Results 251 to 260 of about 273,868 (276)

Stationary cuvette: a new approach to obtaining analytical curves by UV–VIS spectrophotometry

Phytochemical Analysis, 2009
AbstractBackgroundInvestigations in the field of pharmaceutical analysis and quality control of medicines require analytical procedures that achieve suitable performance. An analytical curve is one of the most important steps in the chemical analysis presenting a direct relationship to features such as linearity.ObjectiveThis study has the aim of ...
K G H, Silva, F H Xavier, Júnior, I E G, Farias, A K A, Silva, J A Caldas, Neto, L C A, Souza, R R, Santiago, F Alexandrino, Júnior, T Nagashima, Júnior, L A L, Soares, N S, Santos-Magalhães, E S T, Egito   +11 more
openaire   +2 more sources

Evaluation of the effect of organic pollutants exposure on the antioxidant activity, total phenolic and total flavonoid content of lettuce (Lactuca sativa L.) using UV–Vis spectrophotometry and chemometrics

, 2021
Nastaran Nikzad, H. Parastar
semanticscholar   +1 more source

A direct and rapid method for determination of total iron in environmental samples and hydrometallurgy using UV–Vis spectrophotometry

Microchemical journal (Print), 2022
Fei Cheng, Taiming Zhang, Chunhua Yang, Hongqiu Zhu, Yonggang Li, T. Sun, Can Zhou   +6 more
semanticscholar   +1 more source

In-vitro Equilibrium Phosphate Binding Study of Sevelamer Carbonate by UV-Vis Spectrophotometry

Drug Research, 2018
AbstractSevelamer carbonate is a cross-linked polymeric amine; it is the active ingredient in Renvela® tablets. US FDA provides recommendation for demonstrating bioequivalence for the development of a generic product of sevelamer carbonte using in-vitro equilibrium binding study.
Budi, Prasaja, M Maulana, Syabani, Endah, Sari, Uci, Chilmi, Prawitasari, Cahyaningsih, Theresia Weliana, Kosasih   +5 more
openaire   +2 more sources

DNA binding and dispersion activities of titanium dioxide nanoparticles with UV/vis spectrophotometry, fluorescence spectroscopy and physicochemical analysis at physiological temperature

, 2016
Overexposure of TiO2 NPs has raised concerns over safety. This study focuses on stability and DNA binding activity of TiO2 NPs in water and cell culture growth media RPMI-1640 at physiological temperature.
Suhani J. Patel, Palak Patel, S. B. Undre, Shivani R. Pandya, Man Singh, S. Bakshi   +5 more
semanticscholar   +1 more source

Flow injection analysis of sulphite by gas-phase molecular absorption UV/VIS spectrophotometry

Talanta, 1997
A flow injection gas-phase molecular absorption spectrophotometric method is described for the determination of sulphite in aqueous solution. The sulphite solution, 200 microl, is introduced into a stream of distilled water. The carrier stream containing a sulphite zone is reacted, in the first mixing coil, with a stream of sulphuric acid (1 M).
A, Safavi, B, Haghighi
openaire   +2 more sources

[On-line coupling of microcolumn electrophoresis and UV-Vis spectrophotometry].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
In the present paper, a laboratory-made high-performance electrophoresis microcolumn unit was prepared for UV-Vis spectrophotometer. X-ray diffraction was used in the preparation of electrophoretic microcolumns. And an analytical technique of microcolumn electrophoresis coupled with UV-Vis spectrophotometry was introduced. Uniform quartz microncrystals
Lian, Li, You-Zhao, He, Wu-Er, Gan, Xiao-Kui, Wang, Hai-Yang, Xie, Yong, Gao   +5 more
openaire   +1 more source

Uric acid analysis using AgNO3 with UV-Vis spectrophotometry method

AIP Conference Proceedings, 2023
Nabila Nurul A’in, Alizar Ulianas, Nurhafizah Azwir, Indah Gusti Fauzi, null Wahyudi   +4 more
openaire   +1 more source

[Rapid Determination of Dodecylmorpholine in Aqueous Solutions with UV-Vis Spectrophotometry].

Guang pu xue yu guang pu fen xi = Guang pu, 2018
A rapid UV-Vis spectrophotometric method was proposed to determine the concentration of DMP in aqueous solutions. The linear concentration range of DMP solution at the range of 250～400 nm is 0.5～70 mmol·L(-1). At 275 nm, the linear fitting equation is A=0.030 7c+0.133 0 with a correlation of 0.980 9.
Chao-ming, Quan, Yao-qiang, Hu, Hai-ning, Liu, Ming-zhen, Li, Xiu-shen, Ye, Zhi-jian, Wu   +5 more
openaire   +1 more source

Trace determination of chromium(VI) in environmental water samples using innovative thermally reduced graphene (TRG) modified SiO₂ adsorbent for solid phase extraction and UV-vis spectrophotometry.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2016
H. Sereshti, M. Farahani, M. Baghdadi
semanticscholar   +1 more source