scholarly journals A modified ZSM-5 zeolite/Fe2O3 composite as a sorbent for magnetic dispersive solid-phase microextraction of cadmium, mercury and lead from urine samples prior to inductively coupled plasma optical emission spectrometry

2018 ◽  
Vol 33 (5) ◽  
pp. 856-866 ◽  
Author(s):  
Paola Baile ◽  
Lorena Vidal ◽  
Miguel Ángel Aguirre ◽  
Antonio Canals
Keyword(s):  
Magnetic Nanoparticles ◽  
Analytical Method ◽  
Inductively Coupled Plasma ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Optical Emission ◽  
Urine Samples ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

An analytical method in which a zeolite decorated with Fe2O3 magnetic nanoparticles is employed to determine Cd, Hg and Pb in urine samples.

Preparation of Urine Samples for Trace Metal Determination: A Study with Aluminium Analysis by Inductively Coupled Plasma Optical Emission Spectrometry

1998 ◽  
Vol 35 (2) ◽  
pp. 245-253 ◽  
Author(s):  
T J Burden ◽  
M W Whitehead ◽  
R P H Thompson ◽  
J J Powell
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Urine Samples ◽  
Emission Spectrometry ◽  
Individual Sample ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry ◽  
Pooled Sample

Urinary analysis of trace metals forms a significant role in clinical chemistry, but the optimal preparation and analysis of urine samples has not been investigated. Human urine is generally supersaturated with dissolved solids. Therefore, samples often precipitate following collection. X-ray microanalysis showed that this precipitate was predominantly rich in calcium and phosphorus but could include some trace metals from urine, potentially lowering their concentrations in solution. Hence, the precipitate must be fully redissolved for accurate analysis of trace metals in urine. Methods are emphasized for the best collection and preparation of urine samples for subsequent trace metal analysis; in this work inductively coupled plasma optical emission spectrometry (ICPOES) was used for the analysis of aluminium. For optimal accuracy, peak profiles were collected over 396.147 nm-396.157 nm. Urinary aluminium levels were investigated from 10 healthy volunteers and concentrations were obtained using either aqueous, pooled or individual urine-based standard curves. Since urine has a highly variable matrix, individual sample-based standards, which are unique to that particular sample, gave the most accurate results. However, where sample size is small or sample numbers are unfeasibly large, pooled sample-based standards give good approximations to within 15% and, with appropriate validation, other elements as internal standards could also be used for approximations. Aqueous standards should be avoided. Spike-recovery experiments confirmed these data since individual sample based standards showed optimal recovery [99.3 (4.4)%], while pooled sample-based standards were a close proxy [101.6 (9.2)%] but aqueous standards were inappropriate [137.4 (12.8)%]. Postprandial urinary aluminium levels of the 10 volunteers were [7.2 (3.7)μg/L] after analysis using individual sample-based standard curves.

Development and Validation of an Analytical Method for Quantification of Arsenic and Antimony in Liposomes Using Inductively Coupled Plasma-Optical Emission Spectrometry

2013 ◽  
Vol 96 (4) ◽  
pp. 771-775
Author(s):  
Priscila G Reis ◽  
Adriana T Abreu ◽  
Andrea G Guimarães ◽  
Mônica C Teixeira ◽  
Jacqueline de Souza ◽  
...  
Keyword(s):  
Analytical Method ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Pharmaceutical Dosage Forms ◽  
Inductively Coupled ◽  
Endemic Diseases ◽  
Plasma Optical Emission Spectrometry ◽  
Development And Validation

Abstract Arsenic and antimony compounds are used to treat endemic diseases, such as cancer, leishmaniasis, and schistosomiasis, in spite of their toxicity. Several studies seeking the development and characterization of nanocarrier systems such as liposomes are being carried out with the aim of developing new drug delivery systems and minimizing the toxicity of these drugs. However, the lack of reference methods to quantify these semimetals within a liposomal matrix hinders the QC of these formulations. Therefore, the validation of an analytical method for arsenic and antimony quantification in liposomal matrix by inductively coupled plasma-optical emission spectrometry is presented here. The linearity, specificity, LOD, LOQ, accuracy, and precision were determined according to the International Conference on Harmonization norms and the Brazilian Health Surveillance Agency (Resolution 899). The LOD values were 0.02 and 0.06 mg/L for antimony and arsenic, respectively. The LOQ for both was 3.0 mg/L, with an adequate accuracy within 98.26 and 101.32% for different levels of antimony and 99.98 and 100.36% for arsenic. Precision (CV) was lower than 5.0%. The developed and validated method was shown to be reproducible for quantification of arsenic and antimony in liposome pharmaceutical dosage forms.

Determination of trace Bi by ICP-OES after magnetic solid phase extraction with fullerene C60 modified γ-Fe2O3 superparamagnetic iron oxide nanoparticles

2015 ◽  
Vol 7 (24) ◽  
pp. 10306-10311 ◽  
Author(s):  
Ersin Kılınç
Keyword(s):  
Inductively Coupled Plasma ◽  
Solid Phase ◽  
Superparamagnetic Iron Oxide ◽  
Optical Emission ◽  
Magnetic Solid Phase Extraction ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry ◽  
Magnetic Solid

In this research, a procedure for the preconcentration of Bi at trace levels in milk samples prior to inductively coupled plasma optical emission spectrometry (ICP-OES) is proposed.

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