Multielement determination of heavy metals in water samples by continuous powder introduction microwave-induced plasma atomic emission spectrometry after preconcentration on activated carbon

A New Thioamide Derivative for Separation and Preconcentration of Multi Elements in Aquatic Environment by Cloud Point Extraction

“…Due to the low concentration of these metals in the environmental and biological samples and interfering effects, a preconcentration/separation technique is generally necessary prior to the determination. For this purpose, various analytical procedures have been used, such as adsorption on activated carbon [3,4] co-precipitation [5,6] column extraction [7,8] ion-selective electrode [9,10] liquid-liquid extraction (LLE) [11] and cloud-point extraction (CPE) [12][13][14][15][16][17][18][19][20][21][22].…”

Synthesis of Bis(amino alcohol)oxalamides and Their Usage for the Preconcentration of Trace Metals by Cloud Point Extraction

“…1,2 Due to the low concentration of trace elements and interfering effects of the major components of the initial sample matrix, a preconcentration/separation technique is generally necessary prior to atomic absorption spectrometry. For this purpose, various analytical methods have been used, such as adsorption on activated carbon, 3,4 co-precipitation, 5,6 column extraction, 7,8 ion-selective electrode 9,10 liquid-liquid extraction (LLE), 11 and cloud-point extraction (CPE). [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] Cloud-point extraction (CPE), employed in analytical chemistry to separate and preconcentrate organic compounds and metal ions, has been well reviewed.…”

<b>Preconcentration and extraction of copper(II) on activated carbon using ethyl-2-quinolyl-&beta; (<i>p</i>-carboxyphenyl hydrazone)dioxo propionate</b>

“…Among them, solid phase extraction due to advantages such as high efficiency, simplicity, rapidity, and low consumption of material has found increasing application in the enrichment of trace metal ions and elimination of matrix interference prior to FAAS analysis [13][14][15][16][17][18][19][20][21][22][23]. Use of various types of sorbents for separation and/or preconcentration of metal ions has been gaining popularity because of its high concentrating ability and simple operation.…”