نتایج جستجو برای: h3po4

تعداد نتایج: 559  

ژورنال: مجله دندانپزشکی 2011
اسلامی امیرآبادی, غلامرضا, مهویدی زاده, سمانه, نصیری, مجید,

Background and Aims: The aim of this in vitro study was to compare shear bond strength of metal brackets bonded to dental porcelain on the basis of presence or absence of silane, type of acid [hydrofluoric acid (HF) or phosphoric acid (H3PO4)] and roughness of porcelain surface (glazed or deglazed) within mouth-like environment.Materials and Methods: Eighty glazed ceramic disks were randomly di...

Journal: :Journal of environmental quality 2004
Sally Brown Rufus Chaney Judith Hallfrisch James A Ryan William R Berti

A study was established near a former Zn and Pb smelter to test the ability of soil amendments to reduce the availability of Pb, Zn, and Cd in situ. Soil collected from the field was amended in the lab with P added as 1% P-H3PO4, biosolids compost added at 10% (referred to hereafter as "compost"), and a high-Fe by-product (referred to hereafter as "Fe") + P-triple superphosphate (TSP) (2.5% Fe ...

Journal: :Angewandte Chemie 2010
Hangxun Xu Nick G Glumac Kenneth S Suslick

When a liquid is subjected to high-intensity ultrasound, bubbles are formed, grow, and implosively collapse. This phenomenon of acoustic cavitation generates both chemical reactions (i.e., sonochemistry) and the emission of light (i.e., sonoluminescence, SL). It is generally agreed that both sonochemistry and sonoluminescence result from the intense compressional heating of gas and vapor inside...

Journal: :Acta crystallographica. Section B, Structural science 1988
R H Blessing

Two neutron data sets, which had been analyzed separately to determine the H-atom positions in H3PO4 crystals [Cole (1966). PhD Thesis, Univ. of Washington, Pullman, USA], have been re-analyzed in a joint refinement, fitting separate scale and extinction parameters for each data set, in order to obtain more precise positional and vibrational parameters. The new refinement gave R(F) = 0.036 for ...

2014
Maíra PRADO Renata Antoun SIMÃO Brenda Paula Figueiredo de Almeida GOMES

UNLABELLED The development and maintenance of the sealing of the root canal system is the key to the success of root canal treatment. The resin-based adhesive material has the potential to reduce the microleakage of the root canal because of its adhesive properties and penetration into dentinal walls. Moreover, the irrigation protocols may have an influence on the adhesiveness of resin-based se...

2012

Carisolv method is a minimally invasive treatment of carious lesions which may improve patient collaboration and allow care of minimal dental cavities, especially in young people. The aim of this study was to compare H3PO4 and Carisolv in vitro treatments of human dentin applying microradiography, SEM examination and X-ray microanalysis to evaluate the capacity of these products to clean dentin...

2015
Muhammad Idrees Ahmad Adnan Fahim Ashraf Qureshi

Corncob is an agriculture waste found to consist of 38.9% cellulose and 43.4% hemicellulose on dry solid (w/w %) basis and thus considered a potential source for fermentable sugars. These sugars can potentially be extracted through combined chemical pretreatment and enzymatic saccharification. The present study is aimed to optimized the pretreatment process by using variety of alkali and acids ...

Journal: :Crystals 2023

In this paper, the conditions of phase formation in system CsOH–H2SO4–H3PO4–H2O are considered for first time. The Cs6(SO4)3(H3PO4)4 at t = 50 °C has been studied extensively. main concentration boundary compound solubility congruence is shown. Conditions and approaches obtaining crystals by isothermal evaporation saturated solution temperature reduction methods considered. results with maximum...

2014
Francesco Lanucara Dave Chi Hoo Lee Claire E. Eyers

A one-step enzymatic reaction for improving the collision-induced dissociation (CID)-based tandem mass spectrometry (MS/MS) analysis of phosphorylated peptides in an ion trap is presented. Carboxypeptidase-B (CBP-B) was used to selectively remove C-terminal arginine or lysine residues from phosphorylated tryptic/Lys-C peptides prior to their MS/MS analysis by CID with a Paul-type ion trap. Remo...

2015
Núbia-Inocencya-Pavesi Pini Débora-Alves-Nunes-Leite Lima Gláucia-Maria-Bovi Ambrosano Wander-José da Silva Flávio-Henrique-Baggio Aguiar José-Roberto Lovadino

BACKGROUND This study evaluated the effects of the acids used in the microabrasion on enamel. MATERIAL AND METHODS Seventy enamel/dentine blocks (25 mm2) of bovine incisors were divided into 7 groups (n=10). Experimental groups were treated by active/passive application of 35% H3PO4 (E1/E2) or 6.6% HCl (E3/E4). Control groups were treated by microabrasion with H3PO4+pumice (C5), HCl+silica (C...

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