| タイトル | Colorimetric Solid Phase Extraction for the Measurement of Total I (Iodine, Iodide, and Triiodide) in Spacecraft Drinking Water |
| 著者（英） | Lipert, Robert J.; Gazda, Daniel B.; McCoy, J. Torin; Rutz, Jeff A.; Schultz, John R.; Siperko, Lorraine M.; Carrizales, Stephanie M.; Porter, Marc D. |
| 著者所属（英） | NASA Johnson Space Center; NASA Johnson Space Center |
| 発行日 | 2009-01-01 |
| 言語 | eng |
| 内容記述 | An experimental drinking water monitoring kit for the measurement of iodine and silver(I) was recently delivered to the International Space Station (ISS). The kit is based on Colorimetric Solid Phase Extraction (CSPE) technology, which measures the change in diffuse reflectance of indicator disks following exposure to a water sample. To satisfy additional spacecraft water monitoring requirements, CSPE has now been extended to encompass the measurement of total I (iodine, iodide, and triiodide) through the introduction of an oxidizing agent, which converts iodide and triiodide to iodine, for measurement using the same indicator disks currently being tested on ISS. These disks detect iodine, but are insensitive to iodide and triiodide. We report here the operational considerations, design, and ground-based performance of the CSPE method for total I. The results demonstrate that CSPE technology is poised to meet NASA's total I monitoring requirements. |
| NASA分類 | Chemistry and Materials (General) |
| レポートNO | JSC-CN-19304 |
| 権利 | Copyright |
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