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Effect of plastic deformation on Corrosion of cadmium in 0.1 m sodium Sulphate solution
(
Qatar University
, 1993 , Article)
The present investigation was carried out to study the influence of prior plastic deformation and surface finish on the corrosion behaviour of pure cadmium in 0.1 M Na2SC>4 solution at 25° C. Cylindrical specimens were ...
The Inhibitive Action Of Sodium Soya Sulphonate Towards The Corrosion Of Aluminium In Hydrochloric Acid
(
Qatar University
, 1993 , Article)
The dissolution of aluminium in 2M hydrochloric acid in the presence of sodium soya sulphonate (SSS) as corrosion inhibitor has been studied using hydrogen evolution and thermometric methods. The two methods gave consistent ...
Phytochemical investigation of thymus decassatus l. 1. Flavonoids and volatile oil
(
Qatar University
, 1993 , Article)
Investigation of the flavonoidal constituents of Thymus decassatus, L. resulted in the isolation and identification of thymonin, 5,6,4'-trihydroxy-7,3'-dimethoxyl flavone, and apigenin. Investigation of the volatile oil ...
Inhibition of Aluminium Corrosion in Hydrochloric Acid
(
Qatar University
, 1993 , Article)
The inhibitive effect of oximes, P-diketones and hydrazides, on the corrosion of aluminium in 2M HC1 has been investigated galvanostatically. The results suggest that, in presence of inhibitors, the anode is preferentially ...
Effect Of Ca++ And Mg++ On The Binding Of Cytoplasmic And Nuclear Estradiol Receptors In Breast Cancer Of Female Patients
(
Qatar University
, 1993 , Article)
Specific estradiol receptors were quantitatively determined in the cytosol and nuclear fractions of four cancerous breast tissues and one normal uterus. Validated methods are described for estradiol receptor assay. The ...
Transmetalation Mechanisms
(
Qatar University
, 1993 , Article)
Transmetalation is the stoichiometric replacement of the metals in a polymetallic target T with different metals from reagents called transmetalators, TM. Transmetalation at useful rates under mild conditions is an excellent ...
Detection Of Small Amounts Of Lard In Other Animal Fats
(
Qatar University
, 1993 , Article)
The composition of fatty acids at the b-position (B-FA) and a, a' -positions of the. triacylglycerol was used to establish new criteria for the detection of small amounts of lard in other fats. Determination of P-FA was ...
Constituents of plants growing in qatar xxiii. Flavonoids of francoeuria crispa
(
Qatar University
, 1993 , Article)
Investigation of the flavonoid constituents of Francoeuria crispa, resulted in the isolation and identification of four flavonoids: quercetin, qucrcetin-3-O-gIucoside, quercetin-7-0-glucoside and quercetin-3-methyl ether.
Analytical Studies Of Some Controlled And Noncontrolled Drugs Of Abuse (II)
(
Qatar University
, 1993 , Article)
Benzodiazepines, barbiturates, amphetamines and some other non-controlled drugs were identified by GLC and HPLC then confirmed by GC-MS techniques. Comparative studies and discussions on the results obtained by GLC and ...
Effect Of Gossypol, Apogossypol And Gossypolone On Fertility Of Male Rats And In Vitro Sperm Motility
(
Qatar University
, 1993 , Article)
The effect of the naturally occurring polyphenolic pigment, gossypol, and some of its metabolites, apogossypol and gossypolone, on the fertility of male rats has been studied in vivo. The normal growth of the rats was ...