1.09887

缓冲浓缩液

(phosphate), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 7.00 ± 0.02 (20°C) Titrisol^®

• 别名: Buffer concentrate for 500 ml buffer solution, pH 7.00 ± 0.02 (20°C)
• 分類程式碼代碼: 12161706
• NACRES: NA.25

属性

• 等級: analytical standard
• 品質等級: 100
• agency: according to DIN 19266
• 產品線: Titrisol^®
• pH值: 7.00 (20 °C in H₂O)
• 密度: 1.08 g/cm³ at 20 °C
• 應用: environmental; food and beverages; general analytical; industrial qc; pharmaceutical
• 格式: mixture
• 儲存溫度: 15-25°C

说明

一般說明

Titrisol^®浓缩标准缓冲液[磷酸盐；pH=7.00±0.02 (20 °C)]由ISO/IEC 17025认可校准实验室按照DIN 19268标准采用复合玻璃电极和5点校准法，对照符合DIN 19266标准认证的一级标准参考物质完成分析。Titrisol^®浓缩标准缓冲液兼具使用方便和极致精确的特点，适合用于pH测量仪的日常校准和监测。如配制即用型pH缓冲液，只需稀释Titrisol^®浓缩缓冲液即可。

應用

• 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).

特點和優勢

• 可溯源至NIST和PTB的一级标准参考物质
• 分析标准级
• 批次特定的详细分析证书(CoA)提供不确定性数据和可追溯性

分析報告

pH值（20 °C）：7.00+/-0.02
根据DIN 19266，使用标准缓冲液制备用参比物质进行多点校准（根据DIN 19268）后，用组合玻璃电极稀释至500 ml后测量。

法律資訊

Titrisol is a registered trademark of Merck KGaA, Darmstadt, Germany

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable