Results 11 to 20 of about 79,511 (259)
ANEW METHOD FOR ESTIMATION MEBENDAZOLE IN ITS PHARMACEUTICAL PREPARATIONS AND IN CAMEL URINE [PDF]
A simple, accurate and rapid spectrophotometric method has been developed for the estimation of mebendazole in pure, pharmaceutical formulations and camel urine.
doaj +1 more source
Research of biologically active compounds of catalpa (Catalpa bignonioides Walt.)
Catalpa bignonioides Walt. (catalpa) the family Bignoniaceae – a tree, which originates from North America. Catalpa bark contains resins and tannins. Monoterpene glycosides were found in the leaf.
O. V. Demeshko +3 more
doaj +1 more source
Study of optimum conditions for formation of phenolic azoeimine [PDF]
The main object of the study is concerned with studying optimal conditions for the azo dyes formed by the reactions of the mother compound 2,4-dihydroxy benzaldehyde and its twelveth imine derivatives in the forms of oxime and Schiff bases by the ...
Adel Saeed Azzoz, Mohammed M. Al-Nuami
doaj +1 more source
A spectrophotometric method for the microdetermination of periodate [PDF]
1. A method is described for measuring the concentration of periodate over the range 0·2–20μm by adding 1,2-di-(p-dimethylaminophenyl)ethane-1,2-diol to a sample solution. Periodate cleaves this compound to from two molecules of p-dimethylaminobenzaldehyde, the extinction of which is then read at 352mμ. 2.
R, Fields, H B, Dixon
openaire +2 more sources
Spectrophotometric Assay of Noradrenaline in Pharmaceutical Formulation with Quinalizarin in Aqueous Solution [PDF]
A simple, rapid and sensitive spectrophotometric method for the determination of noradrenaline was developed. The method is based on the proton transfer reaction with quinalizarin in aqueous neutral solution to form a violet product showing maximum ...
Thabit S. Al-Ghabsha, Amal M. Saeed
doaj +1 more source
The determination of hyperoside in the flower and leaf of hawthorn (Crataegus oxycantha and Crataegus monogyna) by the spectrophotometric method [PDF]
The flower and leaf of hawthorn contains many active components, used in the production of pharmaceutical preparations for cardiotonic, anti-hypertonic anti-hypotonic, artherosclerotic, anti-arithmic and anti-anemic groups.
Mihajlović Dušanka +2 more
doaj +1 more source
Effect of oviposition by Bactrocera dorsalis on the antioxidant activity of orange juice [PDF]
Among fruits and fruit products, oranges and orange juice are the most widely consumed worldwide. However, the effects of pest infestation of oranges on the quality of orange juice are not yet known.
M. Ni +6 more
doaj +1 more source
The aim of the study was to determine antimicrobial and antioxidant activity of plant extracts against pathogenic microorganisms in vitro. Extracts of black elder (Sambucus nigra L.), stinging nettle (Urtica dioica L.), marigold (Calendula officinalis L.)
Miroslava Kačániová +7 more
doaj
This Study is concerned a fast, easy, sensitive, accurate and economical spectrophotometric method for the determination of Dexamethasone. This method based on the use of UV- spectra measurements at 242 nm.
Rafal Abdulraheem Abdullah +1 more
doaj +1 more source
Spectrophotometric method for the estimation of guanethidine
Abstract A spectrophotometric method for the estimation of guanethidine sulphate, based on the development of blue colour in alkaline medium after reaction with lithium and sodium molybdophosphotungstate B.P. reagent, is described. The method is more sensitive and rapid than the existing British Pharmacopoeia methods.
B C, BOSE, R, VIJAYVARGIYA
openaire +2 more sources

