Separation and identification of aromatic carbonyl compounds as their 4-nitrophenylhydrazones by paper and thin-layer chromatography

1968 ◽  
Vol 40 (6) ◽  
pp. 984-986 ◽  
Author(s):  
Ethel D. Barber ◽  
Eugene. Sawicki
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Carbonyl Compounds ◽  
Layer Chromatography ◽  
Aromatic Carbonyl Compounds

Carbonyl Compounds in Salted Cod.: I. Thin-Layer Chromatography of Aliphatic Monocarbonyl 2,4-Dinitrophenylhydrazones

1965 ◽  
Vol 22 (1) ◽  
pp. 17-25 ◽  
Author(s):  
M. Yurkowski
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Propylene Glycol ◽  
Silica Gel ◽  
Carbonyl Compounds ◽  
Two Dimensional ◽  
Layer Chromatography

Methods are described for the separation of 2,4-dinitrophenylhydrazones of normal aliphatic monocarbonyl compounds by thin-layer chromatography. Magnesia-cellulose thin-layer plates are used to separate mixtures of these compounds into classes (n-alkanals, n-alkan-2-ones, n-alk-2-enals, and n-alka-2,4-dienal). Propylene glycol- and petrolatum-impregnated silica gel plates were also used to separate each class into homologues. The former impregnant resolved the compounds with less than seven carbons and the latter with more than six carbons. Two-dimensional separation was accomplished by resolving a mixture of these compounds into classes on magnesia-cellulose in the first dimension and the classes into homologues on either petrolatumor propylene glycol-impregnated silica gel plates in the second dimension.

Carbonyl Compounds in Salted Cod.: II. Separation and Identification of Volatile Monocarbonyl Compounds from Heavily Salted Cod

1965 ◽  
Vol 22 (1) ◽  
pp. 27-32 ◽  
Author(s):  
M. Yurkowski ◽  
M.A. Bordeleau
Keyword(s):  
Melting Point ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Chain Length ◽  
Carbonyl Compounds ◽  
Gadus Morhua ◽  
Unknown Compound ◽  
Layer Chromatography

Volatile monocarbonyl compounds were isolated from heavily salted cod (Gadus morhua) as the 2,4-dinitrophenylhydrazones. These compounds were separated by thin-layer chromatography first into classes and then according to chain length. n-Alkanals C1–5 and n-alk-2-enals C5–6 were conclusively identified. n-Alkanals C8,10 and n-alk-2-enals C4,7,8 were tentatively identified. An unknown compound corresponding to n-hexanal, except in the melting point, was isolated. Formaldehyde, and to a lesser extent, acetaldehyde and propanal, were the major monocarbonyls present in salted cod.

Thin-layer chromatography of carbonyl compounds

1964 ◽  
Vol 8 (2) ◽  
pp. 176-179 ◽  
Author(s):  
D.P. Schwartz ◽  
M. Keeney ◽  
O.W. Parks
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Carbonyl Compounds ◽  
Layer Chromatography
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