Heat-gradient analytical technique for the simultaneous determination of some aromatic amines

Janghel, E. K.; K., J.; K., M.; Gupta, V. K.

doi:10.1134/s1061934808020093

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…In their report, Ghafoor and Bark (1982) have tested halogen, alkyl and nitro aniline derivatives and showed how the substituents on the aromatic structure may affect the chromatographic behavior of aromatic amines. More recently, Janghel et al (2005) have developed a new TLC technique based on the reaction of the aromatic amines o-nitroaniline, p-nitroaniline, m-nitroaniline, p-phenylenediamine and m-phenylenediamine, with orcinol on a TLC plate, leading to colour derivatives. The colour derivatives migrated by the action of temperature gradient and the intensity of the spots compared with those of the standards.…”

Section: Thin Layer Chromatographymentioning

confidence: 99%

Aromatic Amines Sources, Environmental Impact and Remediation

Pereira

Mondal

Alves

2015

Pollutants in Buildings, Water and Living Organisms

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Section: Thin Layer Chromatographymentioning

confidence: 99%

Aromatic Amines Sources, Environmental Impact and Remediation

Pereira

Mondal

Alves

2015

Pollutants in Buildings, Water and Living Organisms

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“…o-Dihydroxy compounds were detected by spraying with Arnow's reagent (1937). Primary amines such as m-aminophenol and m-toluidine were detected by spraying orcinol reagent on the TLC plate to form yellow colored derivatives (Janghel et al 2005). Phenolic compounds gave blue color on spraying with Folin-Ciocalteu's phenol reagent and bluish-green color with 100 mM FeCl 3 , which turned red on exposure to ammonia.…”

Section: Isolation and Identification Of Metabolitesmentioning

confidence: 99%

Biodegradation of phenmedipham by novel Ochrobactrum anthropi NC-1

et al. 2019

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An Ochrobactrum anthropi bacterial strain named as NC-1, capable of utilizing phenmedipham (PMP) herbicide as the sole of carbon source and energy for growth was isolated from pesticide-contaminated soil sample by enrichment culture technique. The isolated bacterial strain was identified as Ochrobactrum anthropi NC-1 (MH 796134) based on its morphological, cultural, biochemical characteristics and analysis of 16S rRNA gene sequence. The strain NC-1 could degrade more than 98.5% of PMP (2 mM) within 168 h. The optimal degradation pH and temperature were 7.0 and 30-35 °C, respectively. The strain NC-1 degraded PMP by a pathway involving its initial hydrolysis of their central amide carbamate linkage to yield m-aminophenol via methyl-N-(3-hydroxyphenyl) carbamate and m-toluidine were the major intermediates. However, m-aminophenol was not further metabolized, because they neither supported the growth of organism nor stimulated oxygen uptake. But m-toluidine released by dealkylation was followed by hydrolysis. Further, results also revealed that degradation of 4-methyl catechol proceeded via 2-hydroxy-5-methyl-6-oxohexa-2, 4-dienoate through meta cleavage ring processes. The formation of these compounds was confirmed by UV, TLC, HPLC, IR, NMR, and GC-MS spectral analysis. The cell-free extracts of O. anthropi NC-1 grown on PMP contained the activities of PMP hydrolase, toluidine dioxygenase, and 4-methyl catechol 1, 2-dioxygenase. These results demonstrate the biodegradation of PMP and promote the potential use of strain NC-1 to bioremediate PMP-contaminated environment.

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Heat-gradient analytical technique for the simultaneous determination of some aromatic amines

Cited by 2 publications

References 9 publications

Aromatic Amines Sources, Environmental Impact and Remediation

Aromatic Amines Sources, Environmental Impact and Remediation

Biodegradation of phenmedipham by novel Ochrobactrum anthropi NC-1

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