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Axetris‘ EMIRS broadband technology made for liquid measurements

Axetris‘ EMIRS broadband technology made for liquid measurements
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Axetris‘ EMIRS broadband technology made for liquid measurements - 1

Infrared Sources Application Note: Food Purity Axetris‘ EMIRS broadband technology made for liquid measurements Food purity and quality to ensure the public's health The continued urbanization has resulted in a decentralization of agricultural goods being produced. This has led to longer delivery chains and thus increased the requirements for food quality control. With Axetris Infrared Sources, food producers can now keep control over the quality of their products and produce in a simple and affordable way. To ensure that every single delivery is flawless, food producers must review their goods as early as possible in the production process. This poses a challenge especially for emerging countries, as the analysis of goods in a professional laboratory is hardly affordable and suitable for everyday use and is therefore not an option for farmers and producers. An affordable and portable solution Mid-Infrared Spectroscopy based on Transmission Spectroscopy or Attenuated Total Reflectance (ATR) technique offers an affordable and user-friendly solution. These straightforward techniques enable us to design tools, which are compact, robust in handling and provide reliable measurements. Furthermore, sample preparation, consumables or reagents are not required, and a measurement is conducted within seconds. Thus, much broader and earlier control with minimal running costs is possible, reducing risks in the value chain and ultimately ensure higher food quality. How does it work? Mid-Infrared Spectroscopy is a widely accepted sample characterization and quantification technique that's used regardless of the sample form (gas, liquid, paste-like or solid). The technique is used extensively in applications requiring qualitative or quantitative analysis, providing information regarding molecules and The measurement method is non-destructive and doesn't require sample preparation or reagents. Typical measurement is conducted within a minute and can be done on-site. their bondings. Such information can be used to calculate concentrations or to compare chemical fingerprints of samples. The infrared spectrum of a sample is recorded by letting a beam of infrared light interact with the sample. When the frequency of the IR is the same as the vibrational frequency of a bond, absorption occurs. Examination of the light gathered at the detector reveals how much energy was absorbed at each frequency. Advantages of Axetris‘ Infrared Source for MIR Spectroscopy 99 True black body radiation (2 to 14 μm) 99 High modulation depth over a wide frequency range for time resolved measurements 99 Optimized reflector for an easy integration with maximum efficiency 99 Low power consumption allows the design of a cost-optimized electronics

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Axetris‘ EMIRS broadband technology made for liquid measurements - 2

Transmission Spectroscopy: Infrared Source EMIRS200 Dosing system with pump Broadband window Thin spacer between the windows IR Band pass filter Pyroelectric (line array) detector HMI (measurement and analysis) In transmission spectroscopy light travels through a medium to detector. The radiation is absorbed depending on the media and the thickness of the sample cell. Depending on the chemical composition of the sample, the spectral fingerprint will change accordingly. The sample can be brought to the cell by bypass stream or manually. In cost-sensitive applications multi-channel, line...

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Axetris‘ EMIRS broadband technology made for liquid measurements - 3

Ammonium sulfate is used in milk adulteration to mask the concentration change after water is added. The limitations of a low-price (a fraction of a standard spectrometer such as FTIR) spectrometer setup was tested by spiking UHT milk with ammonium sulfate. The setup consisted of two EMIRS200 IR sources built into a Pyreos PY0727 ATR spectroscopy evaluation kit. The IR energy from the light source was passed through a multi-reflection zinc selenide ATR crystal and received by a Pyreos PY0728 128 pixel linear array. The infrared array sensor had an integrated linearly variable filter (LVF)...

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Axetris‘ EMIRS broadband technology made for liquid measurements - 4

Conclusion Axetris Infrared Sources provide excellent emission characteristics in the entire Mid-IR range. Therefore, they offer an ideal component for process condition monitoring, detecting contaminations/adulterants and analyzing the purity of high quality products. The technology builds the basis for competitive and affordable analyzing solutions that will find their way into various existing and new applications. The ideal tuning of all components, especially in reference to the size of the IR detector, is certainly decisive. This can be matched by the curvature of reflective surfaces,...

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