In this article,the method of the AFS-2202a atomic fluorescence spectrometer for simultaneous determination of trace Se and Hg in water is studied,the determination limit of Se and Hg is 0.31μg/L and 0.01μg/L,the linear range is 0~20μg/L and 0~2.00μg/L.
This paper introduced a method in weather forecast by using the 27changes in 24 hours of the air pressure, temperature and the absolute humidity at eight o'clock in a single station with the simultaneous weather situation considered.
It was confirmed that this method was rapid, simple, highly sensitive, stable, and had the property of simultaneous determination of PCn and other thiol-containing compounds.
These features were exploited to improve analytical performances in simultaneous determination of the minor ingredient of pseudoephedrine hydrochloride and the major ingredient of ibuprofen in a pharmaceutical preparation.
(2) Simultaneous in-situ polymerization of monomers and self-assembly of the polymers.
A rapid and reliable high performance liquid chromatographic (HPLC) method for the simultaneous determination of heterocyclic compounds, namely nicotinic acid, nicotinamide, and 3-cyanopyridine, in industrial effluent is described.
In combination with the reliability measure for constraints function, the reliable data constraints of the images were decomposed with multi-level simultaneous wavelet transform rather than the traditional coarse-to-fine approach.