Trace Chemical Sensing of Explosives
Chapter One
CHEMICAL SENSING
RONALD L. WOODFIN
Sandia National Laboratories (retired)
We do a lot of chemical sensing. Mostly we do it without special equipment. But,
whether it is the pleasant notification of tortillas toasting or bread baking or the
jarring realization of a skunk or a cigar on the golf course, sensing, analyzing, and
cataloging chemical signals are a part of our daily lives. We also use other means
for chemical sensing. When we travel, we judge the local water hardness by the
amount of soap we need to wash or shampoo. We use test kits to measure the
chemistry of a swimming pool or a flower bed. In this chapter we will examine
some basic ideas of chemical sensing as they apply to finding explosives.
1.1 WHAT IS CHEMICAL SENSING?
When we speak here of chemical sensing we mean the direct sensing of chemicals,
rather than s ... read full excerpt from Trace Chemical Sensing of Explosives ebook