Science Journal of Analytical Chemistry

Volume 5, Issue 6, November 2017

  • Quantitation of Aflatoxins in Food Materials Using HPLC-FLD Method

    Fevzi Kilicel, Hacer Sibel Karapinar, Aysel Cimen

    Issue: Volume 5, Issue 6, November 2017
    Pages: 90-97
    Received: Apr. 04, 2017
    Accepted: Apr. 22, 2017
    Published: Nov. 14, 2017
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    Abstract: In this study, a sensitive high performance liquid chromatography coupled to a fluorescence detector (HPLC-FLD) method after post-column derivatisation was applied for the presence of aflatoxins (AFs) in 45 samples (dried apricots, raisins, dried figs, nuts, peanuts, almonds, corn, redpepper, blackpepper, bread and moldy cheese). Samples were colle... Show More
  • Comparative Chromatographic and Spectrophotometric Methods for Quantitative Estimation of Paracetamol in Analgesic Tablet Dosage Forms

    Adams Udoji Itodo, Nnodim Vivian Onyinye

    Issue: Volume 5, Issue 6, November 2017
    Pages: 98-103
    Received: Mar. 10, 2017
    Accepted: Mar. 20, 2017
    Published: Nov. 28, 2017
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    Abstract: Poor quality drugs pose a challenge to many countries especially the developing countries. This present study is a scientific approach to further combat medicines counterfeiting as well as the validation of claimed drug specification on labels. This was achieved by comparing two analytical methods viz; spectrophotometric (UV-Vis) and Chromatographi... Show More
  • Determination of Trace Amounts of Copper in Samples of Sarcheshmeh Copper Mine Using Dispersive Liquid-Liquid Microextraction Based on the Solidification of Floating Organic Droplets Prior to FAAS

    Farzaneh Arabpour, Sayed Zia Mohammadi

    Issue: Volume 5, Issue 6, November 2017
    Pages: 104-106
    Received: Nov. 01, 2017
    Accepted: Nov. 20, 2017
    Published: Dec. 18, 2017
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    Abstract: In this article dispersive liquid–liquid microextraction [1, 2] based on the solidification of floating organic drop (DLLME-SFO) [3] was successfully used as a sample preparation method prior to flame atomic absorption determination of trace amount of copper in standard and wastewater samples [4]. Several factors that may be affected on the extract... Show More
  • Quantitative Analysis of the Flavonoid Mesquitol in the Medicinal Plant Prosopis juliflora with Seasonal Variations in Marigat, Baringo County-Kenya

    Mark Peter Odero, Were Lincoln Munyendo, Ambrose Kipchumba Kiprop

    Issue: Volume 5, Issue 6, November 2017
    Pages: 107-112
    Received: Nov. 07, 2017
    Accepted: Nov. 20, 2017
    Published: Jan. 02, 2018
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    Abstract: Several studies indicate that mesquitol exhibits significant free-radical scavenging properties, antioxidant and α-glucosidase inhibitory properties. This makes it a useful resource with potential for exploitation in both agro-food and pharmaceutical industries. The heartwood of the plant P. juliflora is noted to contain very high levels of the fla... Show More
  • Separation/Analysis of Congo Red by Using Poly (Ionic Liquid) Immobilized Magnetic Nanoparticles Magnetic Solid Phase Extraction Coupled with Fluorescence Spectrophotometry

    Almojtaba Abd Alkhalig Ahmed Bakheet, Xiashi Zhu

    Issue: Volume 5, Issue 6, November 2017
    Pages: 113-118
    Received: Nov. 15, 2017
    Accepted: Nov. 25, 2017
    Published: Jan. 02, 2018
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    Abstract: Magnetic solid phase extraction (MSPE) accompanied with fluorescence spectrophotometry using Poly (ionic liquid) immobilized magnetic nanoparticles (PIL-MNPs) as sorbent was introduced for Congo red analysis in food. Poly (1-vinyl-3-butylimidazolium) bromide immobilized (MNPs) were prepared through co-polymerization of 1-vinyl-3-hexylimidazolium-ba... Show More