SEPARATION AND PRECONCENTRATION TRACE AMOUNTS OF MERCURY (II) FROM WATER SAMPLES USING SOLVENT-ASSISTED DISPERSIVE SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION

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JAMALI MOHAMMAD REZA; TAVAKOLI MAEDE

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Journal: JOURNAL OF APPLIED CHEMISTRY Year:2016 | Volume:11 | Issue:38 Page(s): 63-74

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Title

SEPARATION AND PRECONCENTRATION TRACE AMOUNTS OF MERCURY (II) FROM WATER SAMPLES USING SOLVENT-ASSISTED DISPERSIVE SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION

Author(s)

JAMALI MOHAMMAD REZA | TAVAKOLI MAEDE | Issue Writer Certificate

Keywords

SOLVENTQ2

ASSISTED DISPERSIVE SOLID PHASE EXTRACTIONQ2

HG (II)Q2

SPECTROPHOTOMETRIC DETERMINATIONQ1

WATER SAMPLESQ1

Abstract

In this study, SOLVENT-assisted dispersive solid phase extraction (SADSPE) method was developed and applied for separation, preconcentration, and SPECTROPHOTOMETRIC DETERMINATION of Hg (II) in natural WATER SAMPLES. Dithizone was used as a chelating and chromogenic agent. Several variables that affect the efficiency and sensitivity of extractive-spectrophotometric procedure such as type and amount of sorbent, type and volume of dispersive SOLVENT, sulfuric acid concentration, dithizone concentration, and salt concentration were investigated and optimized. After optimization of the complexation and extraction conditions, an enrichment factor of 15 was obtained. The calibration curve was linear in the range of 5-250 mg L-1 and the limit of detection was 1.5 mg L-1. The relative standard deviation for 100 mg L-1 of Hg (II) was lower than 2.5%. The proposed method was applied to the determination of Hg (II) in several natural WATER SAMPLES with satisfactory results.

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APA: Copy

JAMALI, MOHAMMAD REZA, & TAVAKOLI, MAEDE. (2016). SEPARATION AND PRECONCENTRATION TRACE AMOUNTS OF MERCURY (II) FROM WATER SAMPLES USING SOLVENT-ASSISTED DISPERSIVE SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION. JOURNAL OF APPLIED CHEMISTRY, 11(38), 63-74. SID. https://sid.ir/paper/243290/en

Vancouver: Copy

JAMALI MOHAMMAD REZA, TAVAKOLI MAEDE. SEPARATION AND PRECONCENTRATION TRACE AMOUNTS OF MERCURY (II) FROM WATER SAMPLES USING SOLVENT-ASSISTED DISPERSIVE SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION. JOURNAL OF APPLIED CHEMISTRY[Internet]. 2016;11(38):63-74. Available from: https://sid.ir/paper/243290/en

IEEE: Copy

MOHAMMAD REZA JAMALI, and MAEDE TAVAKOLI, “SEPARATION AND PRECONCENTRATION TRACE AMOUNTS OF MERCURY (II) FROM WATER SAMPLES USING SOLVENT-ASSISTED DISPERSIVE SOLID PHASE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION,” JOURNAL OF APPLIED CHEMISTRY, vol. 11, no. 38, pp. 63–74, 2016, [Online]. Available: https://sid.ir/paper/243290/en

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