Description
Specifications Table
Product Name – Buffer solution, pH 7.41 AVS TITRINORM® buffers at 25 °C
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Analytical Reagent (AR), NIST-Traceable
Application – pH meter calibration, buffer preparation, electrochemical analysis
Product Overview
This AVS TITRINORM® pH 7.41 buffer solution is a high-precision reference standard designed for accurate pH meter calibration at 25°C. Formulated with analytical-grade reagents, it ensures reliable and reproducible results in laboratory settings where precise pH control is critical. The solution is NIST-traceable, guaranteeing compliance with international calibration standards, and is ready-to-use without requiring additional dilution or preparation. Its stable composition minimizes drift over time, making it ideal for frequent recalibration in research, quality control, and industrial applications. The buffer is packaged in a 500 ml HDPE bottle with a tamper-evident seal to prevent contamination and ensure long-term stability. Whether used in routine lab maintenance or specialized electrochemical analysis, this buffer solution delivers consistent performance, reducing measurement errors and improving experimental accuracy. The pH 7.41 value aligns with physiological conditions, making it particularly useful for biochemical and biomedical research where neutral pH calibration is essential.
FAQs
1. What is the shelf life of this pH 7.41 buffer solution?
The unopened solution has a shelf life of 24 months from the date of manufacture when stored at room temperature. Once opened, it remains stable for up to 6 months if properly sealed and protected from contamination.
2. Can this buffer be used for calibrating pH meters at temperatures other than 25°C?
The solution is standardized for 25°C, but temperature correction tables are available for adjustments. For best accuracy, allow the buffer to equilibrate to the calibration temperature before use.
3. Is this buffer compatible with glass and epoxy-body pH electrodes?
Yes, the solution is chemically compatible with both glass and epoxy-body electrodes. However, always rinse electrodes with distilled water between measurements to prevent cross-contamination.
4. How should I store this buffer solution to maintain its accuracy?
Store the bottle tightly sealed at room temperature (15–25°C), away from direct sunlight and moisture. Avoid freezing, as it may alter the buffer’s composition.
5. Are there alternatives to this buffer for calibrating at neutral pH?
Alternatives include pH 7.00 phosphate buffers, but this pH 7.41 solution is preferred for applications requiring physiological pH alignment, such as cell culture or enzyme assays.
