12-tungstophosphoric-acid and malachite-green

12-tungstophosphoric-acid has been researched along with malachite-green* in 1 studies

Other Studies

1 other study(ies) available for 12-tungstophosphoric-acid and malachite-green

Article	Year
Resonance Rayleigh scattering spectra, non-linear scattering spectra of malachite green-12-tungstophosphoric acid system and its analytical application in fish. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2011, Volume: 78, Issue:1 In 0.1 molL(-1) (pH 1.0) HCl medium, 12-tungstophosphoric acid (TP) reacted with malachite green (MG) to form an ion-association complex. As a result, the new spectra of RRS, SOS and FDS appeared and their intensities were enhanced greatly. The maximum wavelengths of RRS, SOS and FDS were located at 334 nm, 586 nm and 330 nm, and the scattering intensities were proportional to the concentration of MG. Based on it a new method for the determination of MG has been established. The detection limits (3σ) of these methods were in the range of 3.7-27 ng mL(-1). The RRS, SOS, and FDS characteristics, absorption spectrum characteristics and optimum reaction conditions of the system were discussed. Effects of coexistent substances were tested, and the results demonstrated that this method had good selectivity. It has been applied to the determination of malachite green residues in fish flesh with satisfactory results. The reaction mechanism and reasons of RRS enhancement are discussed. Topics: Animals; Calibration; Fishes; Ions; Light; Nonlinear Dynamics; Osmolar Concentration; Phosphoric Acids; Rosaniline Dyes; Scattering, Radiation; Spectrum Analysis; Tungsten Compounds	2011

Article

Year

Resonance Rayleigh scattering spectra, non-linear scattering spectra of malachite green-12-tungstophosphoric acid system and its analytical application in fish.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2011, Volume: 78, Issue:1

In 0.1 molL(-1) (pH 1.0) HCl medium, 12-tungstophosphoric acid (TP) reacted with malachite green (MG) to form an ion-association complex. As a result, the new spectra of RRS, SOS and FDS appeared and their intensities were enhanced greatly. The maximum wavelengths of RRS, SOS and FDS were located at 334 nm, 586 nm and 330 nm, and the scattering intensities were proportional to the concentration of MG. Based on it a new method for the determination of MG has been established. The detection limits (3σ) of these methods were in the range of 3.7-27 ng mL(-1). The RRS, SOS, and FDS characteristics, absorption spectrum characteristics and optimum reaction conditions of the system were discussed. Effects of coexistent substances were tested, and the results demonstrated that this method had good selectivity. It has been applied to the determination of malachite green residues in fish flesh with satisfactory results. The reaction mechanism and reasons of RRS enhancement are discussed.

Topics: Animals; Calibration; Fishes; Ions; Light; Nonlinear Dynamics; Osmolar Concentration; Phosphoric Acids; Rosaniline Dyes; Scattering, Radiation; Spectrum Analysis; Tungsten Compounds

2011