Define about the photometry - colorimetry, Biology

Assignment Help:

Define about the Photometry - colorimetry?

Photometry is the measurement of the luminous intensity light or the amount of luminous light falling on a surface from such a source. The term photometric measurement was defined originally as the process used to measure light intensity independent of wavelength. Modern instruments, however, isolate a narrow wavelength range of the spectrum for measurements.

The instruments that use filters for this purpose are referred to as filter photometers, whereas, those that use prisms or gratings are called spectrophotometers. A simple spectrophotometer called a colorimeter is used to measure the amount of light a sample absorbs. The primary analytical utility of filter photometry or spectrophotometry is the isolation and use of discrete portions of the spectrum for purposes of measurement.


Related Discussions:- Define about the photometry - colorimetry

How are gametes formed in the pteridophyte life cycle, Q. How are gametes f...

Q. How are gametes formed in the pteridophyte life cycle, by mitosis or meiosis? What is the type of meiosis that occurs in pteridophytes? In pteridophytes gametes are made by

What phrase best describes oxidation- reduction reaction, What phrase best ...

What phrase best describes oxidation- reduction reaction? A. phosphoryrylation energezing endergounic reactions b. transferring of electrons from one molecule to another c. shar

Reproduction, what are the methods of seed formation

what are the methods of seed formation

Show nutrition guidelines for prevention of heart disease, Q. Show Nutritio...

Q. Show Nutrition guidelines for prevention of heart disease? Nutrition guidelines for prevention of heart disease as suggested by WHO are highlighted. Details regardin

Preventive measures of rheumatic fever, Preventive Measure Primary p...

Preventive Measure Primary prevention Early detection and treatment of group "A" b-hemolytic streptococcal pharyngitis. Penicillin is the commonly prescribed drug. Educ

Phylum Coelenterata, what is its description and 3 most common example

what is its description and 3 most common example

Explain water holding or hydration capacity and viscosity, Explain Water Ho...

Explain Water Holding or Hydration Capacity (WHC) and Viscosity? WHC refers to the 'ability of fibre to bind water', just as dry sponge does when soaked in water. WHC of the fi

Write short note on cholesterol, Cholesterol, from stereos (solid) and the...

Cholesterol, from stereos (solid) and the Greek chole- (bile) followed by the chemical suffix -ol for an alcohol is an organic chemical substance classified as a waxy steroid of fa

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd