What is a crucial aspect of preserving water sample integrity?

Preserving the integrity of water samples is essential for accurate analysis and reliable results. One of the most crucial aspects of this process is maintaining conditions to prevent contamination. This involves several practices such as careful handling of samples, using appropriate containers, and ensuring that the location and environment where samples are taken do not introduce any foreign substances.

Contamination can occur from various sources, including the surroundings, equipment, or even personnel handling the samples. Any foreign materials or chemicals that inadvertently mix with the sample can alter its characteristics and lead to misleading results. Therefore, protocols must be in place to safeguard against these risks, ensuring that the samples reflect their original state at the time of collection.

While testing immediately after collection is important for certain analyses, it doesn't address the potential for contamination that might occur during handling and transport. Similarly, while the choice of container (plastic or otherwise) is relevant, it's not the primary focus for preventing contamination, which encompasses a broader set of practices. Reducing the volume of a sample might negatively impact the analysis by not providing enough material, making it a less effective strategy in this context.