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Turbidimetry (the name being derived from turbidity) is the process of measuring the loss of intensity of transmitted light due to the scattering effect of particles suspended in it. Light is passed through a filter creating a light of known wavelength which is then passed through a cuvette containing a solution.
Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air.The measurement of turbidity is a key test of both water clarity and water quality.
An example of such testing is antibiotic susceptibility testing by measurement of minimum inhibitory concentration which is routinely used in medical microbiology and research. If a suspension used is too heavy or too dilute, an erroneous result (either falsely resistant or falsely susceptible) for any given antimicrobial agent could occur.
Turbidimetric inhibition immuno assay (TINIA) is a type of immunoassay that uses turbidimetry as the measurement principle and is used for many commercial immunoassays, e.g. measurement of HbA1c%, [1] Digoxin etc. in whole blood sample in several commercial assays employ this principle.
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Study guides for math and science often present problems (as in problem-based learning) and will offer techniques of resolution. Study guide from Permacharts. Academic support centers in schools often develop study guides for their students, as do for-profit companies and individual students and professors.
Guides in the form of a hollow tube with a highly reflective inner surface have also been used as light pipes for illumination applications. The inner surfaces may be polished metal, or may be covered with a multilayer film that guides light by Bragg reflection (this is a special case of a photonic-crystal fiber).
In microbiology, the minimum inhibitory concentration (MIC) is the lowest concentration of a chemical, usually a drug, which prevents visible in vitro growth of bacteria or fungi.