Spectrofluorimetric determination of trace amounts of Ga(III) in aluminium and biological samples with 1-(2-pyridylazo)-2-naphthol in sodium dodecyl sulphate micellar medium

1989 ◽  
Vol 334 (1) ◽  
pp. 41-44 ◽  
Author(s):  
L. M. Polo Diez ◽  
M. W. Kabbani ◽  
J. S. Durand Alegria
Keyword(s):  
Sodium Dodecyl Sulphate ◽  
Biological Samples ◽  
Sodium Dodecyl ◽  
Micellar Medium ◽  
Spectrofluorimetric Determination

Synchronous Spectrofluorimetric Determination of Naphthalene in Water Samples Using Mixed Micellar Medium

2014 ◽  
Vol 97 (3) ◽  
pp. 921-927 ◽  
Author(s):  
Omar Abdel-Aziz Ghonim ◽  
Amira Mabrouk El-Kosasy ◽  
Sherif Mahmoud El-Sayed Okeil
Keyword(s):  
Water Samples ◽  
Environmental Protection Agency ◽  
Tap Water ◽  
Aqueous Media ◽  
Sodium Dodecyl ◽  
Real Life ◽  
Micellar Medium ◽  
Spectrofluorimetric Determination ◽  
Different Sources

Abstract A mixed micellar medium of sodium dodecyl sulfate and Pluronic F-127 was used to enhance the fluorescence of naphthalene and to obtain lower LODs. The method was based upon measuring the first-derivative synchronous fluorescence spectrum of naphthalene by using a mixed micellar medium at a constant wavelength difference Δλ = 60 nm, where a greater fluorescence enhancement was observed if compared to using a single surfactant separately. A linear fluorimetric calibration curve was obtained for naphthalene in a concentration range of 10–200 ng/mL. The LOD was 7.13 ng/mL, which is well below the health advisory limit for naphthalene in drinking water as suggested by the U.S. Environmental Protection Agency. The method can be easily adopted for determination of naphthalene in aqueous media including tap water and river water. The recoveries obtained were 95.979–115.645%. The proposed method was validated according to International Conference on Harmonization guidelines and successfully applied to determine naphthalene in real life water samples from different sources.

scholarly journals Highly Sensitive Spectrofluorimetric Determination of Doxycycline Using Doxycycline-Europiumion-Sodium Dodecyl Sulfonate System

2013 ◽  
Vol 25 (6) ◽  
pp. 3321-3324 ◽  
Author(s):  
Baoxiu Jia ◽  
Ping Zhang ◽  
Renliang Wang ◽  
Yuqin Li ◽  
Caihong Liu ◽  
...  
Keyword(s):  
Sodium Dodecyl ◽  
Sodium Dodecyl Sulfonate ◽  
Highly Sensitive ◽  
Spectrofluorimetric Determination

scholarly journals Determination of Sodium Cromoglycate by a New Kinetic Spectrophotometric Method in Biological Samples

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Mohsen Keyvanfard ◽  
Khadijeh Alizad ◽  
Razieh Shakeri
Keyword(s):  
Standard Deviation ◽  
Sodium Cromoglycate ◽  
Spectrophotometric Method ◽  
Calibration Curve ◽  
Biological Samples ◽  
Limit Of Detection ◽  
Micellar Medium ◽  
Relative Standard ◽  
Kinetic Spectrophotometric

A new kinetic spectrophotometric method is described for the determination of ultratrace amounts of sodium cromoglycate (SCG). The method based on catalytic action of SCG on the oxidation of amaranth with periodate in acidic and micellar medium. The reaction was monitored spectrophotometrically by measuring the decrease in absorbance of the amaranth at 518 nm, for the first 4 min from initiation of the reaction. Calibration curve was linear in the range of 4.0−36.0 ng mL−1SCG. The limit of detection is 2.7 ng mL−1SCG. The relative standard deviation (RSD) for ten replicate analyses of 12, 20, and 28 ng mL−1SCG was 0.40%, 0.32%, and 0.53%, respectively. The proposed method was used for the determination of SCG in biological samples.

Spectrofluorimetric determination of thiabendazole in a micellar medium

1993 ◽  
Vol 111 (1-3) ◽  
pp. 113-118 ◽  
Author(s):  
V. Gonz�lez D�az ◽  
A. Gonz�lez Armas ◽  
C. Ossuna Mart� ◽  
M. L. P�rez Pont
Keyword(s):  
Micellar Medium ◽  
Spectrofluorimetric Determination

Spectrofluorimetric Determination of Thiols in Biological Samples with a New Fluorescent Probe 3‐Maleimidylbenzanthrone

2005 ◽  
Vol 38 (5) ◽  
pp. 791-802 ◽  
Author(s):  
Ni‐Na Fu ◽  
Hong Wang ◽  
Meng‐Ling Li ◽  
Guo‐Jin Zheng ◽  
Hua‐Shan Zhang ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Biological Samples ◽  
Spectrofluorimetric Determination
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