SEN AMARNATH,MANDAL SAIKAT,NARJINARY MOUSUMI,GHOSH SAPTARSHI
申请号：
IN537/DEL/2015
公开号：
IN2015DE00537A
申请日:
2015.02.25
申请国别(地区):
IN
年份:
2016
代理人:
摘要：
The present invention provides metal oxide semiconductor sensor for detection of four major volatile compounds linalool, geraniol, methyl salicylate and trans-2- hexenal responsible for aroma in black tea with partially overlapping selectivity with an intention to classify black tea,aroma using the sensors in an array form (e-nose), by using a composition comprising SnOz, BaO, SiO, Ag,Au, LaZ03 The sensor compositions are selective towards low concentrations of above mentioned VOCs which are markers for black tea aroma. Such semiconductor sensors for tea aroma classification are inexpensive, rugged, operator-friendly, and on the top, non" invasive. As the studied/available e-nose for tea gradation is based on sensors not specifically made for detection of tea aroma VOCs, the .sensors made from the invented compositions are suitable for high performance e-nose.
