磷酸盐缓冲液

Phosphate Buffer, pH 7.2, is prepared according to APHA guidelines and is primarily used for diluting test samples. It is specified for microbiological methods involving the dilution of water, dairy products, and food samples. Additionally, Phosphate Buffer can be used with the addition of magnesium chloride, as recommended by APHA and FDA. This medium is also referred to as Butterfield’s Buffered Phosphate Diluent when used without magnesium chloride. Phosphate Buffer is preferred over unbuffered water as it helps standardize the pH variations commonly observed in distilled water from different sources.

用于制备检测水、乳制品、食品、餐具和其他样品的稀释液和空白样。

NutriSelect^® Plus are powdered culture media offering

• Quality control with growth promotion test according to industry standards
• Quality assurance acc. to ISO 9001
• Cost-efficient powdered media

取34 g溶于1L蒸馏水中。分装并在121°C下高压蒸汽灭菌15分钟。在高压蒸汽灭菌并冷却至室温后，pH值应为7.2±0.2。

我们现提供两种类型的培养基：GranuCult^®优质颗粒状培养基和NutriSelect^®高性价比粉末状培养基，满足用户不同层次的需求。
商标后的品级称号basic（基础）、plus（加强）或prime（特级）代表产品的不同质控水平，从基础的质控到标准质控加强版到全面合规的特级质控水平。

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany