Results 21 to 30 of about 1,703,225 (294)
Sol-gel based sensor for selective formaldehyde determination [PDF]
, 2010 We report the development of transparent sol–gels with entrapped sensitive and selective reagents for the detection of formaldehyde. The sampling method is based on the adsorption of formaldehyde from the air and reaction with β- diketones (for ...
Kanatharana, Proespichaya +4 more
core +1 more source
The spectrophotometric determination of diacetyl
Analytical Biochemistry, 1989 A new assay for the determination of diacetyl based on the colorimetric reaction with creatine and alpha-naphthol in an alkaline medium was developed. After a determination of optimal concentrations of the necessary reagents, the assay could easily detect as little as 0.5 micrograms of diacetyl.
J, Mattessich, J R, Cooper
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Spectrophotometric Determination of frusemide in Some Pharmaceutical via Oxidative Coupling Reaction [PDF]
مجلة التربية والعلم, 2006 A simple and accurate spectrophotometric method has been described for the determination of frusemide in pharmaceutical preparation. The method is based on oxidative coupling reaction of frusemide with promethazine in aqueous acidic solution in the ...
Fawaz. Ibrahim, Neif Ahmad
doaj +1 more source
A Review on Analytical Methods for Piperazine Determination
NTU Journal of Pure Sciences, 2022 Piperazine compounds mediate their anthelmintic action by generally paralyzing parasites, allowing the host body to easily remove or expel the invading organism. It is an anthelmintic drug in human as well as in veterinary medicine.
Usra Ibrahim Saeed Al-Neaimy +2 more
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Tikrit Journal of Pure Science, 2023 This research introduce simple & fast spectrophotometric method for determination of Salbutamol Sulphate drug by Oxidation Coupling with 4-aminoantipyrine(4-AAP) and NaIO4 as Oxidant reagent. Purple color solution is found which give maximum absorbance
Asmaa Ahmed Mohammed
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SPECTROPHOTOMETRIC DETERMINATION OF BLOOD OXYGEN
Journal of Biological Chemistry, 1949 Gasometric methods for estimating blood oxygen are time-consuming. This consideration often limits the number of observations which can be made in the course of experiments requiring oxygen determinations. In many cases it is an arteriovenous difference which is particularly desired, as in the measurement of cardiac output by the Fick principle, or the
J B, HICKAM, R, FRAYSER
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Spectroscopic determination of manganese ion [PDF]
E3S Web of ConferencesA sorption-spectrophotometric method for the determination of manganese (II) ions in industrial wastewater has been developed. A corresponding immobilisation procedure is presented.
Smanova Zulayho +4 more
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Spectrophotometric determination of Salbutamol sulphate by coupling with diazotized 2,4-dinitroaniline [PDF]
مجلة التربية والعلم, 2013 A quick, convenient and sensitive method has been developed for the determination of microgram amounts of salbutamol sulphate in its pure form and pharmaceutical preparations. The method is based on the coupling reaction of the drug with diazotized 2,4 -
M. S. Saleem +2 more
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SPECTROPHOTOMETRIC DETERMINATION OF NITRAZEPAM IN TABLETS [PDF]
Bulletin of Pharmaceutical Sciences. Assiut, 1985 A sensitive spectrophotometric method is reported for the determination of nitrazepam either in pure form or in tablets. The method is based on reduction with zinc dust and calcium chloride followed by reaction with sodium pentacyanoaminoferrate(II) to give a violet product having an absorbance maximum at 560 nm.
openaire +2 more sources
Spectrophotometric Determination of Catecholamines in Pharmaceutical Preparations Via Charge Transfer Complex Formation Using Bromanil Reagent [PDF]
مجلة التربية والعلم, 2007 A simple, rapid and sensitive spectrophotometric method has been developed for the determination of trace amounts of catecholamine drugs (dopamine, levodopa and methyldopa).
M. Al-Sharook
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