用于农业应用的印刷电位计传感器
Anju Toor1,2, Payton Goodrich2, Tyler L Anthony3
1School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.
ACS omega
|December 9, 2024
概括
完全打印的氨传感器可以准确地测量各种土壤类型中的氨度. 这些传感器对于农业实时监测至关重要,有助于肥料管理和了解气损失.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 传感器技术 传感器技术
背景情况:
- 氨 (NH4+) 对土壤营养物质的可用性和 (N) 损失至关重要.
- 对的实时监测对于有效的农业实践和了解N循环至关重要.
- 现有的传感器技术在不同的土壤环境中面临着挑战.
研究的目的:
- 在各种土壤类型中研究完全打印的氨离子选择性传感器的性能.
- 在不同的土壤湿度条件下评估传感器可靠性.
- 评估印刷传感器对实时土壤氨监测的潜力.
主要方法:
- 印刷的氨离子选择电极和Ag/AgCl参考电极的制造.
- 在水溶液和三种土壤类型 (沙子,泥炭,粘土) 中传感器的表征,在一系列氨度 (0.01-100毫米) 中.
- 在可变重力测量湿度下评估传感器响应,以模拟现场条件.
主要成果:
- 在水溶液中,传感器的灵敏度为53.6 ± 5.1 mV/十年.
- 在土壤中,测量灵敏度为55.7 ± 11mV/dec (沙子),57.5 ± 4.1mV/dec (粘土) 和43.7 ± 4mV/dec (泥炭).
- 在不同的土壤湿度水平下评估了传感器性能,表明了潜在的现场适用性.
结论:
- 完全打印的氨传感器在各种土壤类型和条件下显示出有希望的性能.
- 这些传感器为农业和环境应用中实时监测提供了可行的技术.
- 开发的传感器可以有助于改善肥料管理和更好地了解土壤气动态.
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