What's the difference between solvent and vehicle?

Solvent


Definition:

  • (a.) Having the power of dissolving; dissolving; as, a solvent fluid.
  • (a.) Able or sufficient to pay all just debts; as, a solvent merchant; the estate is solvent.
  • (n.) A substance (usually liquid) suitable for, or employed in, solution, or in dissolving something; as, water is the appropriate solvent of most salts, alcohol of resins, ether of fats, and mercury or acids of metals, etc.
  • (n.) That which resolves; as, a solvent of mystery.

Example Sentences:

  • (1) We have compared two new methods (a solvent extraction technique and a method involving a disposable, pre-packed reverse phase chromatography cartridge) with the standard method for determining the radiochemical purity of 99Tcm-HMPAO.
  • (2) Twelve strains of the Crimean hemorrhagic fever (CHF)-Congo group of viruses the Bunyaviridae family were investigated with respect to sensitivity to lipid solvents and temperature, pathogenicity for animals, interactions with cell cultures and antigenic relationships.
  • (3) The conformations of each peptide in various solvents were determined by CD and ir spectroscopy in order to relate immunological to structural properties.
  • (4) The kinetics of bimolecular decay of alpha-tocopheroxyl free radicals (T) was studied by ESR mainly in ethanol and heptanol solvents.
  • (5) The purity and configuration of each isomer of the free acid and N-chloroacetylated derivative were ascertained by: (a) paper chromatography in five solvent systems, (b) elemental analysis, (c) Van Slyke nitrous acid determination of alpha-carbonyl carbon, and (d) Van Slyke ninhydrin determination of alpha-carbonyl carbon, and (e) optical rotation.
  • (6) As compared with solvent-treated control, no significant increases were observed in the number of revertant colonies in all tester strains in both systems with and without mammalian metabolic activation (S9 Mix).
  • (7) The results are summarized in Table I, indicating that the ratio of formation of the cis product (2) increases as a solvent becomes more polar.
  • (8) These data are discussed in relationship to the chemical mechanism of GSSG reduction and the identity of the proton-transfer step whose rate is sensitive to solvent isotopic composition.
  • (9) It was readily soluble, however, in nonpolar solvents such as n-hexane and chloroform.
  • (10) Small amounts (approximately 1% of substrate) of two 25(OH)D3 metabolites, which comigrated with 5(E)- and 5(Z)-19-nor-10-keto-25-hydroxyvitamin D3 on two HPLC solvent systems, were synthesized by HL-60 cells, independently from 1,25(OH)2D3 treatment or stage of cell differentiation.
  • (11) As yet the observations demonstrate that workers exposed in their occupation to heavy metals (cadmium, lead, metalic mercury) and organic solvents should be subjected to special control for detection of renal changes.
  • (12) The significance of the present findings on the mutual suppression of metabolism between benzene and toluene is discussed in relation to solvent toxicology and biological monitoring of exposure to the solvents.
  • (13) CZP reduced the incidence of convulsions only after the larger dose, but plain solvent (propylene glycol, ethanol, water) was equally effective.
  • (14) The method involves solvent extraction of the compounds from plasma, derivatization with pentafluoropropionic anhydride and subsequent separation on a 3% OV-17 column.
  • (15) RF values were determined in several solvent systems.
  • (16) From the previously observed results of preferential interactions for salting-out salts with proteins, it was shown that the free energy of the protein is increased by addition of the salts and this unfavorable free energy is smaller for the proteins bound to the columns because of their smaller surface area exposed to solvent; i.e., the bound form of the proteins is thermodynamically more stable.
  • (17) Such an 'inert tube' model may be adequate to describe the inhalation and exhalation kinetics of inert vapours, for example non-polar solvents which have a low water solubility.
  • (18) Results indicate that the rachitogenic factor in rye is not present in the ash portion of the grain, that it can be largely overcome by water extraction and penicillin supplementation, and that an organic solvent extraction has no effect.
  • (19) The possible occupational cause of the disease, as more solvents in the mud have the structure of aromatic hydrocarbons is discussed.
  • (20) Reductions in dissolution rates in a continuous-flow system could best be interpreted by assuming that they reflected changes in the area of the hydrophilic solid exposed to the solvent.

Vehicle


Definition:

  • (n.) That in or on which any person or thing is, or may be, carried, as a coach, carriage, wagon, cart, car, sleigh, bicycle, etc.; a means of conveyance; specifically, a means of conveyance upon land.
  • (n.) That which is used as the instrument of conveyance or communication; as, matter is the vehicle of energy.
  • (n.) A substance in which medicine is taken.
  • (n.) Any liquid with which a pigment is applied, including whatever gum, wax, or glutinous or adhesive substance is combined with it.

Example Sentences:

  • (1) They broke in with a battering ram: an armoured vehicle known as a Bearcat.
  • (2) Six of 7 SAO shock rats treated with U74006F survived for 120 min following reperfusion, while none of 7 SAO shock rats given the vehicle survived for 120 min (P less than .01).
  • (3) It would be "very easy to manipulate and access one of our vehicles", he said.
  • (4) A group of rats raised on D-P++ for 4 weeks were fed D-P- for 7 days after which they received 500 pmol of 1,25-dihydroxyvitamin D3 [1,25(OH)2D3; SUPP] or an equal volume of the vehicle (ETH).
  • (5) Neonatal treatment with a low dose of the estrogen diethylstilbestrol (DES) had no significant effect on adult estrogen binding within the assayed vaginal compartments; however, this treatment caused a 2-fold increase in the level of cytosolic progestin binding in the vaginal FMW over that in vehicle-treated mice.
  • (6) Each subject applied a vehicle cream containing 0.075% capsaicin (Axsain, GalenPharma Inc.) to a 4 cm2 area of skin on one volar forearm and vehicle alone to an identical treatment area on the other forearm, according to a double-blind procedure.
  • (7) Utilizing the bilateral comparison technique in 30 hospitalized patients with chronic stable plaque-type psoriasis vulgaris, we closely monitored the clinical responses to ultraviolet radiation (Westinghouse fluorescent FS40 bulbs, 290--400 nm) and a variety of tar preparations and lubricant vehicles in combination and separately.
  • (8) Controls were injected in the same manner with vehicle and microspheres.
  • (9) Sympathetic nervous system function was blocked in developing male SHR by treating pups from days 0 to 14 with: (1) guanethidine, (2) combined alpha- and beta-receptor antagonists (prazosin and timolol), or (3) vehicle (5% sucrose).
  • (10) The most common seenario was a vehicle-vehicle collision in which seat belts were not used and the decedent or the decedent's driver was at fault.
  • (11) Thus, the lymphoid population containing cell-mediated anti-idiotypic responsiveness served as a vehicle of resistance.
  • (12) Well known buyout firms such as Blackstone and Carlyle appear in the leaked documents, and Luxembourg investment vehicles are commonplace in such investment firms.
  • (13) Future studies will need to carefully evaluate the vehicle used and the strength of topical CsA employed.
  • (14) The Calspan 3-D Computer Simulator of a Motor Vehicle Crash Victim was used to provide estimates of the head and neck response to be expected for the very specific deceleration profiles simulated.
  • (15) "There were around 50 attackers, heavily armed in three vehicles, and they were flying the Shebab flag," Maisori added, speaking from the town, where several buildings including hotels, restaurants, banks and government offices were razed to the ground.
  • (16) Two officers who witnessed the shooting of unarmed 43-year-old Samuel DuBose in Cincinnati will not face criminal charges, despite seemingly corroborating a false claim that DuBose’s vehicle dragged officer Ray Tensing before he was fatally shot.
  • (17) Vehicle administration had no effect on pulmonary function.
  • (18) The best was the oral version of the Symbol Digit Modalities test, which by itself accounted for 70% of the variance of the full-sized-vehicle driving score.
  • (19) II with melatonin instead of 25.9% in the corresponding vehicle controls.
  • (20) Twenty-four h prior to the measurement of 45Ca2+ uptake, the cells were transferred to serum-free medium ([Ca2+], 1.0 mM) containing 1.0 nM 1,25(OH)2D3 or vehicle.