New spot tests for nitrates and nitrites |
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| Authors: | SSM Hassan |
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| Institution: | Research Microanalytical Laboratories, Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, U.A.R. |
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| Abstract: | New spot test reactions for the nitrates and nitrites are described. These are based on a reaction with hydroquinone whereby nitric oxide and chloranil are produced. Nitric oxide is detected in the gas phase by the Griess reaction and chloranil is determined by a reaction with tetra base. Nitrate and nitrite ions are also detected in presence of each other. Some organic and inorganic nitrate samples are tested, the lower limit of identification being 50 μg. |
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