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Buffer solution
| 产品编号： | 4058401 |
| 规格： | (di-sodium tetraborate), traceable to SRM from NIST and PTB pH 9.22 (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 |
| product line【产品线】 | Certipur® |
| pH【pH值(酸碱度)】 | 9.2 (25 ℃ in H2O) |
| bp | 100 ℃/1013 hPa |
| density | 1.00 g/cm3 at 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】 | 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). |
| Application【应用】 | Certipur® buffer solution (di-sodium tetraborate buffer; pH 9.22 at 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. |
| Features and Benefits【特点和优势】 |
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| 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 |
