نتایج جستجو برای: fluoride determination

تعداد نتایج: 270667  

2015
Lei Shi Chao Jing Zhen Gu Yi-Tao Long

Scattering recovered plasmonic resonance energy transfer (SR-PRET) was reported by blocking the plasmon resonance energy transfer (PRET) from gold nanoparticle (GNP) to the adsorbed molecules (RdBS). Due to the selective cleavage of the Si-O bond by F- ions, the quenching is switched off causing an increase in the brightness of the GNPs,detected using dark-field microscopy (DFM) were brightened...

Journal: :Clinical biochemistry 2012
Arjun Trivedi Sandra Babic Jean-Pierre Chanoine

OBJECTIVES To investigate the effect of hemolysis and protease inhibitors on acylated ghrelin (AG) concentrations measured with a double antibody enzyme immunometric assay that uses an acetylcholinesterase (AChE)-Fab' conjugate. DESIGN AND METHODS Samples were hemolysed or treated with PHMB (p-hydroxymercuribenzoate), PMSF (phenylmethanesulfonylfluoride) or AEBSF (4-(2-Aminoethyl) benzenesulf...

Journal: :international journal of environmental research 2010
a. rahmani j. nouri s. kamal ghadiri a.h. mahvi r. zarem

besides human dental and skeletal fluorosis, drinking water above permissible levels of fluoride is known to cause a wide range of adverse health effects. in this study, the adsorption of fluoride from aqueous solution onto pretreated zeolite has been studied by using batch test. the large surface area of natural zeolite (i. e., clinoptilolite from miyaneh region, iran) was utilized to create a...

2009
Kelly Polido Kaneshiro Olympio Vanessa Eid da Silva Cardoso Maria Fernanda Borro Bijella Juliano Pelim Pessan Alberto Carlos Botazzo Delbem Marília Afonso Rabelo Buzalaf

OBJECTIVE This study evaluated the bioavailability of fluoride after topical application of a dual-fluoride varnish commercially available in Brazil, when compared to Duraphat. MATERIAL AND METHODS The urinary fluoride output was evaluated in seven 5-year-old children after application of the fluoride varnishes, in two different phases. In the first phase (I), children received topical applic...

Journal: :European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry 2011
M C Vitale D Zaffe A R Botticell C Caprioglio

AIM To evaluate chemically the effects of diode laser on fluoride uptake before and after laser irradiation of enamel surfaces. METHODS Crowns of 20 sound human teeth were halved and a 3 x 3 mm acid-resistant varnish uncovered window left for: A) no treatment; B) fluoride (Elmex gel); C) diode (fluoride + diode laser); D) diode (diode laser + fluoride). The dental surfaces were analysed using...

حسین شریعتمداری, , نوراله میرغفاری, ,

Concentration of soluble fluoride in groundwater, soil, and some crops in Isfahan region was determined by Ion Selective Electrode (ISE) method. The mean fluoride concentration of water samples in the study area was 0.3 and 0.05 mg L-1 in the spring and summer, respectively. These values are in an acceptable limit for irrigation, whereas for drinking water, they are in deficiency range. The ave...

Background & Aim: Fluoride concentration in drinking water within the optimal range reduces dental caries and prevents dental fluorosis. This study was conducted to determine the level of fluoride in drinking water resources in Torbat Heydariyeh City in 2016-17. Methods: This descriptive cross-sectional study was conducted on 22 wells used to supply drinking water of Torbat Heydariyeh City. A ...

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