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Absorbance Detector Product List

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What is a UV-Vis absorbance detector? Free explanatory materials are currently available.

What is a UV-Vis absorbance detector? Free explanatory materials are currently available.

Thorough Explanation of UV-Visible Absorbance Detectors: A Clear and Detailed Explanation of the Differences Between VWD and DAD! Free Basic Knowledge Materials Available!

Many organic compounds analyzed by HPLC have absorption in the ultraviolet-visible region. Therefore, ultraviolet-visible absorbance detectors are the most widely used in HPLC. A deuterium discharge lamp (D2 lamp) is used as the light source, but a tungsten lamp may also be used in conjunction to measure absorption in the visible region with high sensitivity. This document provides a clear summary of the basics of separation in liquid chromatography (LC), detectors, and principles. It is recommended for those who are learning HPLC for the first time, those who want to review from the basics, and those looking for materials useful for in-house training. [Contents (partial)] ■ Introduction ■ HPLC Equipment ■ Separation in HPLC ■ Detection *For more details, please download the PDF or feel free to contact us.

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What is VWD? Free explanatory materials are being offered.

What is VWD? Free explanatory materials are being offered.

Thorough Explanation of One of the UV-Visible Absorbance Detectors, VWD: A Clear Comparison with DAD! Free Basic Knowledge Materials Available!

VWD spectrally analyzes the light from the light source using a grating, converts it into monochromatic light, and then measures the absorbance in a flow cell. Since detection is performed at a single wavelength, it is possible to switch wavelengths using a time program for simultaneous analysis of multiple components when the maximum absorption of each analyte differs. This document provides a clear summary of the fundamentals of liquid chromatography (LC), detectors, and principles. It is recommended for those who are newly learning HPLC, those who want to review from the basics, and those looking for materials useful for in-house training. [Contents (partial)] ■ Introduction ■ HPLC Equipment ■ Separation in HPLC ■ Detection *For more details, please download the PDF or feel free to contact us.

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What is DAD? Free explanatory materials are currently being offered.

What is DAD? Free explanatory materials are currently being offered.

A thorough explanation of one of the UV-visible absorbance detectors, DAD. We will also clearly explain the differences with VWD! Basic knowledge materials are available for free.

DAD, unlike VWD, irradiates the cell with light from the light source without spectrally analyzing it. The light that passes through the cell is spectrally analyzed and detected by a device with an array of photodiodes (photodiode array). It is possible to record the UV-Vis spectrum of the eluent from the column. Therefore, simultaneous multi-wavelength detection, peak purity testing, and comparison with the UV-Vis spectrum of standard substances can be performed, making the peak identification capability superior to that of VWD. This document provides a clear summary of the fundamentals of separation in liquid chromatography (LC), detectors, and principles. It is recommended for those who are newly learning HPLC, those who want to review from the basics, and those looking for materials useful for in-house training. [Contents (partial)] ■ Introduction ■ HPLC Equipment ■ Separation in HPLC ■ Detection *For more details, please download the PDF or feel free to contact us.

  • Analytical Equipment and Devices

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