Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference
The salicylate method is one of the ammonia quantification methods that has been extensively used in literature for quantifying ammonia in the emerging field of nitrogen (electro)fixation. The presence of iron in the sample causes a strong negative interference on the salicylate method. Today, the r...
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| Format: | Article |
| Language: | English |
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The Electrochemical Society
2022
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| Online Access: | https://hdl.handle.net/1721.1/139773 |
| _version_ | 1826192459825152000 |
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| author | Giner-Sanz, Juan José Leverick, Graham M Pérez-Herranz, Valentín Shao-Horn, Yang |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Giner-Sanz, Juan José Leverick, Graham M Pérez-Herranz, Valentín Shao-Horn, Yang |
| author_sort | Giner-Sanz, Juan José |
| collection | MIT |
| description | The salicylate method is one of the ammonia quantification methods that has been extensively used in literature for quantifying ammonia in the emerging field of nitrogen (electro)fixation. The presence of iron in the sample causes a strong negative interference on the salicylate method. Today, the recommended method to deal with such interferences is the experimental correction method: the iron concentration in the sample is measured using an iron quantification method, and then the corresponding amount of iron is added to the calibration samples. The limitation of this method is that when a batch of samples presents a great iron concentration variability, a different calibration curve has to be obtained for each sample. In this work, the interference of iron III on the salicylate method was experimentally quantified, and a model was proposed to capture the effect of iron III interference on the ammonia quantification result. This model can be used to correct the iron III interferences on ammonia quantification. The great advantage of this correction method is that it only requires three experimental curves in order to correct the iron III interference in any sample provided the iron III concentration is below the total peak suppression concentration. |
| first_indexed | 2024-09-23T09:14:28Z |
| format | Article |
| id | mit-1721.1/139773 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:14:28Z |
| publishDate | 2022 |
| publisher | The Electrochemical Society |
| record_format | dspace |
| spelling | mit-1721.1/1397732023-01-30T20:43:16Z Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference Giner-Sanz, Juan José Leverick, Graham M Pérez-Herranz, Valentín Shao-Horn, Yang Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Materials Science and Engineering The salicylate method is one of the ammonia quantification methods that has been extensively used in literature for quantifying ammonia in the emerging field of nitrogen (electro)fixation. The presence of iron in the sample causes a strong negative interference on the salicylate method. Today, the recommended method to deal with such interferences is the experimental correction method: the iron concentration in the sample is measured using an iron quantification method, and then the corresponding amount of iron is added to the calibration samples. The limitation of this method is that when a batch of samples presents a great iron concentration variability, a different calibration curve has to be obtained for each sample. In this work, the interference of iron III on the salicylate method was experimentally quantified, and a model was proposed to capture the effect of iron III interference on the ammonia quantification result. This model can be used to correct the iron III interferences on ammonia quantification. The great advantage of this correction method is that it only requires three experimental curves in order to correct the iron III interference in any sample provided the iron III concentration is below the total peak suppression concentration. 2022-01-27T16:00:01Z 2022-01-27T16:00:01Z 2020 2022-01-27T15:41:23Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/139773 Giner-Sanz, Juan José, Leverick, Graham M, Pérez-Herranz, Valentín and Shao-Horn, Yang. 2020. "Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference." Journal of the Electrochemical Society, 167 (13). en 10.1149/1945-7111/ABBDD6 Journal of the Electrochemical Society Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf The Electrochemical Society The Electrochemical Society |
| spellingShingle | Giner-Sanz, Juan José Leverick, Graham M Pérez-Herranz, Valentín Shao-Horn, Yang Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title | Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title_full | Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title_fullStr | Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title_full_unstemmed | Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title_short | Salicylate Method for Ammonia Quantification in Nitrogen Electroreduction Experiments: The Correction of Iron III Interference |
| title_sort | salicylate method for ammonia quantification in nitrogen electroreduction experiments the correction of iron iii interference |
| url | https://hdl.handle.net/1721.1/139773 |
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