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1. The purpose of correlation chart are to measure or relate two variables and allow us to make a prediction about one variable based on what we know about another variable. For example, a correlation between the 2 known sample.
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What is the source of FTIR instrument?
Don't know, but go on Wikipedia, it will tell you.
Why use KBr in FTIR?
The crystal has no visible peaks in the infrared spectrum making it transparent in ftir.
What is the principle of FTIR?
The principle of FTIR is based on the fact that bonds and groups of bonds vibrate at characteristic frequencies. A molecule that is exposed to infrared rays absorbs infrared energy at frequencies which are characteristic to that molecule. In a molecule, the differences of charges in the electric fields of its atoms produce the dipole moment of the molecule. Molecules with a dipole moment allow infrared photons to interact with the molecule causing excitation to higher vibrational states. Diatomic molecules do not have a dipole moment since the electric fields of their atoms are equal. During FTIR analysis, a spot on the specimen is subjected to a modulated IR beam. The specimen's transmittance and reflectance of the infrared rays at different frequencies is translated into an IR absorption plot consisting of reverse peaks. The resulting FTIR spectral pattern is then analyzed and matched with known signatures of identified materials in the FTIR library.
What is the correlation between nutrition in insectivorous plants plants and their habitat?
what is the correlation between nutrition in insectivorous plants and their habitat
What is a Pearson correlation and an example of it?
A Pearson Correlation is similar (same as) to Pearson R which are found between Y and X variables.
What is the purpose of a correlation analysis?
The purpose of correlation analysis is to check the association between two items. This can be useful in determining accuracy.
What is the purpose of using correlation analysis How might correlation analysis be used in business decisions or in strategy formulation and implementation?
The correlation analysis is use in research to measure and interpret the strength of a logistic relationship between variables.
What is a purpose of a scatter graph?
By finding a correlation trend by means of line of best fit.
What purpose do charts and graphs serve?
they're just a way to show information
What is the source of FTIR instrument?
Don't know, but go on Wikipedia, it will tell you.
Range resolution of FTIR?
I always use 400 - 4000cm-1.
Why use KBr in FTIR?
The crystal has no visible peaks in the infrared spectrum making it transparent in ftir.
Where is a carbonyl group detected by FTIR?
At around 1700-1800 [1/cm]
Why NaCl is not used in FTIR?
It is used but not after wavelengths higher than 15 micrometres.
What does Cronbach alpha mean in statistics?
Cronbach's alpha refers to a coefficient of reliability. This can be written as a purpose of the number of test items and its average inter-correlation. Cronbach's alpha commonly increases as the correlation of the items increase.
Auto correlation and cross correlation?
Auto correlation is the correlation of one signal with itself. Cross correlation is the correlation of one signal with a different signal.
What are the advantages of FTIR?
FTIR instruments have distinct advantages over dispersive spectrometers: 1. Better speed and sensitivity. 2. Internal laser reference. The use of a helium neon laser as the internal reference in many FTIR systems provides an automatic calibration. 3. Increased optical throughput. 4. Simpler mechanical design. 5. Elimination of stray light and emission contributions.
