The invention relates to a portable multi-spectrometry system for chemical and biological sensing in atmospheric air. A portable, spectrometric system integrates multiple spectroscopy theories, combines their advantageous features, and fills the gaps for their limitations. The combined spectrometry system with operations for PLS, IRAS, MAS, MFS, RSS, and MS, will detect particles and chemicals, directly and sequentially, in the same air-stream.

The present invention enables an analysis device that utilizes light absorption to measure concentrations of target components by means of a simple calculation, and without any complex spectrum calculation processing being required, and analyzes target components that are contained in a sample, and is provided with a light source that emits modulated light whose wavelength is modulated relative to a central wavelength using a predetermined modulation frequency, a photodetector that detects an intensity of sample light obtained when the modulated light is transmitted through the sample, a correlation value calculation unit that calculates correlation values between intensity-related signals that are related to the intensity of the sample light, and predetermined feature signals, and a concentration calculation unit that calculates concentrations of the target components using the correlation values obtained by the correlation value calculation unit.

A method is disclosed for increasing an intensity of a signal detected in a spectroscopy device using a vapor cell and a spectroscopy device using the same. An operation method of the spectroscopy device may include: causing a first light for exciting an atom trapped in a vapor cell in a first hyperfine ground state to a first excited state to be incident on the vapor cell; causing a second light for exciting an atom trapped in the vapor cell in a second hyperfine ground state to a second excited state to be incident on the vapor cell; causing a third light for exciting the atom in the second excited state to a third excited state to be incident on the vapor cell; and detecting fluorescence which is emitted while the atom in the third excited state returns to the ground state.

The absorbance of a mixed sample at multiple wavelengths is determined and the concentrations of the sample constituents deduced from the observed absorbances. Assuming the sample constituents are known, these wavelengths correspond to peak absorption wavelengths for the constituents. Rather than attempt to generate an analytical relationship among absorbance levels and constituent concentrations, a database of absorbance values for each wavelength, spanning the range of possible analyte concentrations, is employed instead. In general, the wavelengths utilized correspond to peak absorption wavelengths for each of the analytes.

A processing system monitors and/or controls a surface modification process occurring on a substrate within a processing chamber. An optical processing module having a light emission submodule to output a generated light signal and an optical detection submodule to detect a resultant light signal, is connected via fiber optic cables to light illuminating and light receiving components located within the chamber. A processor determines an amount of atomic absorption by an atomic element encountered by a probing beam passing between the illuminating and receiving components, based on the intensity of the generated light signal, the intensity of the received light signal and optionally the spontaneous emission of the atomic element in the absence of illumination by a probing beam. Based on the determined amount, the system derives a plurality of parameters of the modified substrate, their spatial and temporal uniformity, and information about process conditions in the processing chamber.

A concentration measurement device for measuring the concentration of a measured fluid within a measurement cell by detecting transmitted light that has passed through the measurement cell having a light incidence window and a light emission window disposed opposing to each other, comprising a reflected-light detector for detecting reflected light of the light incidence window.

The present disclosure provides methods of assessing DAR of ADC products that provide advantages over known methods. Specifically, methods of the disclosure can be used in high-throughput applications and/or without having to dilute ADC samples during the assessment.

The present disclosure relates to an encoding method and a decoding method using a chiral metal nanostructure. The encoding method according to an aspect of the present disclosure includes preparing a plurality of metal nanostructures having a chiral structure; obtaining the optical data of the plurality of metal nanostructures, and preparing a security medium including the plurality of metal.

Method for detecting colon or colorectal cancer by measuring heavy metal concentrations in colon or colorectal tissue using laser-induced breakdown spectroscopy (LIBS).

A system for analyzing excreta includes at least a portion configured to be embedded in a toilet and to collect at least a portion of excreta, and includes a plurality of rotating chambers assigned uniquely to each user and configured to produce a supernatant from the collected excreta, and wherein the system is configured to analyze excreta from multiple users and associate results with each of the multiple users. A method for analyzing excreta comprises collecting at least a portion of excreta from a toilet using a system that is at least partially embedded in the toilet, generating acoustic waves that solubilize the collected excreta, and analyzing the solubilized collected excreta. A method for analyzing excreta comprises collecting at least a portion of excreta from a toilet using a system that is at least partially embedded in the toilet, and acquiring assay data from the collected excreta utilizing an optical disc reader.