Degradation of High Purity Water on Storage

Experimental results are presented which indicate that the quality of high purity water degrades with storage time. HPLC trace enrichment techniques were used to monitor the amount of organics in water stored in various types of containers. Starting with initial, high purity water, it was shown that organics could be detected in as little as one hour after storage in plastic containers. Organics could also be detected if the water was stored in glass.