interference
Quick Summary
In chemistry, an interference is any substance that is not the target material but can be measured by an analytical method or prevent the target material from being measured, leading to inaccurate results.1234
Several methods exist to remove interferences:
* Selective precipitation: A reagent is added to form a precipitate with the interfering substance, which is then filtered out.1
* Complexation: A complexing agent binds to the interference, forming a soluble complex that doesn't affect the assay.2
* Chromatography: Components of a mixture are separated based on their differing attractions to a stationary and mobile phase.3
* Electrogravimetry: An electric current is used to deposit a solid onto an electrode from a solution.4
Other methods include distillation, filtration, osmosis, and extraction.1234
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