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2-(4-Pyridyl)imino nitroxide and tetraphenylporphyrin zinc(Ⅱ) formed a stable complex by noncovalent bonding in a nonpolar solution.Nicotine displaced 2-(4-pyridyl)imino nitroxide when it was added to a solution of 2-(4-pyridyl)imino nitrox-ide-tetraphenylporphyrin zinc(Ⅱ).The fluorescence intensity of tetraphenylporphyrin zinc(Ⅱ) was altered by sequentially addition of 2-(4-pyridyl)imino nitroxide and nicotine.This was used to develop a new method for detection of nicotine.
2- (4-Pyridyl) imino nitroxide and tetraphenylporphyrin zinc (II) formed a stable complex by noncovalent bonding in a nonpolar solution. Nicotine displaced 2- (4-pyridyl) imino nitroxide when it was added to a solution of 2- The fluorescence intensity of tetraphenylporphyrin zinc (Ⅱ) was altered by sequentially addition of 2- (4-pyridyl) imino nitroxide and nicotine. This was used to develop a new method for detection of nicotine