Determination of hydrazine and 1,1-dimethylhydrazine as salicyldehyde derivates by liquid chromatography with electrochemical detection |
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| Authors: | P E Kester N D Danielson |
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| Institution: | (1) Department of Chemistry, Miami University, 45056 Oxford, OH, USA;(2) Present address: Champion International Corp., Knightsbridge, 45020 Hamilton, Ohio, (USA) |
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| Abstract: | Summary Determination of hydrazine and 1,1-dimethylhydrazine after derivatization with salicylaldehyde was done using high-performance liquid chromatography with electrochemical detection. The oxidation of the phenolic group of salicylaldazine (S-HY) and salicylaldehyde-1,1-dimethylhydrazone (S-UDMH) was optimized with respect to ionic strength, pH, and applied potential. Less than 5 ng of S-HY and S-UDMH could be detected. The detection limits for hydrazine and 1,1-dimethylhydrazine solutions were estimated to be 0.025 and 0.20 ppm, respectively. |
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| Keywords: | Liquid chromatography Electrochemical detection Hydrazine derivatives Derivatization with salicylaldehyde |
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