“diphenylamine test”的概念、定义、翻译、参考文献-科学参考

单词	diphenylamine test
释义	diphenylamine test Chemistry A presumptive test for nitrates. The reagent is a solution of diphenylamine ((C₆H₅)²NH) in sulphuric acid. A positive result is indicated by a blue colour. It was once used in testing for gunshot residue, but is not particularly reliable.
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