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Merck
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主要文件

1.09887

Supelco

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)

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About This Item

UNSPSC代码:
12161706
NACRES:
NA.25

等级

analytical standard

质量水平

100

Agency

according to DIN 19266

产品线

Titrisol®

pH值（酸碱度）

7.00 (20 °C in H2O)

密度

1.08 g/cm3 at 20 °C

应用

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

包装形式

mixture

储存温度

15-25°C

相关类别

一般描述

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。

应用


  • 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).

特点和优势

  • 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

分析说明

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。

法律信息

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

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标准

产品编号
说明
价格

1.09889

缓冲浓缩液, (boric acid/potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 9.00 ± 0.02 (20°C) Titrisol®

1.09892

缓冲浓缩液, (phosphate/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 12.00 ± 0.05 (20°C) Titrisol®

1.09884

Buffer concentrate, (citrate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 4.00 ± 0.02 (20°C) Titrisol®

1.09886

Buffer concentrate, (citrate/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 6.00 ± 0.02 (20°C) Titrisol®

1.09890

Buffer concentrate, (boric acid/potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 10.00 ± 0.05 (20°C) Titrisol®

1.09885

Buffer concentrate, (citrate/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 5.00 ± 0.02 (20°C) Titrisol®

1.09883

Buffer concentrate, (citrate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 3.00 ± 0.02 (20°C) Titrisol®

1.09882

Buffer concentrate, (citrate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 2.00 ± 0.02 (20°C) Titrisol®

1.09893

缓冲浓缩液, (potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 13.00 ± 0.05 (20°C) Titrisol®

1.09881

Buffer concentrate, (glycine/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 1.00 ± 0.02 (20°C) Titrisol®

1.09888

Buffer concentrate, (borate/hydrochloric acid), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 8.00 ± 0.02 (20°C) Titrisol®

1.09880

Buffer concentrate, (boric acid/potassium chloride/sodium hydroxide), traceable to SRM of NIST and PTB for 500 ml buffer solution, pH 11.00 ± 0.05 (20°C) Titrisol®

储存分类代码

12 - Non Combustible Liquids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

分析证书(COA)

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