反渗水克服了蒸馏水和去离子水的许多缺点,利用反渗透技术可以有效的去除水中的溶解盐、胶体,细菌、病毒、细菌内毒素和大部分有机物等杂质,但不同厂家生产的反渗透膜对反渗水的质量影响很大。 4、超纯水(Ultra-pure grade water): 其标准是水电阻率为18.2MΩ-cm。但超纯水在TOC、细菌、内毒素等指标方面并不相同...
Is HPLC grade water nuclease-free? Most freshly opened bottles of commercial HPLCgrade water are already RNAse free. However, always test untreated water (or old treated water) for nucleases by incubating sample RNA in the water at 37°C for at least 3 hours and then run a gel to detect ...