Nuclear magnetic resonance spectroscopy in solids

Abstract

A point of notation In the absence of an internationally approved and formally correct symbol, in this issue the notion ‘parts per million’ is represented by ‘ x 10 ^-6 ’ or ‘/10 ⁶ ’. This is in accordance with the recommendation contained in Quanties, Units and Symbols (The Royal Society, 1975). Where no numerical value is given, the expression ‘millionths’ is used.