A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

A DNA analysis method and a DNA analyzing device using terahertz wave capable of accurately determining a type of cancer from DNA using terahertz wave are disclosed. The DNA analysis method according to the present invention comprises: (a) irradiating terahertz wave onto methylated DNA; (b) detecting the terahertz wave reflected from the methylated DNA; (c) detecting a peak of a waveform of the terahertz wave detected in the step (b); and (d) determining type of cancer from the peak detected in the step (c).

A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of .sup.13C are determined. A source for the methane is determined based on the correlation.

An open path gas detection system includes a transmitter and a receiver. The transmitter is configured to generate illumination, having broadband spectrum, across an open path. The receiver is positioned to detect the illumination from the transmitter after the illumination has passed through the open path. The receiver includes at least one spectrometer configured to determine spectroscopic information of the illumination to identify at least one gas of interest based on the spectroscopic information and provide an output based on the at least one gas of interest.

A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of .sup.13C are determined. A source for the methane is determined based on the correlation.

The invention generally relates to methods, reagents, and substrates for detecting target analytes, especially spectroscopic techniques such as laser-induced breakdown spectroscopy (LIBS) for use in food authentication and molecular detection (e.g., when combined with later flow immunoassays (LFIA).

A method for analysing a sample uses a resonant support having a surface on which a plurality of separated photonic crystals extends. At least two crystals are configured to capture the same analyte. A resonance wavelength associated with each crystal varies with an amount of analyte in contact with the crystal. The wavelengths define a resonance spectral band between 200-1500 nm. The transmission/reflection of the light is maximum at an associated resonance wavelength. The method includes: illuminating the support in the resonance spectral band, the intensity of the lamination being variable in band; acquiring a measurement image using an image sensor, the image having different regions-of-interest each optically coupled to a photonic crystal; using a reference image representative of an image acquired by the image sensor, when the support is illuminated in the resonance spectral band in a reference configuration; and comparing the measurement image with the reference image.

A method for analysing a sample uses a resonant support. The sample extends on the support having a surface on which a plurality of separated photonic crystals extend. The sample extends between a light source and the crystals, wherein a resonance wavelength is associated with each crystal addressing the analyte and the wavelengths of the crystals define a resonance spectral band extending between 2 μm and 20 μm. The transmission or reflection of light by each crystal addressing the analyte is maximum at the associated resonance wavelength. The method includes illuminating the support by the light source, the light source emitting an illumination lightwave defining an illumination spectral band which at least partially covers the resonance spectral band, such that a plurality of crystals are simultaneously illuminated; acquiring an image of the support, and then determining the presence of the analyte in the sample from the image.

A preparation method for preparing spectrometric determinations of a measurand in a target application using a spectrometer is provided. On the basis of reference data recorded in the target application, a normalized measurand master spectrum with a spectral distribution characteristic of the measurand is determined. On the basis of the measurand master spectrum, synthetic spectra are generated which cover a value range greater than or equal to a value range covered by the reference values. On the basis of the synthetic spectra, information for carrying out the spectrometric determinations, including information comprising a property, a wavelength range, and/or a path length range for an optical path length suitable for carrying out the spectrometric determinations, and/or comprising a calculation rule, with which, on the basis of measurement spectra in the target application, measured values of the measurand are determined.

The SACOS apparatus solves counterfeiting issues instantaneously and develops new security features in order to improve the role that international regulatory commissions, governments, and central banks play to effectively fight counterfeiting.