Science Journal of Chemistry

Volume 7, Issue 4, August 2019

  • Method for Residues Analysis of Isoxaflutole and Its Metabolites in Maize

    Mao Jia, Feng Yizhi, Qi Xiaoxue, Han Jifeng, Pan Jinju, Liang Lin, Liu Wei, Zuo Bojun

    Issue: Volume 7, Issue 4, August 2019
    Pages: 72-76
    Received: Sep. 11, 2019
    Accepted: Oct. 07, 2019
    Published: Oct. 17, 2019
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    Abstract: A rapid and sensitive analytical method for the determination of isoxaflutole and diketonitrile (DKN) residues in maize was established based on QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) and high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). The samples were extracted with acetonitrile and purified wi... Show More
  • 2-oxo-2H-chromen-3-yl Propionate and 2-oxo-2H-chromen-3-yl Acetate: Short-step Synthesis, Characterization and Fluorescence Properties

    Jules Yoda, Salfo Ouédraogo, Adama Saba

    Issue: Volume 7, Issue 4, August 2019
    Pages: 77-81
    Received: Sep. 20, 2019
    Accepted: Oct. 14, 2019
    Published: Oct. 23, 2019
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    Abstract: Natural or synthetic coumarins are of great interest, since many of them show prominent biological activity and photochemical characteristics. In particular, hydroxycoumarins and their derivatives have been extensively studied in various fields such as biology, medicine, physics and chemistry. Among the well-known compounds is 7-hydroxycoumarin, al... Show More
  • A Comparative Study of Water Quality Between Hot Spring and Borehole Waters of Mara, Shinyanga and Manyara Regions of Tanzania

    Samwel Alfred Maseke, Maheswara Rao Vegi

    Issue: Volume 7, Issue 4, August 2019
    Pages: 82-89
    Received: Sep. 25, 2019
    Accepted: Oct. 11, 2019
    Published: Oct. 23, 2019
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    Abstract: This study conducted for the comparison of physico-chemical parameters between hot springs and borehole waters. Fourteen samples were collected at Mara, Shinyanga and Manyara in Tanzania. Multimeter used for the analysis of physical parameters pH, EC, TDS, salinity and turbidity. Titrimetric methods were used for the determination of Cl-, total har... Show More