|应用||应用于复合氟化物 NaHoF4 和 Na uF4 的新型水热合成法中，这些化合物具有萤石型结构，对于固态激光器以及光致发光和磁性特征很重要。|
|个人防护设备||Eyeshields,Faceshields,Gloves,type P2 (EN 143) respirator cartridges|
Facile synthesis of TiO2 nanocrystals using NH4F as morphology-controlling agent and its influences on photocatalytic activity.
Controllable synthesis of nanomaterials with different morphologies can significantly affect their properties. Here we report that the morphology and facet orientation of TiO2 nanocrystals can be read...Read More
Development of a highly sensitive method for the quantification of estrone and estradiol in serum by liquid chromatography tandem mass spectrometry without derivatization
Measurement of estrone (E1) and estradiol (E2) values...Read More
Previously, nano-sized calcium fluoride (CaF?) particles were prepared using a spray drying method by simultaneously feeding Ca(OH)? and NH?F solutions to a two-liquid nozzle. The aim of the present s...Read More
We prepared a photocatalyst using diatom frustules by the liquid phase deposition (LPD) method. Purified native frustules were reacted with boric acid (H3BO3) and ammonium hexafluorotitanate ((NH4)2Ti...Read More
Nitrogen-doped TiO"2 modified with NH"4F for efficient photocatalytic degradation of formaldehyde under blue light-emitting diodes
A nitrogen-doped TiO"2 (N-TiO"2) photocatalyst was prepared by calcination of the hydrolysis precipitate of Ti(SO"4)"2 with aqueous ammonia. The prepared N-TiO"2 was treated w...Read More
(111) silicon surfaces can be controlled down to atomic level and offer a remarkable starting point for elaborating nanostructures. Hydrogenated surfaces are obtained by oxide dissolution in hydrofluo...Read More
Fluorine-doped tin dioxide (FTO) nanocrystals were prepared with a sol-gel process followed by a hydrothermal treatment using SnCl"4 and NH"4F as SnO"2 and fluorine dopant, respectively...Read More
Extraction of beryllium from refractory beryllium oxide with dilute ammonium bifluoride and determination by fluorescence: a multiparameter performance evaluation.
Beryllium exposure can cause a number of deleterious health effects, including beryllium sensitization and the potentially fatal chronic beryllium disease. Efficient methods for monitoring beryllium c...Read More
Effects of ammonium hexafluorosilicate concentration on dentin tubule occlusion and composition of the precipitate
Ammonium hexafluorosilicate [SiF: (NH"4)"2SiF"6] was prepared in order to overcome the tooth discoloration caused by diamine silver fluoride [AgF: (NH"3)"2AgF] application. We...Read More
The synthesis, X-ray diffraction, photoluminescence, TGA/DTA and FTIR techniques in Dy(3+) activated Na(2)Sr(PO(4))F phosphor are reported in this paper. The prepared phosphor gave blue, yellow and re...Read More
Palladium-citric acid-ammonium fluoride as a matrix modifier for overcoming of interferences occurring during the direct determination of Sn in aqua regia extracts from environmental samples by D"2-ETAAS
When tin is to be determined in such a complex matrix like aqua regia extracts of environmental samples by electrothermal atomic absorption spectrometry (ETAAS), spectral interferences occur when deut...Read More
The catalytic, enantioselective, [4 + 2] cycloaddition reaction of ortho-quinone methides with silyl ketene acetals is described. This mechanistically interesting reaction, initiated by a chiral cinch...Read More
A swift and efficient approach to converting organic dye effluents into fresh water could be of substantial benefit. In this study, we presented facile hydrothermal synthesis of K1.33Mn8O16 nanowires ...Read More
Post-synthesis, characterization and catalytic properties of fluorine-planted MWW-type titanosilicate.
F-Ti-MWW was post-synthesized by implanting fluorine species into a Ti-MWW framework through an acid treatment process in the presence of ammonium fluoride. The effects of NH4F addition amount, acid t...Read More
This unit describes two protocols for the deprotection of 2'-O-TBS groups in oligoribonucleotides under mild conditions. Desilylation using ammonium fluoride is applicable to fully protected ...Read More
Template free synthesis of crystallized nanoporous F-Ta2O5 spheres for effective photocatalytic hydrogen production.
Crystallized and fluorinated nanoporous Ta(2)O(5) spheres were prepared by a combination of co-precipitation and hydrothermal methods in a NH(4)F-containing water solution. The as-prepared porous sphe...Read More
Ammonium bifluoride is one of the most corrosive acids that may produce severe chemical burns when in contact with skin. This hazardous chemical is widely used in household products. We report two ped...Read More
Preparation and chromatographic evaluation of a cysteine-bonded zwitterionic hydrophilic interaction liquid chromatography stationary phase.
A cysteine-bonded zwitterionic hydrophilic interaction chromatography (HILIC) stationary phase (Click TE-Cys) was prepared based on the "thiol-ene" click chemistry. The Click TE-Cys material...Read More
Catalytic degradation of the nerve agent VX by water-swelled polystyrene-supported ammonium fluorides.
The catalytic degradation of the nerve agent VX (O-ethyl S-2-(diisopropylamino)ethyl methylphosphonothioate) by water-swelled polymer-supported ammonium fluorides is described. VX (0.06-0.53 mol/mol F...Read More
Effect of concentration of trimethylchlorosilane (TMCS) and hexamethyldisilazane (HMDZ) silylating agents on surface free energy of silica aerogels
The surface free energy of a solid determines its surface and interfacial behavior in processes like wetting and adhesion which is crucial for silica aerogels in case of organic liquid absorption and ...Read More
We report a practical global deprotection of RNA 2'-O-tert-butyldimethylsilyl (TBS) ethers using commercially available aqueous NH(4)F. The procedure is applicable to both 96-well plate format an...Read More
Chitin-based organic networks: an integral part of cell wall biosilica in the diatom Thalassiosira pseudonana.
We're sorry this abstract is currently not available....Read More
The characterization and activity of F-doped vanadia/titania for the selective catalytic reduction of NO with NH"3 at low temperatures
A F-doped vanadia/titania catalyst has been developed by partly substituting the lattice oxygen of the catalyst with fluorine, using NH"4F as a precursor. The aim of this novel design was to prom...Read More
Previously, we reported that anodized porous titanium implants have photocatalytic hydrophilicity. However, this effect was not always sufficient for the significant improvement of bone apposition....Read More
The purpose of this paper is to report a case of fluoride poisoning along with a discussion of poisoning characteristics, analytical procedures, and a review of previous reports of fatal intoxications...Read More