English Posts

Spectrophotometric Techniques

Abstract: in this post we describe the application of the SMA Thunder Optics spectrometer and the Spectragryph software in spectrophotometry measurements. We will apply spectrophotometric techniques to measure the concentration of a solute by measuring absorbance and fluorescence. We will also apply spectrophotometry to the study of the kinetics of a chemical reaction.

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Reflectance Spectroscopy & Colorimetry

Abstract: in this post we describe the application of the Thunder Optics SMA Spectrometer and the Spectragryph software in reflectance measurements. We will apply the reflectance spectroscopy technique to the study of some materials.

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Fluorescence Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in fluorescence measurements. We will apply the fluorescence spectroscopy technique to the study of some chemical compounds of particular importance and interest.

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Absorption Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in absorbance measurements. We will apply the absorption spectroscopy technique to the study of some liquid solutions of colored compounds.

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Transmission Spectroscopy

Abstract: in this post we describe the application of the Thunder Optics spectrometer and the Spectragryph software in transmittance measurements. We will apply the technique of transmission spectroscopy to the study of some optical filters.

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Thunder Optics SMA Spectrometer & Spectragryph

Abstract: in this post we describe the Thunder Optics spectrometer used with the Spectrgrayph software. We plan to configure and calibrate the instrument and use it for the acquisition and study of the spectra of some light sources. For the measurements we will also use some accessories such as optical fibers, collimators and calibration light sources.

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Electron Spin Resonance Spectroscopy

Abstract: in this post we are going to describe the measurements made with our "home-built" ESR apparatus on some paramagnetic organic compounds (in particular stable free radicals) known for their strong response to electronic spin resonance.

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Electron Spin Resonance – SW Part

Abstract: In the previous posts (Electron Spin Resonance , Electron Spin Resonance – HW Part) we have described the general principles and the hardware part of our ESR DIY apparatus. In this post we complete the description of the device focusing on the management firmware part and on the data recording software part.

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Electron Spin Resonance

Abstract: In this post we will describe an apparatus for demonstrating the phenomenon of electron spin resonance (also called paramagnetic electronic resonance).

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Hall Effect & Teslameter

Abstract: one of the most interesting and useful phenomena in the field of materials physics is the Hall effect. It is an effect that arises from the interaction between moving charges and magnetic fields. The Hall effect allows to obtain valuable information on the charge carriers present in the material. In the technological field it is widely used for the measurement of magnetic fields.

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Light Diffraction and Babinet Principle

Abstract: in this post we propose two applications of diffraction theory for the measurement of small objects: the thickness of a hair and the diameter of a red blood cell. For these measurements, Babinet’s principle is applied to the diffraction pattern generated by an obstacle. The Babinet Principle In physics, …

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Flame Test

Abstract : In this post we intend to explore the flame test analysis technique, revisited through the use of our grating spectrometer which should allow us to highlight the emission lines of the various elements being analyzed. Introduction In chemistry, the flame test is a simple qualitative analysis technique to …

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Ru(bpy)3 : an “intriguing” molecule

Abstract : In this post we use the apparatuses for the study of fluorescence (spectrum and lifetime), apparatuses that we have described in previous posts, for the analysis of the photophysical properties of a particular molecule: Ru(bpy)3. It is an organo-metallic molecule based on ruthenium, this compound has interesting luminescence …

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Fluorescence Lifetime Measures

Abstract : in this post we describe the measurements of the fluorescence decay time in some compounds that have particularly long decay times, therefore suitable for being measured with our experimental setup. Introduction With the system described in the post Fluorescence Lifetime Apparatus we carried out a series of measurements …

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