[Use of reaction of formation of polymethine dyes in analysis of some pyridine derivatives].
D002623:Chemistry Techniques, Analytical; D004396:Coloring Agents; D008722:Methods; D011725:Pyridines / Q000032:analysis*
D004396:Coloring Agents; D011725:Pyridines
Vykorystannia reaktsiï utvorennia polimetrynovykh barvnykiv v analizi deiakykh pokhidnykh pirydynu.