What's the difference between alumina and cordierite?

Alumina


Definition:

  • (n.) One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3.

Example Sentences:

  • (1) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
  • (2) The free nucleoside IV was obtained by removal of blocking groups by sodium methoxide catalyzed deacylation, deionization under reducing atmosphere, and chromatography on neutral alumina.
  • (3) Breath was passed through a cooled loop of alumina to adsorb, concentrate, and release, on heating, pentane.
  • (4) After catecholamines are adsorbed on alumina, the amino groups not responsible for adsorption are dansylated by a solid-phase reaction.
  • (5) Subarachnoid alumina may be a good model for human arachnoiditis.
  • (6) However, ascorbic acid, a potent antioxidant, is extracted with the catecholamines onto the alumina and prevents such destruction.
  • (7) Sporulating cells of Bacillus sphaericus 9602 containing fully engulfed forespores at different stages of maturity were broken by ultrasonic disruption, followed by grinding with alumina.
  • (8) Alumina, Kieselguhr and various grades of silica gel have been tested as supports.
  • (9) From the unsaponifiable fraction (63 g) of linseed oil (25 kg), two terpenic alcohols were isolated by alumina column, thin-layer, and gas-liquid chromatography.
  • (10) The salient elements of the methods are extraction of the residues as the free amine with benzene, rapid cleanup on an alumina column, and quantification of the free amine in methanol via SPF.
  • (11) Aluminas, silicas and aluminosilicates were evaluated for their ability to sorb radiolabeled aflatoxin B1 (AFB1) from aqueous solution (in vitro).
  • (12) In the current research, the average coefficient of kinetic friction for the stainless steel couple (0.139) was less than that for the stainless steel arch wire against a polycrystalline alumina bracket (0.174).
  • (13) The method entails blender extraction of 10 g liver with ethyl acetate, column chromatography through Sephadex LH-20 and neutral alumina, and LC analysis on a C18 column with UV detection at 260 nm.
  • (14) Dry ground feed is Soxhlet extracted with hexane and passed through a 2% deactivated alumina column for initial cleanup.
  • (15) Increasing the amount of alumina proportionally increased composite strength.
  • (16) Condensation of 1,2,3,4,6-penta-O-acetyl-beta-D-galactopyranose with benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-beta-D-galactopyranoside in the presence of trimethylsilyl triflate gave crystalline benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-beta-D-ga lactopyranosyl)-beta-D-galactopyranoside (76%), which was converted into benzyl 2-azido-4,6-di-O-benzyl-2-deoxy-3-O-(2,6-di-O-benzyl-beta-D-galactopy ranosyl)-beta-D-galactopyranoside and condensed with 3,4,6-tri-O-acetyl-2-azido-2-deoxy-alpha-D-galactopyranosyl bromide in the presence of silver silicate on alumina and molecular sieve 4 A to give 61% of benzyl O-(3,4,6-tri-O-acetyl-2-azido-2-deoxy-beta-D-galactopyranosyl)-(1----4)- O-(2,6-di- O-benzyl-beta-D-galactopyranosyl)-(1----3)-2-azido-4,6-di-O-benzyl-2-deo xy- beta-D-galactopyranoside.
  • (17) However, these compounds were not recoverable using the alumina column method, so no comparisons between the two methods were possible.
  • (18) The cementless alumina total knee prosthesis, which uses alumina in the portions coming in contact with the bone and a combination of alumina and ultra-high molecular-weight polyethylene (UHMWPE) in the sliding portions, is referred to as a total condylar.
  • (19) In the monkey with an alumina focus in the primary motor area, proprioceptive afferents are crucial in triggering or modulating seizures.
  • (20) This study, a 4-month follow-up period of a 12-month treatment study by the present authors, was concerned with the permanent effects of treatment with diphenylhydantoin and phenobarbital in the alumina-gel monkey model.

Cordierite


Definition:

  • (n.) See Iolite.

Example Sentences:

Words possibly related to "cordierite"