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Chemical Sensors and Biosensors. Analytical Techniques in the Sciences (AnTs) *

  • ID: 2176023
  • Book
  • 300 Pages
  • John Wiley and Sons Ltd
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Chemical sensors and biosensors are among the fastest growing of analytical techniques. This text provides an up–to–the–minute overview of a wide range of sensing systems, discussing the elements of different transducers used in sensors and the selective elements that are employed. The style is relatively non–mathematical and informal in approach.

Key features and subjects covered include the following:

∗ Sensors based on both electrochemical and photometric transducers

∗ Mass–sensitive sensors

∗ Thermal–sensitive sensors

∗ Performance factors for sensors

∗ Examples of applications

∗ Detailed case studies of five selected sensors

∗ 30 discussion questions with worked examples and 80 self–assessment questions

∗ 140 explanatory diagrams

∗ An extensive bibliography

The book′s approach is ideal for students at BTEC (HND and HNC) level, as well as for BSc degree and postgraduate students of analytical and physical chemistry. Chemical Sensors and Biosensors will, in addition, be invaluable to all those concerned with the environmental and biomedical applications of such systems
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Series Preface

Author′s Preface

Acronyms, Abbreviation and Symbols

About the Author


Introduction to sensors

Sensors and biosensors – definitions

Aspects of sensors

Transduction Elements

Electrochemical transducers – introduction

Potentiometry and ion selective electrodes: the Nernst equation

Voltammetry and amperometry


Field effect transistors

Modified electrodes, thin film electrodes, microelectrodes and screen printed electrodes

Photometric sensors

Sensing Elements


Ionic recognition

Molecular recognition – chemical recognition agents

Molecular recognition – spectroscopic recognition

Molecular recognition – biological recognition agents

Immobilisation of biological component

Performance Factors




Time factors

Precision, accuracy and repeatability

Different biomaterials

Different transducers

Some factors affecting the performance of sensors

Electrochemical Sensors and Biosensors

Potentiometric sensors – ion selective electrodes

Potentiometric biosensors

Amperometric sensors

Conductometric sensors and biosensors

Applications of FET sensors

Photometric Applications

Techniques for optical sensors

Visible absorption spectroscopy

Fluorescent reagents

Indirect methods using competitive binding

Reflection methods

Light scattering techniques

Mass Sensitive and Thermal Sensors

The piezo–electric effect

Surface acoustic waves

Thermal sensors

Some Specific Applications

Determination of glucose in blood – amperometric biosensor

Determination of ng levels of copper (I) in water using anodic stripping voltammetry using an electrode modified with a complexing agent

Determination of several ions simultaneously – "the laboratory on a chip"

Determination of ato–mole levels of trinitrotoluene (TNT) – antibody with a luminescent transducer

Determination of flavanols in beers
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Brian R. Eggins
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