Extraction and separation of mercury(II) from succinate media with high molecular weight amine as an extractant

Removal of heavy metal ions from aqueous solution by superabsorbent poly (NIPAAm/DAPB/AA) amphoteric nanohydrogel

“…(2015) [1][2][3][4][5][6][7][8][9][10][11][12][13][14] www.deswater.com doi: 10.1080/19443994.2015.1060171 amine, carboxylic acid, and sulfonic acid groups of hydrophilic polymers, which may be cross-linked by chemical or physical interactions. Such hydrophilic polymers, which can absorb, swell, and retain aqueous solutions up to hundred times to their own weight, are able to expand in volume with respect to changes in external parameters, such as pH, temperature, and ionic strength [11].…”

“…Also, hydrogels can control the diffusion process and bind chemical species through their polar functional groups. These functional groups existing in cross-linked polymeric materials can be manipulated easily for specific applications, such as functioning as complex agents for heavy metal ions removal from wastewater [12,13].…”

Extractive Spectrophotometric Determination of Trace Hg (II) in Eye Drops and Ayurvedic Medicines Using Pyridine 2-Carboxaldehyde 2-Hydroxybenzoylhydrazone

“…Various analytical methods and reagents was used for mercury determination that includes colorimetry, atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), cold vapour atomic absorption spectroscopy (CVAAS), cold vapour atomic fluorescence spectroscopy (CVAFS), polarography, neutron activation analysis, gas chromatography (GC) and high-performance liquid chromatography (HPLC) [8][9][10][11][12][13][14][15][16][17] . Similarly, reagents like 1-(1H-benzimidazol-2-yl) guanidine (GIB), (Sensing of mercury(II) using 1-(1H-benzimidazol-2-yl) guanidine as chromophore 18 , Poly(2-aminothiazole) (Synthesis of Poly(2-aminothiazole) for Selective Removal of Hg(II) in Aqueous Solutions 19 , 2-octylaminopyridine (2-OAP), Extraction and separation of mercury(II) from succinate media with high molecular weight amine as an extractant 20 , have been explored recent time. Due to increasing recognition that alternative medicine such as Ayurveda, Unani, and Homeopathy etc.…”

“…Despite of this, very few systematic studies was carried out to know the mercury contents and performance of particular Ayurveda product. Recently, Chandrasekhar et al used high molecular weight amines for the determination of mercury in ayurvedic medicine 20 . The chromogenic reagent Pyridine-2-carboxaldehyde 2-hydroxybenzoylhydrazone is good ligand that can form metal complexes with various ions.…”

New type of highly selective microcapsules for the removal of mercury from surface polluted waters

“…Different techniques have been used for the elimination of mercury from aqueous systems: reverse osmosis [4], coagulation [5], solvent extraction [6], supported liquid membranes (SLM) [7], ion exchange resins [8] and adsorption on solid substrates [9]. Despite the fact that solvent extraction is the most selective method, it is associated with high operational costs and the pollution of the aqueous phase by the loss of the organic solvent.…”