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Buffer solutions
| 产品编号： | 4058897 |
| 规格： | traceable to NIST, traceable to PTB, pH 4.01 (25 °C, phthalate), pH 7.00 (25 °C, phosphate), pH 9.00(borate), 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 |
| agency | traceable to NIST traceable to PTB |
| product line【产品线】 | Certipur® |
| pH【pH值(酸碱度)】 | 4.01 (25 ℃, phthalate) 7.00 (25 ℃, phosphate) 9.00(borate) |
| 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】 | It includes a pack of three certified buffer solutions, gravimetrically prepared using high-quality reagents and water at a registered calibration laboratory. Their pH values of 4.01 (phthalate), 7.00 (phosphate), and 9.00 (borate) at 25℃ are measured using combined glass electrode as per the 5-point calibration method. The measurements are made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH of buffers is strongly dependent on the temperature and therefore a constant temperature must be maintained during their use. |
| Application【应用】 | They are used as standards to calibrate pH measuring instruments or pH electrodes and as controls to measure the 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】 | 10-13 - German Storage Class 10 to 13 |
