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Chemical Sensors: Fundamentals of Sensing Materials Volume 1: General Approaches by Ghenadii Korotcenkov

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CHAPTER 1

BASIC PRINCIPLES OF CHEMICAL SENSOR OPERATION

M. Z. Atashbar

S. Krishnamurthy

G. Korotcenkov

1. INTRODUCTION

In recent years increased knowledge has led to significant development of chemical sensors for detection and quantification of chemical species. Chemical sensors have found a wide range of applications in clinical, industrial, environmental, agricultural, and military technologies.

Chemical sensors are characterized by parameters such as sensitivity, selectivity, response and recovery time, and saturation. Chemical sensors can be classified in a number of ways, depending on their principle of operation. In this chapter we describe the fundamental concepts of the following classes of chemical sensors: electrochemical, conductometric, ...

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