Abbreviations 



aq aqueous (solution) 

 cm centimetre(s) 

 DNA deoxypentose nucleic acid 

 g gram(s) 

 ml millilitre(s) 

 mm millimetre(s) 



H micron(s) 

 m// millimicron(s) 

 o.p. oxidation potential 

 RNA ribonucleic acid 

 v/v expresses the concentration of a solute in terms of the 

 number of ml of the solute in 100 ml of the solution. 

 w/v expresses the concentration of a solute in terms of the 



number of g of the solute in 100 ml of the solution, 

 w/w expresses the concentration of a solute in terms of the 



number of g of the solute in 100 g of the solution. 

 w/W expresses the concentration of a solute in terms of the 

 number of g of the solute in 100 g of the solvent. 



In this book the concentrations of liquid solutes are expressed 

 as v/v. Thus 5% acetic acid means a solution containing 5 ml 

 of the acid in each 100 ml of solution. 



The concentrations of solid and gaseous solutes are expressed 

 as w/v, except where the contrary is stated. Thus 4% formalde- 

 hyde means a solution containing 4 g of the gas in each 100 ml 

 of solution. 



XV 



