achiral


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a·chi·ral

(ă-kī'răl),
Not chiral; denoting an absence of chirality.
[G. a- priv. + cheir, hand]

achiral

adjective Referring to a molecule or material which is superimposable on its mirror image—i.e., does not display “handedness”

achiral

adjective Referring to a molecule or material which is superimposable on its mirror image, ie does not display 'handedness'. See Chiral.
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References in periodicals archive ?
Current methods use different achiral stationary phases for diastereomer separation, while chiral columns are used for enantiomer separation [14, 15, 18].
Pyrethroid Stereoisomerism: Diastereomeric and Enantiomeric Selectivity in Environmental Matrices--A Review
The method validation was performed on spiked biological samples and found to produce complete separation of the synthetic cathinone enantiomers on achiral capillary GC column in addition to sensitive detection of low concentrations in the [micro]g/L range better than the previous reported methods that use EI and positive CI ionization mass spectrometry.
Simultaneous Quantitative Determination of Synthetic Cathinone Enantiomers in Urine and Plasma Using GC-NCI-MS
In most cases differences in activity in either qualitative or quantitative terms are observed between enantiomers.") Enantiomers would only have the same effect if the target binding site were achiral, and pretty much every molecule in your body of reasonable size is chiral.
Expecting the unexpected
not resolved by the achiral column, only two peaks are observed.
Chemical derivatization for forensic drug analysis by GC- and LC-MS
Since the helical shape itself is chiral, if we can synthesize a polymer with a stable one-handed helical structure from an optically inactive achiral monomer, the polymer must be optically active.
Precision synthesis, structure and function of helical polymers
The others are achiral polarization settings that are sensitive to different vibrational modes.
New insights from sum frequency generation vibrational spectroscopy into the interactions of islet amyloid polypeptides with lipid membranes
Plasma achiral and chiral pharmacokinetic behavior of intravenous oxfendazole coadministered with piperonyl butoxide in sheep.
FASCIOLIASIS IN CATTLE- A REVIEW
Pharmaceutical, food science, lipodomic, metabolomic, environmental and petrochemical laboratories can use SFC/MS to analyze a range of compounds (e.g., chiral, achiral, polar and nonpolar), including closely related compounds in complex matrices.
United States : Agilent Technologies Solutions for Supercritical Fluid Chromatography with Mass Spectrometric Detection Streamline High-Volume Analysis of Complex Compounds
In this unique class of optical materials formed by mixing chiral and achiral nematics (with or without polymer stabilization), the molecules self-assemble into tightly wound defect-spirals that form 3-D cubic or BCC lattices with sub- wavelength lattice constants.
Multiple Time Scales Optical Nonlinearities of Liquid Crystals for Optical-Terahertz-Microwave Applications
This relationship not only enables us to investigate the relationship among the regions and crossings of a reduced alternating achiral knot but also their relationship to the vertices, edges and faces of the corresponding planar graphs..
AN ALGORITHM FOR CONSTRUCTING REDUCED ALTERNATING ACHIRAL KNOTS
Rios, "Achiral liquid chromatography with circular dichroism detection for the determination of carnitine enantiomers in dietary supplements and pharmaceutical formulations" Journal of Pharmaceutical and Biomedical Analysis, vol.
Validation of a stability-indicating RP-HPLC method for determination of L-carnitine in tablets
Preparation of enantiomerically pure [alpha]-amino acid derivatives from aldimines and tributyltin cyanide or achiral aldehydes, amines, and hydrogen cyanide using a chiral zirconium catalyst," Journal of the American Chemical Society, vol.
Catalytic synthesis of [alpha]-aminonitriles using nano copper ferrite (Cu[Fe.sub.2][O.sub.4]) under green conditions

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