Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction
The salicylate method has been extensively used for quantifying ammonia in the emerging field of nitrogen (electro)fixation. Alkali metal salts are widely used as supporting electrolytes for nitrogen reduction, especially in the context of electrochemical nitrogen fixation. However, these salts are...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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The Electrochemical Society
2024
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| Online Access: | https://hdl.handle.net/1721.1/154288 |
| _version_ | 1811093521391681536 |
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| author | Giner-Sanz, Juan José Leverick, Graham M. Giordano, Livia Pérez-Herranz, Valentín Shao-Horn, Yang |
| author_facet | Giner-Sanz, Juan José Leverick, Graham M. Giordano, Livia Pérez-Herranz, Valentín Shao-Horn, Yang |
| author_sort | Giner-Sanz, Juan José |
| collection | MIT |
| description | The salicylate method has been extensively used for quantifying ammonia in the emerging field of nitrogen (electro)fixation. Alkali metal salts are widely used as supporting electrolytes for nitrogen reduction, especially in the context of electrochemical nitrogen fixation. However, these salts are known to cause interferences on the salicylate method, introducing significant uncertainties in ammonia quantification. In this work, the interference of lithium, sodium and potassium chlorides, perchlorates and sulfates on the ammonia quantification results obtained using the salicylate method was experimentally quantified, and an empirical model was developed to capture the effect of the presence of these interferents on the ammonia quantification by the salicylate method. Based on the obtained experimental interference results, the tested interferents can be ranked from stronger interferent (i.e. lower admissible concentration) to weaker interferent: Li2SO4, KClO4, LiCl, LiClO4, K2SO4, NaClO4, NaCl, Na2SO4, KCl. The developed model can be used to assess the experimental error in ammonia quantification from nitrogen reduction, in samples containing these interferents. This model can be used to correct the interferences on the ammonia quantification, when the interferent concentration in a sample is known (or measurable). |
| first_indexed | 2024-09-23T15:46:25Z |
| format | Article |
| id | mit-1721.1/154288 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-24T15:56:15Z |
| publishDate | 2024 |
| publisher | The Electrochemical Society |
| record_format | dspace |
| spelling | mit-1721.1/1542882024-09-23T04:12:11Z Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction Giner-Sanz, Juan José Leverick, Graham M. Giordano, Livia Pérez-Herranz, Valentín Shao-Horn, Yang The salicylate method has been extensively used for quantifying ammonia in the emerging field of nitrogen (electro)fixation. Alkali metal salts are widely used as supporting electrolytes for nitrogen reduction, especially in the context of electrochemical nitrogen fixation. However, these salts are known to cause interferences on the salicylate method, introducing significant uncertainties in ammonia quantification. In this work, the interference of lithium, sodium and potassium chlorides, perchlorates and sulfates on the ammonia quantification results obtained using the salicylate method was experimentally quantified, and an empirical model was developed to capture the effect of the presence of these interferents on the ammonia quantification by the salicylate method. Based on the obtained experimental interference results, the tested interferents can be ranked from stronger interferent (i.e. lower admissible concentration) to weaker interferent: Li2SO4, KClO4, LiCl, LiClO4, K2SO4, NaClO4, NaCl, Na2SO4, KCl. The developed model can be used to assess the experimental error in ammonia quantification from nitrogen reduction, in samples containing these interferents. This model can be used to correct the interferences on the ammonia quantification, when the interferent concentration in a sample is known (or measurable). 2024-04-25T19:27:18Z 2024-04-25T19:27:18Z 2022-05-19 2024-04-25T19:19:10Z Article http://purl.org/eprint/type/JournalArticle 2754-2734 https://hdl.handle.net/1721.1/154288 Juan José Giner-Sanz et al 2022 ECS Adv. 1 024501. en 10.1149/2754-2734/ac6a68 ECS Advances Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf The Electrochemical Society The Electrochemical Society |
| spellingShingle | Giner-Sanz, Juan José Leverick, Graham M. Giordano, Livia Pérez-Herranz, Valentín Shao-Horn, Yang Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title | Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title_full | Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title_fullStr | Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title_full_unstemmed | Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title_short | Alkali Metal Salt Interference on the Salicylate Method for Quantifying Ammonia from Nitrogen Reduction |
| title_sort | alkali metal salt interference on the salicylate method for quantifying ammonia from nitrogen reduction |
| url | https://hdl.handle.net/1721.1/154288 |
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