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

Cost-benefit relationship regarding sewage treatment, Q. What is the cost-b...

Q. What is the cost-benefit relationship regarding sewage treatment as a strategy to fight water pollution? To treat sewage is greatly cheaper for society. The non-treated sewa

Illustrate hypertrophic cardiomyopathy?, Q. Illustrate Hypertrophic cardiom...

Q. Illustrate Hypertrophic cardiomyopathy? It is a genetic disorder due to mutations in the gene that encodes for β-Cardiac myosin heavy chain (Localised to chromosome 14). It

Cytokinesis, Cytokinesis It is defined  as the division or cleavage  of...

Cytokinesis It is defined  as the division or cleavage  of cytoplasmic  part   of the cells  into  two  daughter  cells. It is first  indicated   during  late  anaphase  by app

Examine the cysticerus larva under the microscope, Examine the cysticerus l...

Examine the cysticerus larva under the microscope? Examine the cysticerus larva under the microscope and note the following: i)  Bladder worm consists of a single layered, l

Explain disease motion sickness, Motion Sickness  The pathogenesis of m...

Motion Sickness  The pathogenesis of motion sickness is poorly under- stood. The prescription cholinergic blocker scopolamine in a patch or oral formulation can decrease sympto

Expression clone, Expression clone  is a clone (plasmid in the bacteria, or...

Expression clone  is a clone (plasmid in the bacteria, or might be a lambda phage in bacteria) which is designed to produce the protein from the DNA insert. Mammalian genes do not

Explain the functional properties of starches, Functional Properties of Sta...

Functional Properties of Starches Starch is a major source of energy (calories) in grains and tubers, and foods made from them. However, when starch is added to products as an

Name the foods to avoid in soft diet, Name the Foods to avoid  in soft die...

Name the Foods to avoid  in soft diet include: Fried foods and nuts, rich pastries and desserts, Raw  vegetables, Heavily spiced foods, Gas-forming vegetables, S

What are the major features of fishes, What are the major features of fishe...

What are the major features of fishes associated to the habitat where they live? Fishes are all aquatic animals and therefore they have a hydrodynamic elongated body appropriat

Explain about the importance of vitamin e in human body, Explain about the ...

Explain about the Importance of Vitamin E in Human Body? Vitamin E is the generic term for tocopherols and tocopherols that have a Phenolic functional group on a chromane ring

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