Results 101 to 110 of about 217,951 (354)

Pemeriksaan Kimia Darah (Glukosa Darah, Kolesterol dan Asam Urat) Menggunakan Metode Stick Test dan Metode Spektrofotometri dari Sampel Darah Masyarakat RW 22 Kelurahan Nusukan Kecamatan Banjarsari Kota Surakarta

Journal of Health (JOH), 2016
Nusukan is one village with a tendency for people who prefer to consume fast food and lack of attention to a healthy lifestyle. This causes a lot of society are affected by diabetes mellitus, hyperlipidemia and uric acid.
Rinda Binugraheni, Susan Primadevi, Rahmat Budi Nugroho, Dian Kresnadipayana, Gregorius Indra Budianto   +4 more
doaj   +1 more source

Solid phase extraction and a spectrophotometric method for the determination of trace amounts of gold with 4-rhodanineazo benzoic acid [PDF]

Journal of the Serbian Chemical Society, 2009
The synthesis and application of 4-rhodanineazo benzoic acid (4-BARA) as a new chromogenic reagent for the determination of gold is described. A highly sensitive, selective, and fast method for the determination of gold based on its rapid reaction with 4-
Huang Jie Zhang, Wang Guo Xiao, Zhang Jun   +2 more
doaj   +1 more source

Aqueous Synthesis of Poly(ethylene glycol)‐Amide‐Norbornene‐Carboxylate for Modular Hydrogel Crosslinking

Advanced Materials Interfaces, EarlyView.
An all aqueous synthesis of poly(ethylene glycol)‐amide‐norbornene‐carboxylate (PEGaNBCA) is developed via reacting carbic anhydride with amino‐terminated PEG. PEGaNBCA is readily crosslinked into hydrogels by click chemistries. PEGaNBCA crosslinked thiol‐norbornene hydrogels are hydrolytically stable but can be rendered hydrolytically labile through ...
Nathan H. Dimmitt, Chien‐Chi Lin
wiley   +1 more source

Spectrophotometry in Stellar Associations [PDF]

Symposium - International Astronomical Union, 1978
When analyzing the spectral energy distributions of early type stars as measured at Cerro Calán, we find that many of them have a feature which we have called ΔD (Gutiérrez-Morenoet al., 1968); the internal error of the measure of ΔD for a single star is ±0.02.
Hugo Moreno, A. Gutierrez-Moreno
openaire   +2 more sources

Synthesis of Bimetallic (Iron–Cobalt) Single Atom Catalysts for Electrochemical Detection of Nitrites

Advanced Materials Technologies, EarlyView.
A CO2 laser‐assisted solid‐state synthesis of a bimetallic single‐atom catalyst is presented. The resulting material consists of a 3D porous graphene support with iron and cobalt atoms anchored as single atoms. Through electrochemical methods, the material's efficiency is demonstrated in the sensitive and selective determination of nitrite, mimicking ...
Guillermo Tostado‐Blazquez, Messaoud Harfouche, Jose L. Cerrillo, Abdullah Bukhamsin, Veerappan Mani, Khaled Nabil Salama   +5 more
wiley   +1 more source

Spectrophotometric determination of phosphorus in iron alloys employing a flow injection system

Journal of the Brazilian Chemical Society, 2001
A flow-injection procedure for spectrophotometric determination of phosphorus in electrolytic iron and iron alloys is proposed. The method is based on the ammonium molybdate reaction followed by stannous chloride reduction in acidic medium.
Gervasio Ana P. G., Miranda Carlos E. S., Luca Gilmara C., Tumang Cristiane A., Campos Luis F. P., Reis Boaventura F.   +5 more
doaj  

Catalytic Spectrophotometric Determination of Traces of Tellurium (IV) [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1995
A Simple, rapid and sensitive method has been developed for determination of trances of tellurium (VI) (0.096-1.250 mg/mL) based on its catalytic effect on the reduction reaction of toluidine blue by sulfide ion at pH 4.
Mojtaba Shamsipur, Mir Fazlollah Mousavi
doaj  

Determination of traces of nitrate in water samples using spectrophotometric method after its preconcentration on microcrystalline naphthalene

Química Nova, 2011
Nitrate is quantitatively retained with 2,6-bis(4-methoxyphenyl)-4-phenyl pyrylium perchlorate (PPP) on microcrystalline naphthalene in the pH range of 6.5-9.0 from a large volume of aqueous solutions of various samples.
Mohammad Reza Baezzat, Golabatoon Parsaeian, Mohammad Ali Zare   +2 more
doaj   +1 more source

Spectrophotometric determination of cyanide in aqueous samples after its conversion to thiocyanate and complexation to ferric-thiocyanate [PDF]

Journal of Applied Research in Water and Wastewater, 2019
A simple spectrophotometric method is developed for the determination of traces of cyanide ion in water samples. Toxic cyanide was reacted with sulfur (S8) dissolved in acetone and converted to non-toxic thiocyanate which is more stable than cyanide also.
Mohammad Samimifar
doaj   +1 more source

Wavelength‐Selective, High‐Speed, Self‐Powered Isotype Heterojunction n+‐ZnO/n‐Si Photodetector with Engineered and Tunable Spectral Response

Advanced Materials Technologies, EarlyView.
Wavelength‐selective ZnO/Si photodetectors, operating with no power supply. Engineering of the constituting materials converts them from white‐light sensitive to only NIR‐sensitive. When external power is applied, the wavelength selectivity of the devices can be tuned to different spectral ranges.
Michael D. Tsanakas, Angelina Jaros, Yves Fleming, Metamorfi Efthimiadou, Tobias Voss, Renaud Leturcq, Spiros Gardelis, Maria Kandyla   +7 more
wiley   +1 more source