scholarly journals Mineral Microelements in Walnut Oil and their Role in the Prevention of Cardiovascular Diseases

2020 ◽  
Vol 71 (5) ◽  
pp. 380-389
Author(s):  
Maria Rada ◽  
Delia Mira Berceanu-Vaduva ◽  
Milan Daniel Velimirovici ◽  
Simona Dragan ◽  
Bianca Berceanu-Vaduva ◽  
...  
Keyword(s):  
Cardiovascular Diseases ◽  
Inductively Coupled Plasma ◽  
Mineral Elements ◽  
Daily Consumption ◽  
Walnut Oil ◽  
Inductively Coupled ◽  
Low Concentrations ◽  
Icp Ms ◽  
Toxic Potential ◽  
Dietary Food

Currently, the literature data regarding the concentration of microelements in walnut oil are low, most of them being related to their presence in the walnut core. The purpose of this study was to determine the distribution of essential and toxic mineral elements from walnut oil marketed in Timisoara (Romania) and to evaluate the mineral contribution of this important food in the prevention of cardiovascular diseases. The paper presents the results obtained in determining the content of some essential and toxic microelements of the native walnut oil, used as dietary food. The results obtained from the analysis of the essential and toxic mineral elements, by Inductively Coupled Plasma - Mass Spectrometer (ICP-MS) method, reveal that the walnut oil samples analyzed contain noticeable amounts of: Fe (2,576 - 3,621 mg/kg), Mn (1,876 - 1,783 mg/kg), Zn (1,120 - 1,782 mg/kg), low Cu (0.185 - 0.226 mg/kg), Cr (0.088 - 0.154 mg/kg) and Ni (0.052 - 0.081 mg/kg) and very low Co (0.001 - 0.003 mg / kg). Pb and Cd, elements with pronounced toxic potential, were identified in very low concentrations: 0.020 - 0.031 mg/kg Pb, respectively 0.001 - 0.002 mg /kg Cd. The results obtained when evaluating the mineral intake show that, under the conditions of this experiment, a daily consumption of 30 g of walnut oil cannot be considered as the only additional source of microelements.

scholarly journals Chemometric Analysis of Elemental Fingerprints for GE Authentication of Multiple Geographical Origins

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Lu Xu ◽  
Qiong Shi ◽  
Si-Min Yan ◽  
Hai-Yan Fu ◽  
Shunping Xie ◽  
...  
Keyword(s):  
Classification Accuracy ◽  
Inductively Coupled Plasma ◽  
Chinese Herb ◽  
Mineral Elements ◽  
Gastrodia Elata ◽  
Inductively Coupled ◽  
Pattern Recognition Methods ◽  
Icp Ms ◽  
Chemical Pattern ◽  
Plasma Mass Spectrometry

The feasibility of combining elemental fingerprints and chemical pattern recognition methods for authentication of the geographical origins of a Chinese herb, Gastrodia elata BI. (GE), was studied in this paper. A total of 210 GE samples were collected from 7 different producing areas. The levels of 15 mineral elements in GE, including Zn, Cd, Co, Cr, Cu, Ca, Mg, Mn, Mo, Ni, Pb, Sr, Fe, Na, and K, were determined using inductively coupled plasma mass spectrometry (ICP-MS). Using the autoscaled data of elemental fingerprints and partial least-squares discriminant analysis (PLSDA), two chemometrics strategies for multiclass classifications, One-Versus-Rest (OVR) and One-Versus-One (OVO), were studied and compared in discrimination of GE geographical origins. As a result, OVR-PLSDA and OVO-PLSDA could achieve the classification accuracy of 0.672 and 0.925, respectively. The results indicate that mineral elemental fingerprints coupled with chemometrics can provide a useful alternative method for simultaneous discrimination of multiple GE geographical origins.

scholarly journals Quantitative Evaluation of 28 Mineral Elements by Inductively Coupled Plasma/Mass Spectrometry and Its Application in Source Identification of Indian Opium

2005 ◽  
Vol 88 (5) ◽  
pp. 1469-1484 ◽  
Author(s):  
Mohanakrishna R Mudiam ◽  
Sanjukta A Kumar ◽  
Sudhershanan Mahadevan ◽  
Priyankar Ghosh ◽  
Rajendra K Sarin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Analytical Data ◽  
Mineral Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Geographical Regions ◽  
Plasma Mass Spectrometry ◽  
Elemental Data

Abstract An analytical method based on inductively coupled plasma/mass spectrometry (ICP/MS) was developed for the determination of 28 mineral elements (Cr, Mn, Co, Ni, Cu, Zn, Ga, Sr, Cd, Ag, Ba, Pb, Bi Y, La, Ce, Nd, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in Indian opium samples. The detection limits were found to be in the range of 0.0008–0.45 ng/mL. The recoveries of spiked samples for each element were found to be in the range of 83–106%, with a precision of less than 9%. A total of 124 opium samples from India were analyzed for the distribution pattern of the 28 mineral elements. Quantitative elemental data were subjected to chemometric analysis in order to determine an optimal classifier to evaluate the source of Indian opium. The study indicated that mineral elements might not be the suitable discriminators for the discrimination of licit opium-growing divisions of India. However, the methodology developed and the analytical data on elemental profile may find important forensic application in discriminating Indian opium with that of licit and illicit opium originating from different geographical regions of world.

INFLUENCE OF ORGANIC MATTER ON Re-Os DATING OF SULFIDES: INSIGHTS FROM THE GIANT JINDING SEDIMENT-HOSTED Zn-Pb DEPOSIT, CHINA

2021 ◽  
Author(s):  
Shiqiang Huang ◽  
Yucai Song ◽  
Limin Zhou ◽  
David L. Leach ◽  
Zhaoshan Chang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Inductively Coupled Plasma ◽  
Elemental Mapping ◽  
Bacterial Reduction ◽  
Inductively Coupled ◽  
Hydrocarbon Reservoir ◽  
Low Concentrations ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Two Stages

Abstract This study evaluates the effect of organic matter impurities on pyrite Re-Os dating, using the giant Jinding sediment-hosted Zn-Pb deposit in China as an example. The Jinding deposit is hosted in a Paleocene evaporite dome that was a hydrocarbon reservoir before mineralization. Pyrite in Jinding formed in two stages: pre-ore (py1) and syn-ore (py2). Two types of py1 are recognized, organic matter-free and organic matter-bearing. The organic matter-free py1 contains homogeneously distributed low concentrations of Re (<2.5 ppb) that yields an isochron age of 51 ± 1 Ma (mean square of weighted deviates [MSWD] = 3.2). This date is interpreted to be the age of py1 formation. The organic matter-bearing py1 contains organic matter inclusions trapped during py1 growth and synchronous with bacterial reduction of sulfate. Elemental mapping with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) shows that the organic matter inclusions have Re signals 1 to 4 orders of magnitude higher than those of pyrite, revealing that organic matter is the major host for Re. Such pyrite separates contain 37 to 1,145 ppb Re. The Re-Os data of organic matter-bearing py1 yield an isochron age of 72.9 ± 0.5 Ma (MSWD = 0.2). This age is older than the actual py1 formation age of 51 ± 1 Ma but overlaps with previously dated bitumen Re-Os isochron age of 68 ± 5 Ma at Jinding, indicating that organic matter inclusions can significantly influence the Re-Os dates of pyrite and likely other sulfides. This study demonstrates that in order to date sulfides formed in organic-rich environments using the Re-Os method, it is necessary to determine the distribution of Re in samples using detailed petrography and LA-ICP-MS trace element mapping plus spot analysis.

scholarly journals A rapid and sensitive IC-ICP-MS method for determining selenium speciation in natural waters

2018 ◽  
Vol 96 (8) ◽  
pp. 795-802 ◽  
Author(s):  
Mark W. Donner ◽  
Tariq Siddique
Keyword(s):  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Natural Waters ◽  
Hydrogen Gas ◽  
Aquatic Systems ◽  
Reaction Cell ◽  
Inductively Coupled ◽  
Accuracy And Precision ◽  
Low Concentrations ◽  
Icp Ms

Selenium (Se) is an element monitored by water quality agencies worldwide. The challenge of assessing its presence in aquatic systems is its low concentrations (parts per trillion) and the need for determining its chemical speciation. A method was developed using an ion chromatograph (IC) paired with a quadrupole inductively coupled plasma mass spectrometer (ICP-MS) equipped with a hydrogen reaction cell to provide analysts with a rapid and sensitive method to measure Se speciation with suitable accuracy and precision. The Se species selenite (SeIV) and selenate (SeVI) were separated within a 5 min span using dilute nitric acid as a mobile phase in a step-wise gradient (50–400 mmol L−1) and quantified using 80Se isotope that yielded low limits of detection (<10 ng L−1). Spectral interference from plasma generated diatomic argon ions (40Ar2+; m/z = 80) on 80Se was eliminated by hydrogen gas (H2) in the reaction cell. Polyatomic 79Br1H+ (m/z = 80) did not interfere with 80Se for quantification of common aquatic Se species (SeVI and SeIV) due to different column retention times. Two organic species (methylselenocysteine and selenomethionine) commonly found in aquatic and terrestrial plant tissues were also tested to rule out possible chromatographic interference and explore the potential application to biological samples. Urban rainwater and Canadian river water samples were analyzed for Se species to demonstrate the applicability of the method. Owing to its ability to rapidly determine Se species in water samples at environmentally relevant concentrations, the method may be useful for monitoring agencies to routinely measure Se species in freshwater aquatic systems.

scholarly journals Nutritional Composition and Mineral Elements Content Analyses of Lonicera fulvotomentosa Hsu et S. C. Cheng Grown in China

2021 ◽  
Author(s):  
Xianghui Jiang ◽  
Longqian Xiao
Keyword(s):  
Chemical Composition ◽  
Caffeic Acid ◽  
Inductively Coupled Plasma ◽  
Crude Protein ◽  
Mineral Elements ◽  
Nutritional Composition ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Karst Landform ◽  
Candidate Molecule

Abstract Lonicera fulvotomentosa Hsu et S. C. Cheng (L. fulvotomentosa), a vine shrub found in Southwestern China, is used for treating epidemic fever and infectious diseases, such as SARS and Avian Influenza. Here, we investigated the chemical composition and nutritional content of dried flowers of L. fulvotomentosa grown in yellow loam and Karst landform soil in Guizhou, China. The moisture content in all samples varied from 3.25 to 3.63%, lipids from 7.76 to 9.93%, fiber from 6.93 to 7.34%, ashes from 12.32 to 12.76%, crude protein from 7.85 to 8.53%, and carbohydrates from 56.21 to 59.77%. Using inductively coupled plasma-mass spectroscopy (ICP-MS), the predominant mineral elements in the dried flowers were found to be calcium (297.34-351.26 mg/kg), potassium (132.56-140.37 mg/kg), iron (37.77–41.25 mg/kg), and magnesium (9.47–11.36 mg/kg). Also, HPLC identified flavonoids (kaempferol, rutin, quercetin, luteolin, and apigenin) and phenolic acids (caffeic acid, gallic acid, and chlorogenic acid). Thus, the chemical composition of L. fulvotomentosa was similar to that of Lonicera japonica Thunb. (L. japonica). Thus, it could be used as an alternative to L. japonica. Our results showed that the dried flower of L. fulvotomentosa had an extremely high content of chlorogenic acids and caffeic acid, which could be developed as a candidate molecule as HIV inhibitors.

scholarly journals Detection of Thallium and Uranium in Well Water and Biological Specimens of an Eastern Croatian Population

2013 ◽  
Vol 64 (3) ◽  
pp. 385-394 ◽  
Author(s):  
Mario Ćurković ◽  
Laszlo Sipos ◽  
Dinko Puntarić ◽  
Katarina Dodig-Ćurković ◽  
Nela Pivac ◽  
...  
Keyword(s):  
Drinking Water ◽  
Inductively Coupled Plasma ◽  
Local Population ◽  
Inductively Coupled ◽  
Low Concentrations ◽  
Icp Ms ◽  
Occupational And Environmental Exposure ◽  
Plasma Mass Spectrometry ◽  
Local Water ◽  
Almost All

Abstract Using inductively-coupled plasma mass spectrometry (ICP-MS), we measured the concentrations of thallium and uranium in local water resources from three villages (Ćelije, Draž, and Potnjani) in eastern Croatia, with the aim to determine if they were associated with the levels of these same elements in the serum, urine, and hair collected from the residents of this area. The exposure of the local population to thallium and uranium through drinking water was generally low. ICP-MS was capable of measuring the levels of both of the elements in almost all of the analysed samples. Although there were differences in the concentrations of both elements in water samples and biological specimens taken from the residents, they did not reach the maximum contaminant level in any of the four sample types studied. Although hair was previously reported as an excellent indicator of occupational and environmental exposure to various elements, our study did not confirm it as a reliable biological material for tracing thallium and uranium levels, mainly due to the very low concentrations of these elements, often well below the detection limit. However, our results have shown that the concentration of thallium and uranium in drinking water can be effectively traced in urine samples.

Simultaneous Analysis of Iodine and Bromine Species in Infant Formula using HPLC-ICP-MS

2019 ◽  
Vol 102 (4) ◽  
pp. 1199-1204 ◽  
Author(s):  
Jenny Nelson ◽  
Lawrence Pacquette ◽  
Shuofei Dong ◽  
Michiko Yamanaka
Keyword(s):  
Infant Formula ◽  
Inductively Coupled Plasma ◽  
Accurate Determination ◽  
Simultaneous Analysis ◽  
Triple Quadrupole ◽  
Inductively Coupled ◽  
Low Concentrations ◽  
Icp Ms ◽  
Halogen Species

Abstract Background: A fast and sensitive method for the simultaneous analysis of iodine and bromine species in infant formula was developed using HPLC–inductively coupled plasma–MS (HPLC-ICP-MS). Method: To determine the four halogen species [iodide (I−), iodate &lt;inline-formula&gt;&lt;mml:math display="inline"&gt;&lt;mml:mrow&gt;&lt;mml:mo&gt;(&lt;/mml:mo&gt;&lt;mml:mrow&gt;&lt;mml:msubsup&gt;&lt;mml:mrow&gt;&lt;mml:mi mathvariant="normal"&gt;IO&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mn&gt;3&lt;/mml:mn&gt;&lt;mml:mo&gt;−&lt;/mml:mo&gt;&lt;/mml:msubsup&gt;&lt;/mml:mrow&gt;&lt;mml:mo&gt;)&lt;/mml:mo&gt;&lt;/mml:mrow&gt;&lt;/mml:math&gt;&lt;/inline-formula&gt;, bromide (Br−), and bromate &lt;inline-formula&gt;&lt;mml:math display="inline"&gt;&lt;mml:mrow&gt;&lt;mml:mo&gt;(&lt;/mml:mo&gt;&lt;mml:mrow&gt;&lt;mml:msubsup&gt;&lt;mml:mrow&gt;&lt;mml:mi mathvariant="normal"&gt;BrO&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mn&gt;3&lt;/mml:mn&gt;&lt;mml:mo&gt;−&lt;/mml:mo&gt;&lt;/mml:msubsup&gt;&lt;/mml:mrow&gt;&lt;mml:mo&gt;)&lt;/mml:mo&gt;&lt;/mml:mrow&gt;&lt;/mml:math&gt;&lt;/inline-formula&gt;] in a milk-based Standard Reference Material and four commercially available infant formula products. Results: The four halogen species were baseline separated in less than 6.5 min using an anion exchange resin column and 5.0 mM NaH2PO4 / 15.0 mM Na2SO4 / 5.0 mM EDTA (pH 7.0) mobile phase. Following separation, the halogen species were detected by measuring m/z 79 for Br and m/z 127 for I using a triple quadrupole–ICP-MS. The instrument was operated in single quadrupole mode with helium cell gas. Excellent linearity (R = 0.9999 or better) was obtained for all four species with calibration standards ranging from 0 to 100 ppb. The LOD for I−, &lt;inline-formula&gt;&lt;mml:math display="inline"&gt;&lt;mml:msubsup&gt;&lt;mml:mrow&gt;&lt;mml:mi mathvariant="normal"&gt;IO&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mn&gt;3&lt;/mml:mn&gt;&lt;mml:mo&gt;−&lt;/mml:mo&gt;&lt;/mml:msubsup&gt;&lt;/mml:math&gt;&lt;/inline-formula&gt;, Br−, and &lt;inline-formula&gt;&lt;mml:math display="inline"&gt;&lt;mml:msubsup&gt;&lt;mml:mrow&gt;&lt;mml:mi mathvariant="normal"&gt;BrO&lt;/mml:mi&gt;&lt;/mml:mrow&gt;&lt;mml:mn&gt;3&lt;/mml:mn&gt;&lt;mml:mo&gt;−&lt;/mml:mo&gt;&lt;/mml:msubsup&gt;&lt;/mml:math&gt;&lt;/inline-formula&gt; were all less than 0.67 μg/kg. To test the suitability of the method for the accurate determination of low concentrations of the four species in infant formula samples, a spike recovery test was carried out at 20 and 40 μg/kg into the diluted infant formula samples. Conclusions: Total elemental determinations of iodine and bromine were also performed using the triple quadrupole–ICP-MS without HPLC.

scholarly journals Assessment of Heavy Metal and Mineral Levels in Hair Samples from Dogs with Mammary Neoplasms

2018 ◽  
Vol 75 (1) ◽  
pp. 1 ◽  
Author(s):  
Emanuela BADEA ◽  
Gheorghe Valentin GORAN ◽  
Cristina ȚOCA ◽  
Victor CRIVINEANU
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Mineral Elements ◽  
Inductively Coupled ◽  
Normal Tissues ◽  
Mammary Neoplasms ◽  
Icp Ms ◽  
Hair Samples ◽  
Plasma Mass Spectrometry ◽  
Mineral Levels

Neoplasms involve abnormal tissue growths developing in an uncoordinated, persistent manner, faster than adjacent normal tissues. Several researchers have studied the possible implications of heavy metals and mineral levels on human mammary neoplasms using hair analysis. The study’s objective was to assess the levels of heavy metals and other mineral elements in dogs suffering from mammary neoplasms. Hair samples were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). All analyzed elements registered higher levels in clinically healthy dogs. The interaction between health status and keeping conditions significantly influenced the levels of Al, Ca, Fe, Mg, Ni, Co, Pb, and V. Concurrently, dogs with mammary neoplasms living outdoors registered the highest levels for most minerals, compared to dogs with mammary neoplasms living indoors, suggesting a possible implication of pollution.

scholarly journals Analysis of seven mineral elements in cultivated fruiting bodies of Cordyceps militaris

2020 ◽  
Vol 185 ◽  
pp. 04019
Author(s):  
Li Fenglin ◽  
Li Li ◽  
Jiang Xiaokun ◽  
Liang Yan ◽  
Liu Hengwei
Keyword(s):  
Inductively Coupled Plasma ◽  
Microwave Digestion ◽  
High Sensitivity ◽  
Mineral Elements ◽  
Cordyceps Militaris ◽  
Fruiting Bodies ◽  
Fast Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

The objective of this study was to investigate the content of main mineral elements in cultivated fruiting bodies of Cordyceps militaris. Microwave digestion was used to pretreat Cordyceps militaris samples, and the content of seven mineral elements in Cordyceps militaris was determined by inductively coupled plasma mass spectrometry (ICP-MS). The results showed that the content of arsenic (As), lead (Pb) , cadmium (Cd), copper (Cu) , silver (Ag), zinc (Zn), and manganese (Mn) in cultivated fruiting bodies of Cordyceps militaris, respectively, is 0.0047 mg/kg, 0.22 mg/kg, 0.0041 mg/kg, 9.1 mg/kg, 0.024mg/kg, 5.2mg/kg, and 1.6 mg/kg. The content of heavy metals such as Pb, Cd and As is within the limits of Chinese national food safety standard. The method used in this study has the advantages of high sensitivity, fast analysis speed, and good reproducibility. It can be used for the determination of mineral elements in cultivated fruiting bodies of Cordyceps militaris.

Sign in / Sign up

Export Citation Format

Share Document