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Certified sec. standard reference buffer solution
| 产品编号： | 4059139 |
| 规格： | potassium dihydrogen phosphate/di-sodium hydrogen phosphate, pH 7.41 (25 °C), Certipur® |
| 包装规格： | 5 X 100 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 |
| agency | complies with DIN 19266 |
| product line【产品线】 | Certipur® |
| composition【组成】 | potassium dihydrogen phosphate/di-sodium hydrogen phosphate |
| pH【pH值(酸碱度)】 | 7.41 (25 ℃) |
| 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 certified secondary standard reference buffer solution of potassium dihydrogen phosphate/di-sodium hydrogen phosphate is gravimetrically prepared using high-quality reagents in high-purity water. Its pH value is analyzed by differential potentiometry with two platinum hydrogen electrodes against primary certified reference materials from NIST & PTB. Also, the pH analysis uses the 5-point calibration method, following DIN 19268, against certified primary reference standards as per DIN 19266. |
| Application【应用】 | The buffer solution can be used for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions. |
| Features and Benefits【特点和优势】 |
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| Analysis Note【分析说明】 | pH-value: 7.414 - 7.420 For complete data see the enclosed certificate |
| 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 |
