Determination of Chromium, Copper and Lead in River Water by Graphite-Furnace Atomic Absorption Spectrometry after Coprecipitation with Terbium Hydroxide

Abstract

Coprecipitation with metal hydroxides has been widely used for the concentration of trace metal ions in water, associated with a number of determination techniques.

Determination of Heavy Metals at Sub-ppm Levels in Seawater and Dialysis Solutions by FA AS after Tetrakis(pyridine)-nickel(II)bis(thiocyanate) Coprecipitation

“…Atsuya et al 35 used nickel as a carrier element combined with ammonium pyrrolidinedithiocarbamate (APDC) to collect and determine traces of lead and selenium from aqueous solutions by graphite furnace atomic absorption spectrometry. Additionally, many metal hydroxides having lowsolubility products have been used for coprecipitation purposes of trace metals from various media: such as indium, [36][37][38] erbium, 39 cerium(IV), 40 samarium, 41 terbium, 42 and lanthanum hydroxide. 43,44 A nickel sulfide fire assay and a tellurium coprecipitation technique were performed for the determination of platinum group elements with ICP-MS. 45,46 In some recent studies, Cu(II)-chelating agent coprecipitation systems were also appeared for the determination of various heavy metals by using FAAS [47][48][49][50] and ICP-MS. 51 In the current work, an attempt was made to establish a simple, rapid and reliable method to determine the Cr(III), Mn(II), Fe(III), Co(II), Cu(II), Cd(II) and Pb(II) ions by FAAS in artificial and real seawater samples, and dialysis solutions (a peripheral dialysis) after separation/preconcentration using the tetrakis(pyridine)nickel(II)bis(thiocyanate) precipitate (TP-Ni-BT) 52 coprecipitation system.…”

Microfluidic Paper-based Analytical Device for the Determination of Hexavalent Chromium by Photolithographic Fabrication Using a Photomask Printed with 3D Printer

“…Various analytical techniques have been reported to determine Cr VI , spectrophotometry, 3 titration, 4 flow injection analysis, 5,6 atomic absorption spectrometry, 7,8 inductively coupled plasma optical emission spectroscopy, 9 inductively coupled plasma mass spectrometry, 10 and synchrotron-radiation X-ray fluorescence analysis. 11 These analytical techniques have high sensitivity and precision, but, require a long time for analysis, expensive instruments, and trained operators.…”

The use of silica gel modified with allyl 6-methyl-4-phenyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate for selective separation and preconcentration of lead in environmental samples

“…The World Health Organization recommended a limit of 10 μg L −1 of lead in drinking water (Baird 1999), which requires a very sensitive measurement technique. Currently, the most common analytical methods for the lead trace determination are flame atomic absorption spectrometry (FAAS) (Dos Santos et al 2004;Silva and Roldan 2009;Soylak et al 2006;Tokalioglu et al 2009;Tuzen et al 2006), electrothermal atomic absorption spectrometry (Martinis et al 2010;Jiang and Hu 2008;Liang et al 2008;Minami et al 2005), inductively coupled plasma atomic emission spectrometry , and inductively coupled plasma-mass spectrometry (Diedjibegovic et al 2012;Diang and Hu 2012). FAAS is still being used because it combines a fast analysis time, a relative simplicity and a cheaper cost.…”