Abstract: An in vitro method for the characterization of lipoproteins in a sample, comprising obtaining a 2D diffusion-ordered 1H NMR spectrum of the sample and performing a surface fitting of a portion of the spectrum corresponding to the methyl signal using a plurality of model functions, each model function corresponding to a given particle size associated to a lipoprotein fraction and subclass and including at least one model parameter to be estimated during the fitting, the estimated model parameters being the set of model parameters for which the difference between the NMR signal and the model signal built as a linear combination of the model functions is minimized, wherein each model function is a triplet of lorentzian functions.

Abstract: Analyzing system for the detection of reducing and oxidizing gases in a carrier gas, wherein the detection means are sensors based on semiconductor-type metal oxides that work in the absence of oxygen. The system includes means for connecting to a chamber which contains the sensors, and moreover in that the processing and control include a system of real-time recognition of the gases, which provides a diagram in which the measurements taken on the carrier gas are situated and identified. The analyzing system permits analysis of the gas in real time.

Abstract: Analyzing system for the detection of reducing and oxidizing gases in a carrier gas, wherein the detection means are sensors based on semiconductor-type metal oxides that work in the absence of oxygen. The system includes means for connecting to a chamber which contains the sensors, and moreover in that the processing and control include a system of real-time recognition of the gases, which provides a diagram in which the measurements taken on the carrier gas are situated and identified. The analyzing system permits analysis of the gas in real time.