scholarly journals Evaluation of MIP-OES as a detector in DLLME procedures: application to Cd determination in water samples

2020 ◽  
Vol 35 (7) ◽  
pp. 1351-1359 ◽  
Author(s):  
Raquel Serrano ◽  
Guillermo Grindlay ◽  
Przemysław Niedzielski ◽  
Luis Gras ◽  
Juan Mora

This work evaluates the feasibility of coupling DLLME to MIP-OES for elemental analysis. To this end, the potential spectral and non-spectral interferences caused by different organic extractants on the emission signal in MIP-OES have been studied.

2018 ◽  
Vol 1 (2) ◽  
pp. 16-22
Author(s):  
Enetimi I. Seiyaboh ◽  
Tariwari C.N Angaye

Environmental impact of anthropogenic activities from industrial sources, have become a threat to biodiversity. Water samples were collected from rivers around the flow station, and analysed from some physicochemical parameters and hydrocarbon contents. Result of the physicochemistry was reported for: pH (6.58± 0.04 - 6.76±0.01), conductivity (168.30±13.98 - 194.57±3.78 µS/cm), conductivity 8.29±0.04 - 10.66±0.02 NTU, salinity (0.07±0.00 - 0.09± 0.00 mg/l), and Total Solids (83.96±1.49 - 103.66±0.60mg/l). Other elemental analysis includes: sulphates (2.43±0.01 - 4.28 ±0.02 mg/l), nitrates (0.19±0.01 - 0.28±0.01 mg/l), carbonates (1.14±0.07 - 2.06±0.07 mg/l), calcium (8.45±0.10 - 11.70±0.25 mg/l), magnesium (1.14±0.07 - 2.56±0.03 mg/l), and sodium (4.37±0.15 - 5.62±0.03 mg/l). The values of THC and TPH were 0.92±0.08 - 1.51±0.03, and 0.37±0.13 - 0.76±0.07 mg/l respectively. Generally, the result indicated mild level of contamination in terms of Hydrocarbon contents. However, diagnostic data emerging for physicochemistry and some elemental property indicates the water is unfit for consumption. Notwithstanding, the order on contamination were reported as; downstream > midstream > upstream. Therefore this study concludes that there should be frequent monitoring of the recipient water bodies associated with the flow station in order to check anthropogenic activities, and conserve biodiversity.


2020 ◽  
Vol 35 (10) ◽  
pp. 2113-2131 ◽  
Author(s):  
Alexandre Müller ◽  
Dirce Pozebon ◽  
Valderi L. Dressler

The N2-sustained microwave-induced plasma optical emission spectrometry (N2-MIP OES) has been increasingly applied for metals and non-metals determination in different fields.


2012 ◽  
Vol 22 (03n04) ◽  
pp. 259-269 ◽  
Author(s):  
RAJBIR KAUR ◽  
A. KUMAR ◽  
B. P. MOHANTY ◽  
MUMTAZ OSWAL ◽  
NAVNEET KAUR ◽  
...  

Water is the most important source of minerals for both human beings and animals. But at the same time, water is also a source of disease due to the contamination of various elements. Therefore, knowledge of the elemental content of water is important. In this work, water samples were collected from areas around Chandigarh and Bathinda district, Panjab, India. Proton-induced X-ray emission (PIXE) and proton-induced gamma-ray emission (PIGE) techniques were used for the determination of heavy and light trace elements, respectively, in wide varieties of water samples. A large number of elements, namely F, Na, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Cu, Zn, As, Pb , and U were detected in the samples and results are discussed.


Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1662
Author(s):  
Javier Silva ◽  
Mariela Pistón

An on-line preconcentration system for the simultaneous determination of Copper (Cu) and manganese (Mn) in water samples was developed and coupled to a microwave-induced plasma optical emission spectrometer (MIP OES). The flow injection system was designed with a minicolumn packed with sisal fiber (Agave sisalana). A multivariate experimental design was performed to evaluate the influence of pH, preconcentration time, and eluent concentration. Optimal conditions for sample preparation were pH 5.5, preconcentration time was 90 s, and HCl 0.5 mol L−1 was the eluent. The main figures of merit were detection limits 3.7 and 9.0 µg L−1 for Cu and Mn, respectively. Precision was expressed as a relative standard deviation better than 10%. Accuracy was evaluated via spiked recovery assays with recoveries between 75–125%. The enrichment factor was 30 for both analytes. These results were adequate for water samples analysis for monitoring purposes. The preconcentration system was coupled and synchronized with the MIP OES nebulizer to allow simultaneous determination of Cu and Mn as a novel sample introduction strategy. The sampling rate was 20 samples/h. Sisal fiber resulted an economical biosorbent for trace element preconcentration without extra derivatization steps and with an awfully time of use without replacement complying with the principles of green analytical methods.


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