scholarly journals Separation and Determination of Scandium Spectrophotometric Method Using Alizarin Red S

1955 ◽  
Vol 27 (10) ◽  
pp. 1551-1554 ◽  
Author(s):  
A. R. Eberle ◽  
M. W. Lerner
Keyword(s):  
Spectrophotometric Method ◽  
Alizarin Red S ◽  
Alizarin Red

Spectrophotometric determination of aluminium with alizarin red S sensitized with polyvinylpyrrolidone

1983 ◽  
Vol 149 ◽  
pp. 379-383 ◽  
Author(s):  
J. Hernández-Méndez ◽  
R. Carabias-Martínez ◽  
B. Moreno-Cordero ◽  
L. Gutiérrez-Dávila
Keyword(s):  
Spectrophotometric Determination ◽  
Alizarin Red S ◽  
Alizarin Red

Electrocatalytic determination of chlorpromazine drug using Alizarin Red S as a mediator on the glassy carbon electrode

2011 ◽  
Vol 47 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Mohammad Ali Karimi ◽  
Abdolhamid Hatefi-Mehrjardi ◽  
Mohammad Mazloum Ardakani ◽  
Reza Behjatmanesh Ardakani ◽  
Mohammad Hossein Mashhadizadeh ◽  
...  
Keyword(s):  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Alizarin Red S ◽  
Carbon Electrode ◽  
Alizarin Red ◽  
Electrocatalytic Determination

scholarly journals Spectrophotometric Determination of Toxic Elements (Cadmium) in Aqueous Media

2011 ◽  
pp. 1-12 ◽  
Author(s):  
MR Ullah ◽  
M Enamul Haque
Keyword(s):  
Sodium Salt ◽  
Biological Samples ◽  
Chemical Engineering ◽  
Sulphonic Acid ◽  
Alizarin Red S ◽  
Standard Reference Materials ◽  
Complexing Agents ◽  
Alizarin Red ◽  
Acid Sodium Salt

Trace amount of toxic element (Cadmium) was determined by spectrophotometer method using 1, 2-dihydroxy anthraquinone-3-sulphonic acid, sodium salt. (Alizarin red S) as a new spectrophotometer reagent. Alizarin red S reacts in slightly acidic solution (0.005 - 0.05M H2SO4) with cadmium to give a deep greenish yellow chelate which has an absorption maximum at 422 nm. The reaction is instantaneous and absorbance remains stable for over 24hrs. The average molar absorption co-efficient and sandell's sensitivity were found to be 2.24 103L mol-1 cm-1 and 20 ng cm 2 of Cd respectively. Linear calibration graphs were obtained for 0.1 - 40μg mL-1 of Cd. The stoichiometric composition of the chelate is 1 : 2 (Cd : Alizarin red S). Large excess of over 50 cations, anions, and some common complexing agents (e.g EDTA, oxalate, citrate phosphate, thio-urea, SCN-) do not interfere in the determination. The method was successfully used in the determination of cadmium in Several Standard Reference Materials (alloys, steels and water) as well as in some environmental waters (In land and surface), biological samples (human blood and urine), soil samples and complex synthetic mixtures. The method has high precision and accuracy. (S = ±0.01 for 0.5 μg mL-1. Keywords spectrophotometry; cadmium determination; 1, 2-dihydroxy anthraquinone-3-sulphonic acid; sodium salt (Alizarin red S); alloy; steel; environmental; biological; samples; soil samplesDOI: 10.3329/jce.v25i0.7233Journal of Chemical Engineering, IEB Vol. ChE. 25, No. 1, December 2010 pp.1-12

Spectrofluorimetric determination of boron in soils, plants and natural waters with Alizarin Red S

The Analyst ◽  
1992 ◽  
Vol 117 (7) ◽  
pp. 1189-1191 ◽  
Author(s):  
Ana M. García Campaña ◽  
Fermín Alés Barrero ◽  
Manuel Román Ceba
Keyword(s):  
Natural Waters ◽  
Alizarin Red S ◽  
Alizarin Red ◽  
Spectrofluorimetric Determination

scholarly journals Alizarin Red S-Confined Layer-By-Layer Films as Redox-Active Coatings on Electrodes for the Voltammetric Determination of L-Dopa

Materials ◽  
2017 ◽  
Vol 10 (6) ◽  
pp. 581 ◽  
Author(s):  
Shigehiro Takahashi ◽  
Iwao Suzuki ◽  
Tatsuro Sugawara ◽  
Masaru Seno ◽  
Daichi Minaki ◽  
...  
Keyword(s):  
Voltammetric Determination ◽  
Alizarin Red S ◽  
Layer By Layer ◽  
Alizarin Red ◽  
Redox Active
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