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Buffer solution
| 产品编号： | 4058376 |
| 规格： | (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur® |
| 包装规格： | 30 X 30 ML |
| 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)】 | 4.0 (25 ℃ in H2O) |
| application(s) | environmental food and beverages general analytical industrial qc pharmaceutical |
| format【格式】 | mixture |
| storage temp.【储存温度】 | 10-30℃ |
基本信息
| General description【一般描述】 | The certified potassium hydrogen phthalate buffer solution is gravimetrically prepared using high-quality reagents at a registered calibration laboratory. It has a pH value of 4.01 at 25℃, measured using a combined glass electrode following a 5-point calibration method. The measurement is made in accordance with DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value of the buffer solution heavily depends on the temperature and therefore a constant temperature must be maintained during its use. |
| Application【应用】 | The buffer solution is used as a standard in analytical procedures for the calibration of pH measuring instruments or pH electrodes and as a control for the measurement of pH of other solutions. |
| 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 | WGK 2 |
