双色流荧——基于氨气制备的鲁米诺双色荧光喷泉

doi:10.3866/PKU.DXHX202110011

Abstract

Abstract:

Upon dissolution of ammonia in water, an instant imbalance of atmospheric pressure inside and outside the bottle is produced. This imbalance allows the fountain experiment to be carried out based on the preparation, collection of ammonia gas, and the tail gas treatment device. Through a simple experiment, a double-fluorescent fountain can be formed based on the Luminol reaction and the indicator phenolphthalein. The purpose of this experiment is to demonstrate the properties of ammonia and show Luminol's bright blue light reaction when it encounters blood. This reaction is mainly used in the detection of blood in modern criminal investigations which can often be seen in detective mystery films, further increasing interest in chemistry.

Key words: Luminol luminescence, Double fountain experiment, Ammonia, Multicolor fluorescence

Guangya Zhang, Jie Li, Han Zhang, Suzhi Li, Shumin Chen. Double-Color Fluorescent Fountain: Luminol Reaction Based on the Preparation of Ammonia Gas[J].University Chemistry, 2022, 37(5): 2110011.

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Double-Color Fluorescent Fountain: Luminol Reaction Based on the Preparation of Ammonia Gas

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