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Title: 中学校理科の光合成実験で用いられるインジゴカーミン法の改良
Other Titles: Improvement of Indigo Carmine Method on Photosynthetic Experiment in Science of Lower Secondary School
Authors: 陣野, 信孝 / 藤田, 毅
Authors (alternative): Jinno, Nobutaka / Fujita, Tsuyoshi
Issue Date: 28-Feb-1993
Publisher: 長崎大学教育学部
Citation: 長崎大学教育学部自然科学研究報告. vol.48, p.21-28; 1993
Abstract: A reduced indigo carmine liquid turn easily from a transparent yellow color into a blue one by a oxidation. This principal is usually to the qualitative detection of oxygen evolved photosynthetically form plants in science of lower secondary school, However, thee method used at the science textbook has a disad- vantage that an air is apt to mix into the reduced indigo carmine solution on the way of experiment, and then the turning into blue color often occurs at the control experiment without the plant sample. Thus, it is difficult to detect whether the turned bllue color is brought about an oxygen evolved photosynthetically or not. Therefore, we attempted to improve the indigo carmine method and coule devise the apparatus capable of being avoided the mixing of air using a syringe as a reaction tube, Good results coule be obtained on the use of the present improved method. The improved indigo carmine method seems to be available to the photosynthetic experiment in science of lower secondary school.
Keywords: Indigo carmine method / Lower Secondary school / Photosynthetic experiment
URI: http://hdl.handle.net/10069/32249
ISSN: 0386443X
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No. 48

Citable URI : http://hdl.handle.net/10069/32249

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