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Drift analysis of a Pd loaded SnO2 based linalool sensor
Indian Journal of Engineering & Materials Sciences Pub Date : 2020-08-03
Priyanka Kakoty, Manabendra Bhuyan, Karen Das

An approach has been made in this work to analyze sensitivity drift in a Pd decorated SnO2 sensor developed for detection of linalool, a significant aroma compound in tea.  Prior to the drift analysis, an attempt has been made to choose the optimum loading percentage of Pd in SnO2 for linalool sensing.  An inexpensive and simplistic hydrothermal method has been used to develop five different Pd decorated SnO2 sensors (0.5 wt%, 2 wt%, 5 wt%, 6 wt% and 8 wt%) and compare their sensitivities when exposed to linalool vapour. The analysis has shown that 6 wt% exhibits better sensitivity (62.7%) towards Linalool at a relatively lower temperature (100 °C) as compared to all the other synthesized sensors. Henceforth, extensive experiments has been performed on the 6 wt% Pd decorated SnO2 sensor for a period of one month to analyze its stability. Relative standard deviation and principal component analysis based drift analysis has been performed to understand its changing attributes under repeated measurements.

中文翻译:

基于钯的SnO2芳樟醇传感器的漂移分析

在这项工作中,已经采取了一种方法来分析为检测芳樟醇(一种茶叶中的重要香气成分)而开发的,装饰有钯的SnO 2传感器的灵敏度漂移。在进行漂移分析之前,已尝试选择用于芳樟醇传感的SnO 2中Pd的最佳负载百分比。一种廉价且简单的水热方法已用于开发五种不同的Pd装饰的SnO 2传感器(0.5 wt%,2 wt%,5 wt%,6 wt%和8 wt%),并比较它们在暴露于芳樟醇蒸汽中的敏感性。分析表明,与所有其他合成传感器相比,在相对较低的温度(100°C)下,6 wt%的化合物对芳樟醇的敏感性更高(62.7%)。今后,已经对装饰有6 wt%Pd的SnO 2传感器进行了为期一个月的广泛实验,以分析其稳定性。已经进行了基于相对标准偏差和主成分分析的漂移分析,以了解其在重复测量下的变化属性。
更新日期:2020-08-03
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