Sigma-Aldrich Buffer Concentrate (Phosph

Grade

analytical standard

Quality Level

100

Agency

according to DIN 19266

Product Line

Titrisol^®

pH

7.00 (20 °C in H₂O)

Density

1.08 g/cm³at 20 °C

Application(S)

environmental
food and beverages
general analytical
industrial QC
pharmaceutical

Format

mixture

Storage Temp.

15-25°C

Related Categories

Physical & Chemical Property Standards

General Description

The Titrisol^®reference buffer concentrate [phosphate; pH=7.00±0.02 (20 °C)] is analyzed in the ISO/IEC 17025 accredited calibration laboratory with a combined glass electrode and 5-point calibration according to DIN 19268 against a certified primary standard reference material following DIN 19266. The Titrisol^®concentrated buffer material combines ease of use and maximum precision for the routine calibration and monitoring of pH instruments. To prepare the ready-to-use pH buffer solution, simply dilute the Titrisol^®buffer concentrate.

Application

• A novel and efficient voltammetric sensor for the simultaneous determination of alizarin red S and tartrazine:Utilizing buffer concentrates, this study develops a poly(leucine) functionalized carbon paste electrode. It demonstrates the crucial role of buffer solutions in enhancing the accuracy and sensitivity of voltammetric sensors in environmental and biochemical assays (Moulya et Al., 2024).


• Nitrocellulose for Prolonged Permeation of Levofloxacin HCl-Salicylic Acid In Situ Gel:Research grade buffer concentrate is employed to maintain pH stabilization during the formulation of nitrocellulose-based in situ gels, improving drug delivery systems for pharmaceutical applications (Khaing et Al., 2024).


• The development of lateral flow devices for urinary biomarkers to assess kidney health:This study integrates high-purity buffer concentrates for the optimal performance of lateral flow devices, underscoring their importance in clinical diagnostics and biochemical assays (D′Souza et Al., 2024).


• Determination of lamotrigine in human plasma by HPLC-PDA:Buffer concentrates are crucial in the forensic analysis of lamotrigine levels in plasma, illustrating their significance in enhancing the reliability and accuracy of pharmaceutical testing (Sánchez-Sellero et Al., 2024).


• On-Chip Electrochemical Sensing with an Enhanced Detecting Signal Due to Concentration Polarization-Based Analyte Preconcentration:The use of buffer concentrates is essential in creating on-chip electrochemical sensors, facilitating significant advancements in analytical chemistry through improved detection signals (Park et Al., 2024).

Features And Benefits

• Traceable to primary standard reference materials from NIST and PTB
• Analytical standard Grade
• Uncertainty data and traceability are documented in a comprehensive and batch-specific Certificate of Analysis.

Analysis Note

pH-value (20 °C): 7.00 +/- 0.02
Measured after dilution to 500 mL with a combination glass electrode after multiple point calibration (according to DIN 19268) with reference materials for the preparation of standard buffer solutions according to DIN 19266.Titrisol is a registered trademark of Merck KGaA, Darmstadt, Germany