a prolonged period. Sterile water, on the other hand, is free from microorganisms, but it may not contain a bacteriostatic preservative, and may not remain sterile for as long as Bacteriostatic Water, USP.
Can Bacteriostatic Water, USP, be used for the preparation of samples for analysis?
Yes, Bacteriostatic Water, USP, can be used for the preparation of samples for analysis, such as in chromatography and spectroscopy. The water is sterile and free from microorganisms, and it can be used to dilute laboratory reagents and prepare samples for analysis. However, it is important to handle the water using aseptic technique, and to prevent contamination of the samples and the water.
Where can I purchase Bacteriostatic Water, USP?
Bacteriostatic Water, USP, can be purchased from a range of suppliers, including Alpha Amino. The water is available in a range of sizes, including 10ml and 30ml vials, and can be purchased along with other research supplies. It is also available from other laboratory supply companies, and can be ordered online or by phone.
Alpha Amino products are sold strictly for laboratory and research use only and are not intended for human or veterinary use, diagnosis, treatment, or consumption.
