Now showing items 631-640 of 682
Ultrafiltrate of saliva collected in situ for the measurement of testosterone
(Elsevier, 1991-08-01)
A device for the in situ collection of an ultrafiltrate of saliva was investigated. The collector consists of an osmotic pump that, when placed in the mouth, accumulates a prepurified salivary filtrate within a few minutes. ...
Analysis of bioproduct separation using gel-enclosed adsorbents
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1990-08)
The concept of “gel-enclosed” adsorbents was recently introduced for whole fermentation broth processing. The term “gel-enclosed adsorbents” in this paper refers to small adsorbent particles such as the ones used in affinity ...
Isolation and characterization of a second lectin (SNA-II) present in elderberry (Sambucus nigra L.) bark
(Elsevier, 1990-03)
A second lectin (SNA-II) has been isolated from elderberry (Sambucus nigra L.) bark by affinity chromatography on immobilized asialo-glycophorin. This lectin is a blood group nonspecific glycoprotein containing 7.8% ...
Thermodynamic properties of ammonium haloplatinates: II. Heat capacity and thermodynamic functions of deuterated ammonium hexachloroplatinate (ND4)2PtCl6 at temperatures from 5 K to 350 K
(Elsevier, 1991-07)
The heat capacity of deuterated ammonium hexachloroplatinate (ND4)2PtCl6 was measured at temperatures from 5 K to 350 K by adiabatic calorimetry. One λ-shaped anomaly, absent in the undeuterated salt, was found in ...
A quantitative dot-blot immunoassay for integral membrane proteins: Preparation of pancreatic plasma membranes containing apical and basolateral domains
(Elsevier, 1991-01)
Modifications of standard dot-blot immunoassay techniques have been made for the quantitation of integral membrane protein antigens. The modification involves the signal development step, which is performed by using ...
Hot-atom chemistry
(Kluwer Academic Publishers; Akadémiai Kiadó ; Springer Science+Business Media, 1990-09)
Research in the chemical effects of the nuclear transformations during the past 50 years is reviewed.
Hadamard transform photothermal deflection desitometry of electrophretically blotted proteins
(Elsevier, 1990)
Hadamard transform spatial multiplexing techniques are applied to laser densitometry in order to prevent the photo-induced degradation of sensitive materials. Photochemical and thermal degradations can often occur in point ...
Kinetics of phenol oxidation in supercritical water
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1992-03)
Aqueous solutions of phenol were oxidized in a flow reactor at temperatures between 300 and 420°C (0.89 < T r < 1.07) and pressures from 188 to 278 atm (0.86 < P r < 1.27). These conditions included oxidations in both ...
Cracks developed during SrTiO 3 thin-film preparation from polymeric precursors
(John Wiley & Sons, Ltd., 1999-05)
Strontium titanate (SrTiO 3 ) thin films were prepared by dip-coating Si(111) single-crystal substrates in citrate solutions of ethylene glycol, considering several citric acid/ethylene glycol (CA/EG) ratios. Measurements ...
A synthesis of (+)-7-Epiaustraline and (-)-7-Epialexine
(Elsevier, 1991-09-30)
Reductive cyclization of the azido epoxides 19[alpha] and 19[beta] followed by deprotection afforded the HIV inhibitor (+)-7-epiaustraline 7 and (-)-7-epialexine 9. The formation of 7 proceeded with an unusual inversion ...