what can be used to identify an element present in a sample?
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Expert's answer
2017-03-07T11:02:32-0500
A qualitative analysis is used to identify the elements in a sample. It determines the presence or absence of a particular compound. To detect an element in a sample, for example: one should fix an appearance of an analytical signal: the formation of precipitate or characteristic crystals, color change, an isolation of gaseous products, an appearance of a definite lines in spectrum, luminescence, and etc.
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