Atomic emission spectroscopy

An easy-to-make new working electrode, an ex-in-situ AuF/GCE, was developed for trace As(III) detection. A gold film electrode prepared ex-situ was re-plated in-situ during each arsenic deposition step by adding Au(III) into the analyte solution.

7p vispiderman 15-06-2023 5 2   Download

A biocompatible nanocarrier system was prepared in this research through the reaction of calcium alginate (CA) with chitosan (CS). The structure of developed nanocarriers (CS-CA) was characterized by thermogravimetric analysis (TGA), Fourier transforms infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) atomic force microscopy (AFM), and transmission electron microscopy (TEM).

12p lyhuyenthu 31-01-2023 3 2   Download

Chemical Analysis: Modern Instrumentation Methods and Techniques (Second Edition) - Part 2 present the content: atomic emission spectroscopy, nuclear magnetic resonance spectroscopy, mass spectrometry, labelling methods, elemental analysis, potentiometric methods, voltammetric and coulometric methods, sample preparation, basic statistical parameters, optimization through the one-factor-at-a-time (OFAT),...

267p bachkhinhdaluu 03-12-2021 14 1   Download

Three new 2-component unsubstituted (4P), diiodo- (5P), and dibromo- (6P) distyryl-BODIPY-bridged cyclotriphosphazene dimers were designed and synthesized. The newly synthesized BODIPY-cyclotriphosphazene systems were characterized by 1 H, 13 C, and 31P NMR spectroscopy. The photophysical properties of the distryl-BODIPYs (4–6) and BODIPY-cyclotriphosphazene dyads (4P–6P) were studied by UV-Vis absorption and fluorescence emission spectroscopy.

13p tudichquannguyet 29-11-2021 11 1   Download

An anthracene based fluorescent probe, integrated with thiophene moiety, exhibited selective and sensitive detection of chromium (III) ions over other metal ions. Its synthesis was achieved by simple mixing of two commercially available compounds, 2-aminoanthracene, and 2-thiophenecarboxaldehyde, in onestep without the needed complex purification process. The probe molecule (ANT-Th) offered exceptional features such as “turn-on” fluorescence response, low detection limit (0.4 µM), and fast response time (

19p tudichquannguyet 29-11-2021 9 0   Download

The synthesis, structure, and luminescent properties of a samarium(III) complex (A2) containing benzoyltrifluoroacetone (HTFPB) and 1,2-bis[(anthracen-9-ylmethyl)amino]ethane (BAAE2) ligands are herein reported. The structure of A2 has been elucidated by infrared spectroscopy and single crystal X-ray diffraction. X-ray crystallographic analysis demonstrated that A2 has a mononuclear structure with a formula of Sm(TFPB)3 (BAAE2) in which Sm3+ ion is coordinated to six O-atoms from three TFPB ligands and two N-atoms from one ancillary ligand (BAAE2).

5p nguaconbaynhay12 13-06-2021 11 1   Download

In exploiting the analytical capabilities of plasma-based spectroscopy method, the evaluation of plasma parameters, particularly the plasma temperature, is a crucial step. In this work, a modified SahaBoltzmann plot, which uses the columnar densities of atomic and ionic ground levels, is utilized to calculate the plasma temperature in a laser-induced plasma from an aluminum alloy target. The columnar densities are here calculated by quantifying the self-absorption of resonance lines. It is demonstrated that this is a promising method for accurate determination of plasma temperature.

7p caygaocaolon1 13-11-2019 17 0   Download

Excimer lasers are pulsed gas lasers that intrinsically offer efficient and powerful broadband emission at several spectral regions throughout the ultraviolet. The spectral widths are typically 2 nm. An exception to this categorization is the XeF laser urith its broadly tunable C+A transition (approximately 50 nm) in the visible. The broad tunability results from the steeply repulsive A state.

502p beobobeo 01-08-2012 61 14   Download