水流中化学污染物的检测和表征对水质至关重要 以及水安全。目前监测污染物存在的趋势是分批取样 技术，在实验室中收集和分析水样。这种方法不实用 万一发生灾难。研制了一种改进的包层聚苯胺氨传感器 还有盐酸。当暴露在空气中时，传感器显示出快速可逆的颜色变化 氨和盐酸。研究了改性包层引起的强度变化 这将有助于建立响应时间和浓度之间的相关性 化学污染物，以及光强度的变化。包括18个参考文献、图表。

Detection and characterization of chemical contaminants in water streams is paramount for water quality and water security. The current trend of monitoring the presence of contaminants is the batch sampling technique, where a sample of water is collected and analyzed in the laboratory. This method is not practical in case of disasters. A modified cladding Polyaniline based sensor is developed that can detect ammonia and hydrochloric acid. The sensor showed a rapid reversible color change when exposed to ammonia and hydrochloric acid. The change in intensity caused by the modified cladding is studied parametrically which will help in the formulation of a correlation between response time, concentration of chemical contaminant, and change in optical intensity. Includes 18 references, figures.