Development of an easy, inexpensive, fast and selective spectrophotometric method for the determination Folic Acid (FA) by its reaction with 4-nitro aniline reagent, good sensitivity, as oxidative coupling in presence Potassium permanganate solution, it was found that concentrations were agreement Beer-Lambert’s law at wavelength 374 nm ranged between 1- 21 µg/ml folic acid a deviation from Bee...

LabVIEW-based software for the automation of a sequential injection analysis instrument for the determination of morphine is presented. Detection was based on its chemiluminescence reaction with acidic potassium permanganate in the presence of sodium polyphosphate. The calibration function approximated linearity (range 5 x 10(-10) to 5 x 10(-6) M) with a line of best fit of y=1.05(x)+8.9164 (R(...

The present work describes a rapid and sensitive method for the determination of ultramicro amounts of tungsten (VI) based on its inhibitory effect on the oxidation of 4hidroxycoumarine by potassium permanganate in the presence of hydrochloric acid. The sensitivity of the method is 20 ng/cm 3 . The probable relative error is -4.8-13 % for the W(VI) concentration range 250 to 20 ng/cm 3 , respec...

Water is a basic need for humans, yet often the quality and quantity become cronstrained as happened in Mojoagung District, Jombang Regency. During dry season, potential water reserves available use rainwater that has been stored. Based on laboratory tests, of stored below standard due to its high KMnO4 (Calium Permanganate) content. Hence we simple filter improve quality. Researchers have cond...

The oxidations of organic compounds by permanganate under solvent free conditions have been studied. Thiols and primary aromatic amines undergo oxidative coupling reactions to give disulfides and diazenes, respectively, sulfides are oxidized to sulfones, primary and secondary alcohols are converted to aldehydes and ketones, 1,4-diols and cyclic ethers give lactones and arenes are oxidized to th...

the kinetics of mn(vii) oxidation of lysine in moderately sulfuric acid solutions was studiedspectrophotometrically in the presence and absence of mn(ii) as catalyst. the reaction was arrangedto be under pseudo first-order condition with respect to mn(vii). the results showed that the pseudofirst-order rate constant increases with increasing [h2so4], [(mn)ii], and [lysine]. the dependence ofthe...

A. FULLY automated nlethod for the (leterinination of serum calcium which is accurate, reproducible, and relatively simple seemed desirable. The additioll of the fluorometer (1) to the modular system of the AutoAnalyzer* suggested the search for a fluorometric calcium procedure. Accordingly, several substances known to complex with calcium were obtained and their fluorescent emission spectra in...