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

Fundamental cardiac unit, The fundamental contractile unit is the sarcomere...

The fundamental contractile unit is the sarcomere. Each muscle cell apart from the nucleus, mitochondria and other structures contains parallel fibrils. Sarcomere is a subunit of t

What is the difference between vital and natural amino acid, Q. What is the...

Q. What is the difference between vital and natural amino acids? Essential amino acids are those that the organism is not capable to synthesize and that need to be ingested by

Viriods and prions, Viriods and Prions Viroids        In 1971, T.O...

Viriods and Prions Viroids        In 1971, T.O.Diener reported that the  spinde tuber disease of potato causing gnarling and cracking of the tuber, is caused by multiplica

Pulmonary valvotomy with infundibular resection, Pulmonary Valvotomy with I...

Pulmonary Valvotomy with Infundibular Resection :  Infundibular obstruction in cases of pulmonary valvar stenosis could be primary or secondary. 11' this obstruction is signi

Genetics, GENETICS 1.         The branch genetics started in 1900 after...

GENETICS 1.         The branch genetics started in 1900 after rediscovery of Mendel's work. 2.         Gregor Johann Mendel is called Father of genetics. 3.         The t

Poultry and duck diseases-hydropericardium syndrome, Hydropericardium syndr...

Hydropericardium syndrome Hydropericardium syndrome (HPS), known as Leechi disease, is caused by Avian Adenovirus 4. HPS has been responsible for high mortality ranging from 6

Explain about the saponins, Explain about the Saponins? These are a div...

Explain about the Saponins? These are a diverse group of compounds commonly found in legumes like soybean, lentils, chickpeas, peanuts and alfalfa sprouts. They are also presen

Agro industrial-zinc, Zinc Zinc regulates over a dozen important enzym...

Zinc Zinc regulates over a dozen important enzyme systems involved in metabolism of protein and carbohydrates. Zinc is also required for maintaining responsiveness of the immu

Explain about post-operative pain, Post-operative pain  There is some d...

Post-operative pain  There is some discomfort for about 24-48 hours. Persistent pain for a longer duration, with swelling, may indicate possible infection around the implant an

Full - thickness flap with a c-shaped excisional incision, Full - thickness...

Full - thickness flap with a c-shaped excisional incision In case where there is adequate soft tissue, both in terms of papillary height and labial bulk, the excision of the ep

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