DETERMINATION OF ULTRA TRACE AMOUNT MANGANESE (II) IN WATER SAMPLES WITH THE 1- (2-PYRIDYLAZO)-2-NAPHTHOL, (PAN) BY THE BROMATE ION IN SULFURIC ACID WITH KINETIC SPECTROPHOTOMETRIC METHOD

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FROUDI JAHROMI M.R.; ZANDIFAR S.; BAGHERI S.; POUR GHOLAM R.

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Journal Paper

Paper Information

Journal: JOURNAL OF PHYSICAL AND THEORETICAL CHEMISTRY Year:2014 | Volume:11 | Issue:3 Page(s): 121-128

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Title

DETERMINATION OF ULTRA TRACE AMOUNT MANGANESE (II) IN WATER SAMPLES WITH THE 1- (2-PYRIDYLAZO)-2-NAPHTHOL, (PAN) BY THE BROMATE ION IN SULFURIC ACID WITH KINETIC SPECTROPHOTOMETRIC METHOD

Author(s)

FROUDI JAHROMI M.R. | ZANDIFAR S. | BAGHERI S. | POUR GHOLAM R. | Issue Writer Certificate

Keywords

MANGANESE (II)

KINETIC

1- (2-PYRIDYLAZO)-2-NAPHTHOL

((PAN))

DETERMINATION

SPECTROPHOTOMETIC

Abstract

A new KINETIC SPECTROPHOTOMETIC method for the DETERMINATION of trace amount manganese (II) in Tea real samples has been described based on it s the catalytic effect on the oxidations of 1-(2-Pyridyl Azo) - 2 -Naphthol, (PAN), by potassium bromated in sulfuric acid. The reaction is followed spectrophotometrically by measuring the decrease in the absorbance at 547.5 nm. Under the optimum conditions of 0.2 molL-1 sulfuric acid, 1.0×10-4 molL-1, 1- (2-PyridylAzo) -2- Naphthol, (PAN), 1mL of potassium bromate 0.11 mol L-1 at 35oC, calibration graph in the rang of 0.001-0.06 mg mL-1 manganese (II). Concentration was obtained with detection limit of 0.23 ng mL-1 by the fixed-time method of 4.5 min. The relative standard deviation for 0.05mg mL-1 manganese (II) is %90. No serious interference was identified. The applicability of the method was demonstrated by the DETERMINATION of the manganese (II) in Water, Vegetables and blood samples.

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APA: Copy

FROUDI JAHROMI, M.R., ZANDIFAR, S., BAGHERI, S., & POUR GHOLAM, R.. (2014). DETERMINATION OF ULTRA TRACE AMOUNT MANGANESE (II) IN WATER SAMPLES WITH THE 1- (2-PYRIDYLAZO)-2-NAPHTHOL, (PAN) BY THE BROMATE ION IN SULFURIC ACID WITH KINETIC SPECTROPHOTOMETRIC METHOD. JOURNAL OF PHYSICAL AND THEORETICAL CHEMISTRY, 11(3), 121-128. SID. https://sid.ir/paper/633513/en

Vancouver: Copy

FROUDI JAHROMI M.R., ZANDIFAR S., BAGHERI S., POUR GHOLAM R.. DETERMINATION OF ULTRA TRACE AMOUNT MANGANESE (II) IN WATER SAMPLES WITH THE 1- (2-PYRIDYLAZO)-2-NAPHTHOL, (PAN) BY THE BROMATE ION IN SULFURIC ACID WITH KINETIC SPECTROPHOTOMETRIC METHOD. JOURNAL OF PHYSICAL AND THEORETICAL CHEMISTRY[Internet]. 2014;11(3):121-128. Available from: https://sid.ir/paper/633513/en

IEEE: Copy

M.R. FROUDI JAHROMI, S. ZANDIFAR, S. BAGHERI, and R. POUR GHOLAM, “DETERMINATION OF ULTRA TRACE AMOUNT MANGANESE (II) IN WATER SAMPLES WITH THE 1- (2-PYRIDYLAZO)-2-NAPHTHOL, (PAN) BY THE BROMATE ION IN SULFURIC ACID WITH KINETIC SPECTROPHOTOMETRIC METHOD,” JOURNAL OF PHYSICAL AND THEORETICAL CHEMISTRY, vol. 11, no. 3, pp. 121–128, 2014, [Online]. Available: https://sid.ir/paper/633513/en

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