Commonly Used Sample Preservation Techniques for Laboratory Water – Table 9 (Phytoplankton)

The table lists the requirements for water sample preservation techniques. The preservation time, container material selection, and preservation measures all depend on the components and properties of the sample. However, real-world water samples vary greatly, so the requirements listed in the table cannot be absolute guidelines. Therefore, each analyst should verify the applicability of these requirements in their specific work, and the methods for sample collection and preservation should be clearly specified when developing analytical method standards.

Furthermore, if there are incompatibilities between the analytical method to be used and the protective agent and container material, it is often necessary to take several samples from the same water body and analyze them using different preservation methods to determine the most suitable protection method and container.

Common Sample Preservation Techniques – Table 9

(This table only contains general requirements for sample preservation. Due to the complex properties of natural water and wastewater, the stability of each type of sample treated according to the following methods needs to be verified before analysis.)

Note: ①P – Polyethylene; C – Borosilicate glass. ②A "-" indicates that no preservation measures are taken.