软化水
As a rule, liquid reagents do not consist of a single preparation but comprise several components that need to be added to the sample in a certain order.
As both the size and the number of drops have a decisive effect on the resultant colour complex, the reagents need to be added with a high degree of precision.
The shelf life of liquid reagents is reduced by temporary contact with oxygen in the air when the bottle is opened as well as by unsuitable storage environments (presence of sunlight or high temperatures).
* HACH®是HACH公司的注册商标，位于科罗拉多州的Loveland。使用HACH®商标并不意味着与该公司有任何关联。
与该公司的任何附属关系或HACH公司对这些产品在分光光度计或其他以HACH®商标销售的设备或系统中使用的成分、测试或适合性的任何批准。