... Generally, fluorescent substances are unstable, especially when in solution, and are not suitable for storage, but they have the advantage of being distinguishable by the end point of a colored sample. Chemiluminescent indicators, such as luminol and lucigenin, are used to indicate the end point through chemiluminescence and are used in neutralization titrations and redox titrations. Other indicators in the broad sense include radioisotopes that are added to track the behavior of a substance and compounds that show temperature through a change in color. *Some of the terminology that refers to "chemiluminescent indicators" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一般に蛍光を有する物質はとくに溶液にすると不安定なので保存には適しないが,着色している試料の終点でも見分けられる利点をもっている。ルミノールやルシジェニンのように化学発光(化学ルミネセンス)によって終点を与えるものを化学発光指示薬といい,中和滴定や酸化還元滴定に応用がある。 このほか広義の指示薬としては,物質の挙動を追跡するために加えられる放射性同位体や温度を色の変化で示す化合物が挙げられる。… ※「化学発光指示薬」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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