Abstract
Spot tests for the detection of the three isomeric pyridine aldehydes and for pyridine-2-aldehyde are described. The tests are based on colour reactions with phenylhydrazine and with iron-sulphate sulphate and hydroxylamine respectively. The chemical basis of te-colour reactions is discussed and the pertinent procedures are outlined. The colour reaction between pyridine-2-aldehyde and phenylhydrazine makes possible the detection of the latter as well as of phenylhydrazones and osazones after their acidic hydrolytic cleavage.
Original language | English |
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Pages (from-to) | 1111-1114 |
Number of pages | 4 |
Journal | Talanta |
Volume | 10 |
Issue number | 10 |
DOIs | |
State | Published - Oct 1963 |