photometric detector Articles

  • Encoded photometric infrared spectroscopy

    General Principle The EP-IR system contains the encoder-spectrograph, as well as a real-time embedded micro-processor for signal analysis, data treatment, and Chemometrics (quantitative) analysis in a single small-footprint enclosure. Operation Principle An infrared polychromatic beam is emitted from an external source (e.g. glow bar) onto the sample. Then ...


    By CIC Photonics

  • Application of the PEDD flow detector for analysis of natural dissolved organic substances in coloured water

    The automated techniques of measurement of water parameters are developed based on flow analysis (flow injection analysis, sequential injection analysis). PEDD detectors (paired emitter–detector diode), built with the use of two paired light-emitting diodes (LEDs) – emission and detection, can serve that purpose. The aim of the studies was to optimize the system for determination ...


    By IWA Publishing

  • What`s so precise about the Precision Series?

    The best results are usually achieved with precision, something Peak recognized when creating our Precision series of  laboratory gas generators. Precision gas generators are stackable so you can create your ideal GC gas solution Specifically designed and ...

  • Moisture detection for semi gases via EP-IR Spectroscopy

    Introduction EP-IR is a new technology that provides opportunities for uncharted territories One of these territories is moisture analysis What limit of detection for moisture can be achieved? EP-IRGAS Encoded Photometric-Integrated Real-Time Gas Analysis Solution Incorporates an Aspectrics 128 channel ...


    By CIC Photonics

  • Measurements of Atmospheric Concentrations of Reduced Sulphur Compounds in the All Saints Bay Area in Bahia, Brazil

    Atmospheric concentrations of several reduced sulphur compounds (H2S, COS, CH3SH, CH3SCH3, CS2) originating from both natural and anthropogenic sources were measured at a number of locations in the All Saints Bay area and Reconcavo Baiano, Brazil. The volatile reduced sulphur compounds were collected by pre-concentration using cryo-tubes. Analysis of these compounds was carried out at a later ...


    By Springer

  • Online analysis of TOC, TNb, TP, and COD in water

    The control of waste water treatment plants is of special importance - from an ecological as well as economic point of view. The most common water parameters for controlling and optimization are the total organic carbon (TOC), chemical oxygen demand (COD), total nitrogen bound ( ...


    By LAR Process Analysers AG

  • EP-IR: a new technology for IR analysis - introduction to encoded photometric spectrometers and embedded systems

    DISK design 128 or 256 channel standard disk(s) covering the full spectral range based on the fixed grating. Each TRACK integrates the detected spectra over the respective width. Track widths are constant, the resulting integrated bandwidth is f(WL). Max 256 channels per disk (imaging spot size and disk size) Custom track design enables “hard ...


    By CIC Photonics

  • A novel spectrometer design for process and handheld infrared spectral measurements

    Introduction Infrared spectroscopy offers many unique advantages for measurements within an industrial environment. Historically, the technique has been used for a broad range of applications from the composition of gas and liquid mixtures to the analysis of trace components for gas purity analysis. In cases where a well-defined method of analysis is involved, such as the measurement of ...


    By CIC Photonics

  • Establishment of the encoded photometric (ep-ir) spectrometer’s ability to detect the lowest possible level of moisture

    Problem Statement The race for a system that can detect the lowest possible level of moisture is seemingly everlasting. As the race continues we have begun to explore the options of using an EP-IR spectrometer coupled with DID Photonics Integrated IR Source 4 Runner. Experimental Equipment The EP-IR spectrometer is vibration insensitive and runs ...


    By CIC Photonics

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Zero Air and on-site gas generation

    Zero Air is air which is filtered to ensure it only contains less than 0.1 parts per million (PPM) of total hydrocarbons. Essentially a mixture of oxygen and nitrogen, zero air is required for laboratory applications which would be negatively affected by the presence of hydrocarbons or small levels of sulphur or nitrous oxide. These gases can sometimes be present in air due to ...

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