Precipitation gravimetry can also be applied to the identification of inorganic and organic analytes, using precipitants such as those outlined in Tables 8.1, 8.2, 8.4, and 8.5. Since this does not require quantitative measurements, the analytical signal is simply the observation that a precipitate has formed. Although qualitative appli- cations of precipitation gravimetry have been largely replaced by spectroscopic methods of analysis, they continue to find application in spot testing for the presence of specific analytes.
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