What's the difference between phosphonic and phosphoric?
Phosphonic
Definition:
(a.) Pertaining to, or designating, certain derivatives of phosphorous acid containing a hydrocarbon radical, and analogous to the sulphonic acid.
Example Sentences:
(1) Alkaline treatment of 4, 5, 18, and 19 gave the corresponding adenosine 5'-(hydroxycarbonyl)phosphonate (14), guanosine 5'-(hydroxycarbonyl) phosphonate (15), 2'-deoxyadenosine 5'-(hydroxycarbonyl)phosphonate (20), and 2'-deoxyguanosine 5'-(hydroxycarbonyl) phosphonate (21).
(2) Some recently discovered naturally-occurring phosphonates are described, together with some synthetic phosphonate analogues of naturally-occurring phosphates.
(3) The (beta-chloro-, (beta, beta-dichloro-, and (beta, beta, beta-trichloro-alpha-aminoethyl)phosphonic acids have been synthesized and their inhibitory properties on the alanine racemases [EC 5.1.1.1] and the D-Ala:D-Ala ligases [EC 6.3.2.4] from Pseudomonas aeruginosa and Streptococcus faecalis have been evaluated.
(4) Five phosphonic-acid-containing reagents were synthesized and coupled to linearized pBR322 plasmid DNA by different condensation methods.
(5) An isosteric analog of dihydroxyacetone phosphate, 4-hydroxy-3-oxobutyl-1-phosphonate, was a much stronger competitive inhibitor of the microsomal than the mitochondrial enzyme.
(6) [3H]3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid (CPP) binding was inhibited by L-Glu but not by minaprine.
(7) The gamma-phosphonates were somewhat less active than either the gamma-sulfonates or the parent drugs as inhibitors of murine dihydrofolate reductase.
(8) The promising activities of these new platinum-linked phosphonic acids in autochthonous rat colorectal carcinoma and in human colorectal cancer cell lines warrant further investigations of compounds of this class to elucidate their role in the treatment of colorectal cancer.
(9) This effect was stereospecific and blocked by GABAB receptor antagonists like CGP 35 348 (3-aminopropyl-diethoxymethyl-phosphonic acid) and phaclofen.
(10) A technique has been worked out for determining amino alkyl phosphonic acids in ruminal fluid by using methods of hydrolysis, partition of the phosphonic acid on a cation exchange column and ashing of the eluate.
(11) 5 Schild analysis of the antagonism of NMDA responses in the rat cortical slice by DL-3(2- carboxypiperazin-4-yl)propyl-1-phosphonate, D- and DL-2-amino-5-phosphonovalerate, D- and DL-2- amino- 7-phosphonoheptanoate, D-beta-aspartylaminomethylphosphonate, D-gamma-glutamylglycine and D-Ofaminoadipate (D-AA) indicated a competitive interaction with respective pA2 values of 6.17, 5.62, 5.24, 5.28, 5.20, 5.00, 4.43 and 3.97.
(12) When 1 was treated with anhydrous acid for 16 h both the H-phosphonate diester and the t-BDMSi group remained intact.
(13) Class III were Gd complexes of weak chelates containing no phosphonate.
(14) The solid phase synthesis of oligoribonucleotides using the H-phosphonate approach and the 1-[(2-chloro-4-methyl)phenyl]-4-methoxypiperidin-4-yl (Ctmp) and dimethoxytrityl (DMTr) groups, respectively, for the protection of the 2'- and 5'-hydroxy functions is described.
(15) Organic phosphonates have been introduced in dentifrices to reduce the formation of dental calculus.
(16) Anatomic localization of spine lesions, shown by Tc-99m phosphonate SPECT, to facet joint or pedicle is often difficult due to limitations in resolution.
(17) The effects of oral doses of N,N,N',N'-ethylenediaminetetramethylene phosphonic acid (EDITEMPA) on cortical bone remodeling and histology of adult dogs were determined.
(18) The preventive effect of alpha-hydroxydimethyl-gamma-aminopropylidene bis-phosphonate was investigated histomorphometrically.
(19) The competitive NMDA antagonist 3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid (CPP) substituted for pentobarbital at doses that did not disrupt rates of responding.
(20) It is believed that the phosphonate ester configuration of EPN and Leptophos has a specific mode of toxic action which is mainly located at the central nervous system.
Phosphoric
Definition:
(a.) Of or pertaining to phosphorus; resembling, or containing, from us; specifically, designating those compounds in which phosphorus has a higher valence as contrasted with the phosphorous compounds.
(a.) Phosphorescent.
Example Sentences:
(1) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
(2) This demineralization was similar to enamel acid etched with 50% phosphoric acid for 2 mn.
(3) Chemical analyses of the radioactive species in the incubation medium showed that a considerable portion of the radiolabeled sugar nucleotide had broken down to cytidine, phosphoric acid, and sialic acid.
(4) There were no temperature induced changes in the other phosphorous components seen in the spectra with exception of a decrease in ATP for higher temperatures.
(5) Such aspects as the physics of the stimulable phosphor detector are dealt with, and image acquisition, processing, and hard-copy output.
(6) Multiple-inhibitor experiments of pyruvate decarboxylase show that inorganic phosphate and n-decyl ester of phosphoric acid are mutually exclusive.
(7) One group of 6 cats was fed a basal, naturally acidifying diet without added acidifiers, and another group of 6 cats was fed 1.7% dietary phosphoric acid.
(8) McArdle's disease was also detected by phosphor nuclear resonance in the two male children.
(9) The IP phosphor retains a latent image of the energy pattern to which it was exposed.
(10) After spraying the plates with phosphoric acid and heating, the amount of carbon from the charred compounds is measured densitometrically.
(11) The use of photo-simulated phosphor plates and scanned equalization radiographic systems for chest imaging are discussed.
(12) The six patients had normal hemoglobin levels and the serum concentration of the following urinary constituents was normal in most of the patients: albumin, carotene, 25-hydroxycalciferol, parathyroid hormone, calcitonin, calcium, phosphorous, osteogenous alkaline phosphatase, cholesterol, triglycerides, and serum lipoproteins.
(13) Hydrochloric and phosphoric acids were efficient between 20 and 50% concentrations.
(14) The sensitivity of storage phosphor imaging plates (SPIP) at megavolt photon energies (60Co, 6-, 10-, and 18-MV radiotherapy beams) is studied both experimentally and by Monte Carlo radiation transport calculations.
(15) The activated CO2 intermediate formed in the reaction catalyzed by glutamine-dependent carbamyl phosphate synthetase was identified as carbonic-phosphoric anhydride through the use of two independent procedures.
(16) The influence of sympathectomy of the ear artery in rabbits on the activity of a number of redox coenzymes inthe vascular wall (lactic, glucose-6-phosphoric, isocitrate, and succinic dehydrogenases: LDH, G-6-PDHm isoCDH, and SDH, respectively) was studied by the quantitative histochemical method.
(17) To assess the effects of left ventricular chamber volume on the mechanism of changes in left ventricular developed pressure we performed phosphorous-31 nuclear magnetic resonance spectroscopy, hydrogen-1 nuclear magnetic resonance spectroscopy with a shift reagent, two-dimensional echocardiography, atomic absorption spectrophotometry, microsphere analysis, and surface fluorometry on isovolumic isolated perfused rat hearts with incremental intraventricular balloon volumes, while left ventricular pressure was concurrently monitored.
(18) The subtle radiolucent polyethylene component was identified in all patients; adequate visualization in some cases may necessitate imaging with additional methods such as magnification, phosphor plate, and soft-tissue radiographic techniques; conventional tomography; and arthrography.
(19) Since it is well known that chronic alcohol consumption leads to hypophosphatemia and hypomagnesemia, we designed experiments to determine if controlled depletion of either phosphorous or magnesium (Mg2+) lead, in themselves, to cardiovascular disturbances and what effects these mineral depletions exert on myocardial cellular bioenergetics.
(20) A digital radiography system based on reusable, photostimulable phosphor technology was evaluated in approximately 3,500 portable chest radiographs of patients in an intensive care unit.