Preconcentration of 1-(2-pyridylazo)—2-naphthol—iron(III)-capriquat on a membrane filter, and third-derivative spectrophotometric determination of iron(III)

Talanta ◽  
1994 ◽  
Vol 41 (2) ◽  
pp. 251-254 ◽  
Author(s):  
I Mori
Keyword(s):  
Spectrophotometric Determination ◽  
Membrane Filter ◽  
Third Derivative

A transparent membrane filter for the solid-phase spectrophotometric determination of trace cationic surfactant in water

The Analyst ◽  
1999 ◽  
Vol 124 (10) ◽  
pp. 1489-1492 ◽  
Author(s):  
S. Taguchi ◽  
K. Morisaku ◽  
Y. Sengoku ◽  
I. Kasahara
Keyword(s):  
Cationic Surfactant ◽  
Spectrophotometric Determination ◽  
Solid Phase ◽  
Membrane Filter

Spectrophotometric determination of traces of silicon in water after collection as silicomolybdenum blue on an organic-solvent-soluble membrane filter

1987 ◽  
Vol 59 (5) ◽  
pp. 787-789 ◽  
Author(s):  
Issei. Kasahara ◽  
Ritsuko. Terai ◽  
Yukari. Murai ◽  
Noriko. Hata ◽  
Shigeru. Taguchi ◽  
...  
Keyword(s):  
Organic Solvent ◽  
Spectrophotometric Determination ◽  
Membrane Filter

Separation and Preconcentration of Sudan Blue II Using Membrane Filtration and UV-Visible Spectrophotometric Determination in River Water and Industrial Wastewater Samples

2015 ◽  
Vol 98 (1) ◽  
pp. 213-217 ◽  
Author(s):  
Yunus Emre Unsal ◽  
Mustafa Tuzen ◽  
Mustafa Soylak
Keyword(s):  
Spectrophotometric Determination ◽  
Industrial Wastewater ◽  
Membrane Filtration ◽  
Matrix Effects ◽  
Membrane Filter ◽  
Cellulose Acetate Membrane ◽  
Separation And Preconcentration ◽  
Wastewater Samples ◽  
Working Media

Abstract A new separation and preconcentration method based on adsorption on a cellulose acetate membrane filter and elution with ethanol was established for the UV-Vis spectrophotometric determination of Sudan blue II. Various analytical parameters such as pH of working media, flow rates of solutions, and sample volumes were optimized. Matrix effects of concomitants were investigated for the quantitative recovery values of Sudan blue II. The preconcentration factor was200. LOD was calculated as 0.96 μg/L. RSD was5.1%. The optimized procedure was applied to the spectrophotometric determination of Sudan blue II in river and industrial wastewater samples from oil and dye products.

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