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Permanent URI for this collectionhttps://hdl.handle.net/11443/932

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Subject: search.filters.subject.nitrate

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    Exposure to Perchlorate in Lactating Women and Its Associations With Newborn Thyroid Stimulating Hormone
    (FRONTIERS MEDIA SA, 2018-01-01) Ucal, Yasemin; Sahin, Ozlem N.; Serdar, Muhittin; Blount, Ben; Kumru, Pinar; Muhcu, Murat; Eroglu, Mustafa; Akin-Levi, Cansu; Keles, Z. Zeynep Yildirim; Turam, Cem; Valentin-Blasini, Liza; Morel-Espinosa, Maria; Serteser, Mustafa; Unsal, Ibrahim; Ozpinar, Aysel
    Background: Perchlorate, thiocyanate, and nitrate can block iodide transport at the sodium iodide symporter (NIS) and this can subsequently lead to decreased thyroid hormone production and hypothyroidism. NIS inhibitor exposure has been shown to reduce iodide uptake and thyroid hormone levels
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    A sample stacking-capillary electrophoresis method for simultaneous determination of nitrate and thiocyanate ions of ultra-heat-treated milk samples
    (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2018-01-01) Tezcan, Filiz
    Ultra-heat-treated (UHT) cow milk is mostly consumed in Turkey. Heating milk can cause some chemical and biochemical changes that affect different components of milk. However, studies on the constituents of UHT milk are scare. In the present study, nitrate and thiocyanate contents of commercial UHT whole cow milk were determined simultaneously by sample stacking-capillary electrophoresis. The best separation of nitrate and thiocyanate ions was performed by reducing the electroosmotic flow at pH 4.0 using 30 mM formic acid and 30 mM sodium sulfate containing separation electrolyte. Analysis was completed in less than 3 min. The limits of detection obtained at a signal-to-noise ratio of 3 for nitrate and thiocyanate were 0. 03 mg/L (0.48 mu mol/L) and 0.06 mg/L (1.03 mu mol/L), respectively. The nitrate concentration in commercial UHT milk samples ranged between 0.20 and 1.50 mg/L (3.23-24.20 mu mol/L) and the thiocyanate ion concentration ranged between 0.41 and 0.67 mg/L (7.06-11.55 mu mol/L).