What's the difference between amphiprotic and amphoteric?
Amphiprotic
Definition:
Example Sentences:
Amphoteric
Definition:
(a.) Partly one and partly the other; neither acid nor alkaline; neutral.
Example Sentences:
(1) A series of comparative experiments were undertaken by us in order to study the influence of anionic, nonionic and amphoteric detergents on the production of ascitic fluid from macerates of Yoshida sarcoma and fibrosarcoma BUSP.
(2) Steroid sulfatase of human placenta has been solubilized by treatment of the microsomal fraction with an amphoteric surface active agent, Miranol H2M and ultrasound.
(3) Feldamycin, C17H25N7O5, is an amphoteric compound which inhibits a variety of bacteria in vitro but is found to be ineffective in the treatment of experimental bacterial infections in mice.
(4) Most of the problems connected with the use of the Immobiline chemicals (a set of six, non-amphoteric, acrylamido buffers having pK values in the pH 3.5-9.5 interval) can be attributed to the alkaline species (with pK values 6.2, 7.0, 8.5 and 9.3).
(5) Both amphoteric and quaternary ammonium adapted organisms showed changes in their fatty acid profiles consistent with outer membrane modification but the changes were different in each case.
(6) A protein liquid membrane composed of coacervated alpha-elastin, a chemical fragmentation product of the biological elastic fiber protein, functioned as an amphoteric liquid ion-exchange membrane.
(7) In mixed-bed, carrier ampholyte-Immobiline gels, a primary, insolubilized pH gradient is admixed with a secondary, soluble pH gradient generated by amphoteric buffers.
(8) The antibiotic was purified by a combination of ion-exchange and adsorption chromatography based on its amphoteric water-soluble characteristics.
(9) The chemical analysis of 3-methoxytyramine, normetanephrine, and metanephrine in tissues, blood, and cerebrospinal fluid is complicated by the low levels in which they occur and the amphoteric nature of the functional groups, which hampers their isolation from aqueous media.
(10) Capacity-limited ester hydrolysis in the liver was the main metabolic pathway, yielding a single amphoteric metabolite.
(11) DHEC exercises a vasoregulating amphoteric action which depends on the initial tonus: it is hypotensive in hypertensive and normotensive animals but it is hypertensive in hypotensive animals.
(12) The mass spectrometric study of these components by classical ionization techniques such as electron impact, chemical ionization or field desorption require a prior chemical derivatization because of their amphoteric properties, their low volatility and low thermostability.
(13) These two antibiotics are amphoteric in nature, soluble in particular solvents such as dimethylsulfoxide, dimethylformamide and alkaline water, and show typical infrared absorptions of peptide.
(14) Cationogenic, anionogenic, non-ionogenic and amphoteric tensides were more or less effective in inactivating horseradish peroxidase.
(15) Amphoteric, isoelectric agarose membranes, as devised by Martin and Hampson [Martin, A.J.P.
(16) The results have been explained in terms of the ion exchange theory by postulating that the membrane has fixed amphoteric groups.
(17) This new detection method is unique concerning direct measurements of charge densities and isoelectric points of amphoteric macromolecules adsorbed in the membrane.
(18) The radioactivity was separated by ion-exchange chromatography into two major fractions: one acidic, the other amphoteric.
(19) Adaptation to both biocides resulted in cross resistance to biguanides but whereas quaternary adapted cells were resistant to a range of quaternary ammonium compounds, the amphoteric adapted organisms were not.
(20) Minimum inhibitory concentrations and the effective period for cidal concentrations of an amphoteric surfactant mixture (C31G) were determined on 13 microorganisms (common bacteria, strains ATCC, and fungi) by microtiter dilution procedure.