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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.
What is the connection between tissue fluid, plasma and lymph? Tissue fluid is plasma (minus its proteins) which has leaked out of the capillaries. Lymph is tissue fluid which
Q. Carbohydrate requirement during congestive cardiac failure? While the quantity of carbohydrate remains almost the same as per the RDI i. e, 60% of the total energy, the qual
The earth's environment has been composed in a way which sustains life on this planet. Through on process, the different constituents of the atmosphere are consumed and through the
Plants are the source of a large variety of biochemicals which are metabolites of both primary and secondary metabolism. But secondary metabolites are of much greater interest s
Define Prevalence of Weight Management? WHO (1998) estimates that in developing countries about 245 million adults are moderately underweight and 93 million severely underweigh
You are working on a protocol in lab that requires 10ml of a 5% saline solution for a particular step. All you have in your lab is a 20% saline stock solution. How can you dilute t
what is endosperm haustorium
Explain Glycerol esters of fatty acids Glycerol esters of fatty acids, which make up to 99% of the lipids of plant and animal origin have been traditionally called fats and oi
Prevention and Control of Shigella food borne infection The control of Shigella food borne infection is similar to that of salmonellae; avoiding contamination of foods by ani
Mention causes of implant failure due to improper implant selection. Implant selection errors : a) Improper implant type in improper bone type. b) Improper length, width
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