Experimental Designs Applied to Solid-Phase Derivative Spectrophotometry
نویسندگان
چکیده
منابع مشابه
Sensing of Iron Ions by Solid Phase Spectrophotometry
A new sensitive and selective spectrophotometric method for the determination of iron using a PVC membrane containing bathophenanthroline and dioctylphethalate as the solid phase extraction medium is investigated. Fe(II) in an aqueous sample solution is trapped on the membrane with an anion species, picrate ion and forms a complex with bathophenanthroline. The absorbance of the red-orange m...
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Bioassays are methods employed to estimate the effect of a given substance in living matter, and therefore they are frequently used in the pharmaceutical industry. The experimental design of bioassays has to take into account the intrinsic variability in the biological test units and other factors as operators, day variation, batch variation, etc. Thus, statistical models employed to analyse bi...
متن کاملsensing of iron ions by solid phase spectrophotometry
a new sensitive and selective spectrophotometric method for the determination of iron using a pvc membrane containing bathophenanthroline and dioctylphethalate as the solid phase extraction medium is investigated. fe(ii) in an aqueous sample solution is trapped on the membrane with an anion species, picrate ion and forms a complex with bathophenanthroline. the absorbance of the red-orange membr...
متن کاملDetermination of Iron Species by Combination of Solvent Assisted-Dispersive Solid Phase Extraction and Spectrophotometry
A simple, rapid and sensitive solvent assisted-dispersive solid phase extraction method was developed for the extraction of iron(II) prior to its spectrophotometric determination. The Fe(II) reacted with 2,4,6-tris(2-pyridyl)-1,3,5-triazine, neutralized with sodium dodecyl sulfate and extracted onto the fine particles of benzophenone which were formed upon rapid injection of a mixture of benzop...
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The present work aims to develop a spectrophotometric method for simultaneous estimation of melatonin and Vitamin C in combined dosage form. Absorbance of melatonin and Vitamin C were measured at the absorbance maximum (λ max) at 278 and 256 nm, respectively. The coefficient of correlation for melatonin at 278 nm and Vitamin C at 256 nm is 0.9986 and 0.9968, respectively. A linear relation betw...
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ژورنال
عنوان ژورنال: Microchimica Acta
سال: 2000
ISSN: 0026-3672,1436-5073
DOI: 10.1007/s006040070052