Simultaneous Analysis of 6 Trace Elements in Pomegranate (Punica granatum l.) Juice by ICP-MS after Microwave-Assisted Digestion

2014 ◽  
Vol 998-999 ◽  
pp. 307-311 ◽  
Author(s):  
Li Ping Sun ◽  
Yan Lei Yin ◽  
Chao Wang ◽  
Lei Wang
Keyword(s):  
Trace Elements ◽  
Punica Granatum ◽  
Pomegranate Juice ◽  
Acid Digestion ◽  
Microwave Assisted ◽  
Icp Ms ◽  
Essential Trace Elements ◽  
Punica Granatum L ◽  
Good Agreement

The concentrations of essential trace elements such as Mn, Cu, Zn, Fe, Li and Se were determined in pomegranate juice at distinct maturity stages by ICP-MS following microwave-assisted acid digestion. The digestion efficiency was evaluated on the basis of the determination of residual carbon content and residual acidity. 4 mL of 16 mol/L HNO3 + 2 mL of 30% m/m H2O2 solutions were used for the efficient digestion of 3.0 mL pomegranate juice, with a considerable reduction in the residual acidity when compared with a procedure that employed different Digestion procedures. The good agreement between the observed and certified concentrations of the National Tea Standard (China, GBW10016) and the Apple Standard (China, GBW10019) indicate that the developed analytical method was well suited to determine the trace elements contents in similar matrices.

scholarly journals Determination of toxic and essential trace elements in serum of healthy and hypothyroid respondents by ICP-MS: A chemometric approach for discrimination of hypothyroidism

2018 ◽  
Vol 48 ◽  
pp. 134-140 ◽  
Author(s):  
Aleksandar Stojsavljević ◽  
Jelena Trifković ◽  
Zorica Rasić-Milutinović ◽  
Dragana Jovanović ◽  
Gradimir Bogdanović ◽  
...  
Keyword(s):  
Trace Elements ◽  
Icp Ms ◽  
Essential Trace Elements ◽  
Chemometric Approach

Determination of Trace Elements in Water by Inductively Coupled Plasma–Mass Spectrometry: Collaborative Study

1994 ◽  
Vol 77 (4) ◽  
pp. 1004-1023 ◽  
Author(s):  
J E Longbottom ◽  
T D Martin ◽  
K W Edgell ◽  
S E Long ◽  
M R Plantz ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Acid Digestion ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Relative Standard ◽  
Nitric Acid Digestion ◽  
Plasma Mass Spectrometry

Abstract A joint U.S. Environmental Protection Agency (U.S. EPA)—AOAC interlaboratory method validation study was conducted on U.S. EPA method 200.8, Determination of Trace Elements in Waters and Wastes by Inductively Coupled Plasma–Mass Spectrometry. The purpose of the study was to determine and compare the mean recovery and precision of the inductively coupled plasma–mass spectrometry (ICP–MS) analyses for 20 trace elements in reagent water, drinking water, and groundwater. The formal study was based on Youden’s nonreplicate plan for collaborative tests of analytical methods. The test waters were spiked with the 20 trace elements at 6 concentration levels in the 0.8–200 μg/L range, prepared as 3 Youden pairs. Thirteen collaborators spiked 100 mL aliquots of the test waters, acidified them with 1 mL concentrated HNO3 and 0.5 mL concentrated HCl, reduced the volume to 20 mL by heating in an open beaker at 85°C, refluxed them for 30 min at 95°C, and diluted them to 50 mL. After centrifuging or settling the samples, a 20 mL portion of the supernatant was diluted to 50 mL and analyzed by ICP–MS. Related experiments evaluated the method performance in wastewater and wastewater digestate at a single concentration pair, and an alternative nitric acid digestion procedure. Mean recoveries for reagent water, drinking water, and groundwater were generally 95–105% with between-laboratory relative standard deviations about 4–8%. The method also worked well with wastewaters and digestate, with between-laboratory relative standard deviations averaging 8% and recoveries averaging 100%. Recoveries of silver, however, were low in all matrixes at concentrations over 100 μg/L. The nitric acid digestion procedure was comparable in accuracy and precision to the mixed-acid digestion in U.S. EPA method 200.8. The method was adopted first action by AOAC INTERNATIONAL.

Development of a microwave-assisted ultraviolet digestion method for biodiesel and subsequent trace elements determination by SF-ICP-MS

2018 ◽  
Vol 33 (6) ◽  
pp. 1049-1056 ◽  
Author(s):  
P. S. Barela ◽  
J. P. Souza ◽  
J. S. F. Pereira ◽  
J. C. Marques ◽  
E. I. Müller ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Digestion Method ◽  
Inductively Coupled ◽  
Microwave Assisted ◽  
Icp Ms ◽  
Subsequent Determination ◽  
Plasma Mass Spectrometry

A microwave-assisted ultraviolet digestion (MW-UV) method for biodiesel is proposed for subsequent determination of Ba, Co, Cr, Cu, Mn, Ni, Pb, Sr, and V by sector field inductively coupled plasma mass spectrometry (SF-ICP-MS).

Determination of trace elements in liquid aspartame sweeteners by ICP OES and ICP-MS following acid digestion

2007 ◽  
Vol 159 (3-4) ◽  
pp. 241-246 ◽  
Author(s):  
Rafael A. de Sousa ◽  
Anderson S. Ribeiro ◽  
Mariana A. Vieira ◽  
Adilson J. Curtius ◽  
Nivaldo Baccan ◽  
...  
Keyword(s):  
Trace Elements ◽  
Icp Oes ◽  
Acid Digestion ◽  
Icp Ms

Flux-free fusion technique using a boron nitride vessel and rapid acid digestion for determination of trace elements by ICP-MS

2016 ◽  
Vol 31 (11) ◽  
pp. 2261-2271 ◽  
Author(s):  
Zhian Bao ◽  
Hongfu Zhang ◽  
Honglin Yuan ◽  
Ye Liu ◽  
Kaiyun Chen ◽  
...  
Keyword(s):  
Trace Elements ◽  
Boron Nitride ◽  
Acid Digestion ◽  
Fusion Technique ◽  
Icp Ms

A flux-free fusion technique using a boron nitride vessel and rapid acid digestion is presented for the determination of trace elements by ICP-MS.

scholarly journals Determination of Metals in Tree Rings by ICP-MS Using Ash from a Direct Mercury Analyzer

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2126
Author(s):  
Byunggwon Jeon ◽  
James V. Cizdziel
Keyword(s):  
Tree Rings ◽  
Loblolly Pine ◽  
Acid Digestion ◽  
Shortleaf Pine ◽  
Volatile Elements ◽  
Microwave Assisted ◽  
Direct Mercury Analyzer ◽  
Icp Ms ◽  
Mercury Analyzer

Elemental profiles in cores of tree trunks (bole wood) have been used for environmental monitoring and reconstruction of metal pollution history. Mercury (Hg) is a global pollutant that can be accurately measured in tree rings in a simple and pragmatic fashion using a direct mercury analyzer (DMA) that is based on thermal decomposition, amalgamation, and atomic absorption spectrophotometry. In this feasibility study, we demonstrate that the ash remaining after the DMA analyses can be used to quantify a wide range of other non-volatile elements (Ba, Be, Co, Cr, Cu, Fe, Ga, Mg, Mn, Ni, Pb, Sr, Th, and U) in that same sample of wood by inductively coupled plasma mass spectrometry (ICP-MS) after microwave-assisted acid digestion. Other elements (Ag, Cd, Cs, Rb, Tl, and V) exhibited poor recoveries, possibly due to losses during sample preparation. We assessed the accuracy with reference materials, spikes, and by comparison with EPA Method 3052 (Microwave Assisted Acid Digestion of Siliceous and Organically Based Matrices). For the first group of elements (deemed suitable for the method), recoveries ranged between 80% and 120% and the relative standard deviation was generally < 15%, indicating acceptable precision. We applied the method to five species of trees: eastern red cedar (Juniperus virginiana), loblolly pine (Pinus taeda), shortleaf pine (Pinus echinata), white oak (Quercus alba), and tulip poplar (Liriodendron tulipifera) from Holly Springs National Forest in north Mississippi, USA. Mercury concentrations (ng/g ± SE) were highest in the cedar (1.8 ± 0.3; n = 5), followed by loblolly pine (1.6 ± 0.3, n = 3), shortleaf pine (1.2 ± 0.2; n = 3), oak (1.1 ± 0.2; n = 5), and poplar (0.5 ± 0.1; n = 5). Concentrations of other elements were generally Fe > Mg > Ba ≈ Sr ≈ Mn > Cr ≈ Cu > Ni ≈ Rb > Co > Ga ≈ Ag, with the other elements generally below the method detection limit (MDL). Overall, we showed that the DMA can be used to not only determine total Hg in segments of tree core, but can serve as the ashing step in the preparation of wood for ICP-MS analysis, thus allowing the determination of non-volatile elements along with Hg in the very same sample.

Sign in / Sign up

Export Citation Format

Share Document