American Journal of Heterocyclic Chemistry

Volume 3, Issue 6, December 2017

  • Determination of Safranin T Pigment in Food Samples by Ionic Liquid Coated Magnetic Core/Shell Fe3O4@SiO2 Nanoparticles Coupled with Fluorescence Spectrophotometry

    Almojtaba Abd Alkhalig Ahmed Bakheet

    Issue: Volume 3, Issue 6, December 2017
    Pages: 60-66
    Received: Oct. 26, 2017
    Accepted: Nov. 08, 2017
    Published: Dec. 05, 2017
    Downloads:
    Views:
    Abstract: Three hydrophobic ionic liquids (IL) 1-octyl-3-methylimidazole hexafluorophosphate ([OMIM]PF6) (1-butyl-3-methylimidazole hexafluorophosphate ([BMIM]PF6),1-hexyl-3-methyl-imidazole hexafluoro-phosphate ([HMIM]PF6), were coated by Fe3O4@SiO2 nanoparticles with core-shell structure to prepare magnetic solid phase extraction agent (Fe3O4@SiO2@IL) and ... Show More
  • Magnetic Solid Phase Extraction Using Ionic Liquid Coated Magnetic Core Fe3O4@SiO2 Nanoparticles Followed by UV Spectrophotometry for Separation/Analysis of Safranine T in Food

    Almojtaba Abd Alkhalig Ahmed Bakheet, Xia Shi Zhu

    Issue: Volume 3, Issue 6, December 2017
    Pages: 67-73
    Received: Oct. 26, 2017
    Accepted: Nov. 10, 2017
    Published: Dec. 13, 2017
    Downloads:
    Views:
    Abstract: Hydrophobic ionic liquids (IL) 1-octyl-3-methylimidazole hexafluorophosphate ([OMIM] PF6) coated Fe3O4@SiO2 nanoparticles was employed in magnetic solid phase extraction (MSPE) method coupled with ultraviolet visible spectrophotometry for the analysis of safranineT (ST). The results showed that safranineT was adsorbed fast by Fe3O4@SiO2@[OMIM] PF6 ... Show More
  • Derivatives from Black Liquor as a Wood Preservant: A Review

    Kelly Bossardi Dias, Ricardo Marques Barreiros

    Issue: Volume 3, Issue 6, December 2017
    Pages: 74-77
    Received: Nov. 06, 2017
    Accepted: Nov. 15, 2017
    Published: Dec. 13, 2017
    Downloads:
    Views:
    Abstract: Increased concern with environmental issues, the health of operators of condoms and the consumers of wood, and the reuse of these treated woods after their use, has generated the need to develop less aggressive condoms treatments And the environment with sustainable principles. Thus, the aim of research has been to develop environmentally correct a... Show More
  • Evaluation of Kinetic Approach in Describing Potassium Bioavailability

    Monier Morad Wahba, Amal M. Aziz, Alaa M. Zaghloul

    Issue: Volume 3, Issue 6, December 2017
    Pages: 78-85
    Received: Nov. 11, 2017
    Accepted: Nov. 27, 2017
    Published: Dec. 26, 2017
    Downloads:
    Views:
    Abstract: The objective of this study was to determine the potassium (K) release kinetics of sandy soil sample representative soil of Egyptian new reclaimed areas as affected by treatments of different rates of compost and chemical fertilizers applied individually or mixture of both type sand the effect of two irrigation regimes i.e. 80 and 60% of water requ... Show More
  • Synthesis, Biological Activity and Cytotoxicity of New Fused Pyrazolo[1,5-a]pyrimidine from 5-Aminopyrazole Incorporated with p-Chloroaniline

    Wedad Melad Al-Adiwish, Fatma Ali Shtewi, Munira Muftah Ashrif, Dalal Mohamed Ibrahim

    Issue: Volume 3, Issue 6, December 2017
    Pages: 86-94
    Received: Oct. 28, 2017
    Accepted: Dec. 08, 2017
    Published: Jan. 08, 2018
    Downloads:
    Views:
    Abstract: 5-Amino-3-(4-chlorophenylamino)-1H-pyrazole-4-carbonitrile 3 was prepared in high yield from the reaction of hydrazine hydrate with known 2-[(4-chlorophenylamino)(methylthio)methylene]malononitrile 2a (which was prepared from reaction of 2-[bis(methylthio)methylene]malononitrile 1 with p-Chloroaniline) under reflux in ethanol. The compound 3 was ut... Show More