Abstract: The present invention relates to devices comprising electrosensors containing capture reagents, their preparation thereof, and their use for detecting, preferably, quantitative measurement, of analyte in a liquid sample. In particular, the invention relates to an enzyme electrosensor, e.g., electroimmunosensor, device for electrochemical detection and preferably, real-time measurement, which is suitable for use at point-of-care settings by unskilled personnel.

Abstract: A method and apparatus of atomic emission spectrometry includes confining a solution within an emission chamber for on-line analysis or individual sample analysis. An electrical discharge created within the liquid to directly excite an internal portion of the liquid within the liquid solution. The atomic emission is totally enclosed within a liquid solution pocket. A fiber optic probe is connected directly to the excited internal portion within the liquid and to a suitable analyzer which analyzes the atomic spectral lines to determine the atomic elements within the liquid solution. The system can be used for individual element analysis or a multiple element analysis by use of an array spectrometer, with a simultaneous display of the complete atomic spectrum of multiple elements in a liquid solution, all in less than a period of one second.

Abstract: The present invention is directed to a novel method for analyzing aqueous systems to simultaneously quantify the concentrations of multiple active or inactive treating components which may be contained therein. The method comprises determining the absorbance or emission spectrum of the components in the aqueous system over the wavelength range of from 200 to 2500 nm, and then applying chemometrics algorithms to extract and analyze features in the spectrum that are specific to the qualitative and quantitative concentrations from the specific components to simultaneously determine the concentrations of the components.