Detection and determination of manganese concentration in water using a fiber Bragg grating coupled with nanotechnology.
Detection and determination of manganese concentration in water using a fiber Bragg grating coupled with nanotechnology.
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DOI：
10.1364/ao.50.006033
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发表时间：
2011-11
期刊：
影响因子：
1.9
通讯作者：
J. F. Akki;A. Lalasangi;K. G. Manohar;P. Raikar;T. Srinivas;U. Raikar
中科院分区：
文献类型：
--
作者：
J. F. Akki;A. Lalasangi;K. G. Manohar;P. Raikar;T. Srinivas;U. Raikar
通过本文，我们实验证明了光纤布拉格光栅（FBG）化学传感器的制造，检测和测定水中锰的浓度，并比较我们的结果与复杂的光谱方法，如原子吸收光谱法和电感耦合等离子体法。在这里，我们提出了一个简单的方法，开发一个薄层的金纳米颗粒蚀刻光栅区域上方，以提高反射光谱的FBG的灵敏度。通过这样做，我们实现了1.26 nm/百万分之一的灵敏度，在确定水中的痕量锰水平。使用合适的试剂检测水中的锰。
Through this paper we experimentally demonstrate the fabrication of a fiber Bragg grating (FBG) chemical sensor to detect and determine the manganese concentration in water and compare our results with sophisticated spectroscopic methods, such as atomic absorption spectrometry and the inductively coupled plasma method. Here we propose a simple method to develop a thin layer of gold nanoparticles above the etched grating region to enhance the sensitivity of the reflected spectrum of the FBG. By doing so, we achieve a sensitivity of 1.26 nm/parts per million in determining the trace level of Mn in water. Proper reagents are used to detect manganese in water.