Analyst (Cambridge UK) 2001-04-01

Determination of manganese in water samples by flame atomic absorption spectrometry after cloud point extraction.

K C Teo, J Chen

Index: Analyst 126(4) , 534-7, (2001)

Full Text: HTML

Abstract

Cloud point extraction has been used for the preconcentration of manganese, after the formation of a complex with 1-(2-thiazolylazo)-2-naphthol (TAN), and later analysis by flame atomic absorption spectrometry using octylphenoxypolyethoxyethanol (Triton X-114) as surfactant. The chemical variables affecting the separation phase and the viscosity affecting the detection process were optimized. Under the optimum conditions (i.e., pH = 9.2, [TAN] = 2.0 x 10(-5) mol l-1, [Triton X-114] = 0.05%, added methanol volume = 0.2 ml), preconcentration of 50 ml of sample solution permitted the detection of 0.28 ppb for manganese. The enhancement factor was 57.6. The proposed method has been applied to the determination of manganese in water samples.

Related Compounds

  • NSC139021

Related Articles:

Planar triazinium cations from vanadyl-mediated ring cyclizations: the thiazole species for efficient nuclear staining and photocytotoxicity.

2013-04-07

[Dalton Trans. 42(13) , 4436-49, (2013)]

Study on the determination of heavy metals in water samples with ultrasound-assisted dispersive liquid-liquid microextraction prior to FAAS.

2013-01-01

[Water Sci. Technol. 67(2) , 247-53, (2013)]

Removal and recovery of mercury(II) from hazardous wastes using 1-(2-thiazolylazo)-2-naphthol functionalized activated carbon as solid phase extractant.

2004-09-10

[J. Hazard. Mater. 113(1-3) , 75-9, (2004)]

Potentiometric, spectroscopic and thermal studies on the metal chelates of 1-(2-thiazolylazo)-2-naphthalenol.

2005-03-01

[Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 61(5) , 929-36, (2005)]

Non-chromatographic mercury speciation and determination in wine by new core-shell ion-imprinted sorbents.

2012-09-15

[J. Hazard. Mater. 231-232 , 49-56, (2012)]

More Articles...