Selective cloud point extraction and graphite furnace atomic absorption spectrometric determination of molybdenum (VI) ion in seawater samples

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].…”

“…Moreover, It is simple, cheap, highly efficient, fast, and of lower toxicity than those extractions that use organic solvents. This method has been applied for extraction and preconcentration of some metal ions such as Cu, Ni, Co and Zn in water samples [12], Ag, Zn, and Pb in environmental samples [13], Mo in sea water [14], Cd, Pb, Pd and Ag in environmental samples [15], Cr, Pb, Cu, Ni, Bi, and Cd in environmental samples [16], Cd, Cu, Co and Ni in water [17], U, Th, Zr and Hf in aqueous samples [18], Be in water [19], La, Eu and Lu [20], Rh [21] and Yb, Gd, Eu, Sm, Sc, Ho in biological samples [22].…”

Combination of PbFE as an electrochemical sensor and cupferron as a complexing agent for the rapid determination of Mo(VI)

“…To date, various methods for the determination of molybdenum in environmental samples have been described. Among the available measurement techniques are located cloud point extraction coupled with flame atomic absorption spectrometry [7], graphite furnace atomic absorption spectrometry [8,9], cloud point extraction connected with graphite furnace atomic absorption spectrometry [10], inductively coupled plasma-atomic emission spectrometry [-11],inductively coupled plasma-mass spectrometry [12], spectrophotometry [13,14], and neutron activation analysis [15]. These methods have a number of advantages, first of all, excellent sensitivity and good selectivity, but they also have serious drawbacks which include expensive apparatus, pretreatment of real samples, and complicated procedures.…”

Determination of ultra-trace aluminum in human albumin by cloud point extraction and graphite furnace atomic absorption spectrometry

“…CPE coupled with GFAAS can obtain lower detection limit. In recent years, cloud point extraction as an extraction technique prior to the GFAAS determination of Pb [13], Cd [14], Mo [15], Au [16], Cr [17], V [18], Sb [19], Co [20], Tl [21] and Al [22,23] has been widely studied. However, the research work was mostly focused on water samples with simple matrix.…”