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Pharmaceutical Guideline
Pharmacopoeia

DEIONIZED DISTILLED WATER

This water is used as a reagent in a liquid chromatography test that requires a low ionic or organic impurity level.

Pharmaceutical Guideline1 min read
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Laboratory analyst in a blue coat, mask and gloves pouring water from a flask into a graduated cylinder beside a pH meter

Laboratory analyst in a blue coat, mask and gloves pouring water from a flask into a graduated cylinder beside a pH meter and an electronic pipette

DEIONIZED DISTILLED WATER

Laboratory analyst in a blue coat, mask and gloves pouring water from a flask into a graduated cylinder beside a pH meter and an electronic pipette

  • Deionized Distilled Water is produced by deionizing Distilled Water.
  • This water is used as a reagent in a liquid chromatography test that requires a low ionic or organic impurity level.
  • Because of the importance of this high purity, water that meets the requirements for Purified Water may not be acceptable.
  • High-Purity Water could be a reasonable alternative to this water.
  • It is the user’s responsibility to verify the suitability of the alternative water used.
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