optical rotation

(redirected from Optical purity)
Also found in: Dictionary, Encyclopedia.
Related to Optical purity: optical rotation

rotation

(ro-ta'shon) [L. rotatio, a turning]
The process of turning on an axis.

external rotation

Restitution (3). See: Cardinal Movements at Birth - step 7

fetal rotation

Twisting of the fetal head as it follows the curves of the birth canal downward.

injection site rotation

Administration of parenteral medications such as insulin into a different part of the body each day to avoid local tissue trauma, atrophy, or lipodystrophies.

Patient care

Subcutaneous injections of insulin are typically rotated around the abdomen from the right upper quadrant, to the midepigastrium, left upper quadrant, left lower quadrant, hypogastrium, and right lower quadrant before returning to the right upper quadrant. A similar technique is used with low-molecular-weight heparins, colony-stimulating factors, and other drugs.

optical rotation

See: optical activity

tooth rotation

The repositioning of a tooth by turning it on its long axis to a more normal occlusal position.

optical rotation (pˑ·t·kl rō·tāˑ·shn),

n the angle by which plane-polarized light rotates when it passes through a substance that exhibits optical activity. This is a distinguishable quality of a particular compound. See also optical activity.
References in periodicals archive ?
Those readers who would like a free copy of the refractometric procedure used by USP (Sigma-Tau authored the monograph for USP) for the determination of optical purity (specific rotation) may obtain one by contacting the author at the address below.
The lower the racemization degree, the higher is the optical purity (OP), which is consistent with the results of the OP (listed in Table 1).
In addition, Zeiss Certified True Sight lenses will be available as an option throughout the collection, giving consumers all of the benefits of True Sight plus the ultimate guarantee of optical purity that only Zeiss can offer.
ChiroKit-TE consists of two components, ChiroScreen(TM)-TE for quickly identifying the right catalyst for an acylation reaction and ChiroTool(TM) for optimizing the reaction for yield and optical purity.
Additionally, due to the growing complexity of potential drugs and demand for optical purity, the industry is likely to increasingly adopt biocatalysts or enzymes.
ChiroKit-EH was launched in early 1995, and consists of two components, ChiroScreen(TM)-EH for identifying the right catalyst to perform an ester hydrolysis reaction and ChiroTool(TM) for optimizing the reaction for yield and optical purity.
Differentiated by its market leading optical purity and low noise figure, PowerSweep 2000(TM) is ideally suited for externally modulated transmission from ultra long haul to metro network scenarios.
The resin obtained is of a very high optical purity and is used in such industries as automotive, communication systems (CD, DVD) and information technology.

Full browser ?