您的位置：首页 > 产品中心 > Buffer solution
Buffer solution
| 产品编号： | 4058391 |
| 规格： | di-sodium hydrogen phosphate/potassium dihydrogen phosphate, traceable to NIST, traceable to PTB, pH 6.88 (20 °C), Certipur® |
| 包装规格： | 1 L |
| 产品类别： | 进口试剂 |
| 品牌： | Supelco |
| 优惠价： | 立即咨询 |
产品性质
| Quality Level【质量水平】 | 300 |
| grade【等级】 | certified reference material |
| agency | traceable to NIST traceable to PTB |
| product line【产品线】 | Certipur® |
| composition【组成】 | di-sodium hydrogen phosphate/potassium dihydrogen phosphate |
| pH【pH值(酸碱度)】 | 6.88 (20 ℃) |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| format【格式】 | mixture |
| storage temp.【储存温度】 | 15-25℃ |
基本信息
| General description【一般描述】 | Certipur® buffer solution [di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer; pH 6.88 (20 ℃)] is intended for use as a calibration standard for pH instruments or pH electrodes or as a control sample for measuring the pH value. The ready-to-use Certipur® buffer solutions are prepared gravimetrically in our ISO/IEC 17025 accredited calibration laboratory from high-purity salts, acids and bases diluted in high-purity water. All balances are regularly calibrated with analytical weight sets traceable to primary standard reference materials from NIST and PTB. The pH-value is measured to the highest precision using a combined glass electrode after 5-point calibration (according to DIN 19268) against reference buffer solutions (according to DIN 19266, IUPAC, NIST, Ph.Eur. and USP). |
| Features and Benefits【特点和优势】 |
|
| Legal Information【法律信息】 | CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany |
安全信息
| Storage Class Code【储存分类代码】 | 12 - Non Combustible Liquids |
| WGK | nwg |
