Is there any method to measure the emisson spectrum of ta Mercury vapor lamp ?

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How can we get XRD peaks for metal nanoparticles like Au of size 3-4 nm and supported on an oxide support with around 0.5 weight percentage loading ?

XRD, loading, peak, crystalinity

06 July 2017 3,102 11 View

Wha tis the difference between Debye-Waller factor and Debye Waller Term in EXAFS measurement ?

EXAFS, XANES, XAFS

07 August 2016 3,583 7 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Is it possible to have two luminescence bands of the same peak position but with different intensities in single spectrum??

Hi! If it is possible to have two luminescence bands of the same peak position in a spectrum, what is the reason behind formation of two separate bands instead of one? This phenomenon is related...

26 February 2021 4,963 5 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Ruslan Magomedtakhirovich Gadirov

If this is a one-time measurement, then it is better to find a laboratory with radiometric equipment. If you plan periodically carry out such studies, then you need a calibration lamp with known spectral radiation in UV/Vis/NIR. For example, Avantes AvaLight-DH-BAL-CAL. You need calibrate the spectrometer with this lamp and perform measurements. If you need full luminous flux, then you need integrating sphere and a calibrated light source in couple with the spectrometer.

Maryam Shirmohammad

If you have access to a spectrometer, measure the emission spectrum to see if there is any peaks in the range your are looking for. regarding percentage measurement of UV or VIS light in the emission spectrum, the easiest thing is to area under each peak and compare that to the total area of the spectrum.

Things to note: 1- your spectrograph must be wavelength and intensity calibrated beforehand.

Bikash Sharma

Thanks Dr. Gadirov and Dr Maryam.