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pH

pH

The pH test measures the acidity or alkalinity of a solution. The pH is measured on a scale of 0 to 14. Solutions with a pH less than 7 are considered acidic, while those with a pH greater than 7 are considered basic (alkaline). A pH of 7 is considered neutral. This test can be used to determine quality control or shelf life stability studies.

Applicable Standards

  • USP 791

Test Options

Standard turn around times (TAT) are listed below. Ask an expert for a specific consultation on your product. If you are ready to submit your samples for testing, click here to fill out the Sample Submission Form.

Code Test TAT (days) Request Quote
CHM110 pH Analysis 3 Add
CHM115 pH reported with other tests 7 Add
CHM110 - pH Analysis
TAT: 3 days
CHM115 - pH reported with other tests
TAT: 7 days

Study Outline

In the pH test, a benchtop pH meter is used to determine the pH of liquid samples. Non-liquid samples are extracted with USP purified water and the extract is analyzed.
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