scholarly journals Investigations of metallic elements and phenolics in Chinese medicinal plants

2020 ◽  
Vol 18 (1) ◽  
pp. 1381-1390
Author(s):  
Pawel Konieczynski ◽  
Aleksej Zarkov ◽  
Agnieszka Viapiana ◽  
Mateusz Kaszuba ◽  
Lukasz Bielski ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Total Phenolic ◽  
Flame Atomic Absorption Spectroscopy ◽  
Inductively Coupled ◽  
Flame Atomic Absorption ◽  
Chinese Medicinal Plants ◽  
Fructus Lycii

AbstractTraditional Chinese Medicines (TCM) can be contaminated with heavy metals, and therefore, the aim of this study is to analyze the Fe, Mn, Zn, Cu, Cd, Pb, Cr, and phenolic compounds contents in TCM plants used against civilization diseases. Metals were determined by flame atomic absorption spectroscopy (FAAS) for Fe, Mn, Zn, and Cu and inductively coupled plasma-optical emission spectroscopy (ICP-OES) for Pb, Cd, and Cr. The total phenolic, flavonoid, and phenolic acid contents were determined by HPLC and UV/vis spectrometry. The contents of the studied elements were highest in Radix Rehmanniae, whereas lowest in Fructus Lycii and Fructus Crataegi. The studied metals were assayed in the decreasing order: Fe, Zn, Mn, Cu, Cr, Pb, and Cd. Radix Rehmanniae Glutinosae Preparata showed the lowest phenolic composition, while Fructus Lycii showed the richest content. Principal component analysis (PCA) revealed that the contents of ferulic acid, caffeic acid, rutin, and Cu, Cr, and Cd were among the most important factors responsible for the differentiation between the investigated medicinal plants. Cluster analysis (CA) showed that the TCM samples originating from the same botanical plant species were often found in the same cluster, which confirms the similar level of studied elements determined within the samples.

scholarly journals Preliminary Study of Microelements, Phenolics as well as Antioxidant Activity in Local, Homemade Wines from North-East Greece

Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1607
Author(s):  
Adriana Skendi ◽  
Maria Papageorgiou ◽  
Stefanos Stefanou
Keyword(s):  
Antioxidant Activity ◽  
Toxic Metals ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Total Phenolic ◽  
Inductively Coupled ◽  
North East ◽  
Plasma Optical Emission Spectrometry

The present study is aimed to analyze the composition of microelements in wines prepared by amateur winemakers in Drama region (recognized as Protected Geographical Indication (PGI)), especially the toxic ones, as well as the phenolic content and antioxidant activity of these wines since moderate wine consumption may contribute to health benefits to the consumers. A total of twenty-four wines, comprising sixteen red and eight white, were tested. The micro and macroelements were determined with ICP-OES (Inductively coupled plasma-optical emission spectrometry). Chromatic characteristics of wines and total phenolic and flavonoid compounds as well as their antioxidant activity with three different assays were determined spectrophotometrically. The amateur’s wines showed levels of contaminants with toxic metals less than the limits set from the International Organization of Vine and Wine (OIV). Moreover, toxic metals concentrations were comparable to those of European wines. The Principal Component Analysis discriminated wines into white and red and further distinguished the red wine into two groups depending on the Total Flavonoid content, antioxidant activity and color intensity. The moderate consumption of amateur wines can be recommended since their consumption is not harmful to the health, and they contain high amount of phenolics and flavonoids comparable or even higher to that of commercial wines.

Multielement determination in medicinal plants using electrothermal vaporization coupled to ICP OES

2017 ◽  
Vol 9 (23) ◽  
pp. 3497-3504 ◽  
Author(s):  
C. M. M. Santos ◽  
M. A. G. Nunes ◽  
A. B. Costa ◽  
D. Pozebon ◽  
F. A. Duarte ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Electrothermal Vaporization ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Multielement Determination ◽  
Elemental Determination ◽  
Plasma Optical Emission Spectrometry

Electrothermal vaporization (ETV) associated with inductively coupled plasma optical emission spectrometry (ICP OES) for elemental determination in medicinal herbs was investigated.

Determination of Titanium Content as Principal Components in Pyrotechnic Compositions Used for Fireworks and Firecrackers Based on Inductively Coupled Plasma Optical Emission Spectrometric Approach (ICP-OES)

2014 ◽  
Vol 608-609 ◽  
pp. 1010-1014
Author(s):  
Jun Yi Wu
Keyword(s):  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Titanium Content ◽  
High Accuracy ◽  
Good Precision ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Pyrotechnic Compositions

Inductively coupled plasma optical emission spectrometric approach (ICP-OES) is used to determine the titanium content as principal component in pyrotechnic compositions used for fireworks and firecrackers. Element of titanium is commonly found in titanium powder in pyrotechnic compositions in fireworks and firecrackers. Statistical analysis shows that titanium content in pyrotechnics is between 3% to 25%. Concept of this method: considering the weight of the sample is 400mg,constant volume is 1L and the concentration of titanium is between 1 mg/L to 100 mg/L in sample solution, the determination scope of the method for the titanium content would be between 0.25% to 25%.Further experiments proved that the fitting correlation coefficient of titanium calibration curve is 0.9996 or higher, recovery is 100.06%‒105.30%.The allowable differential value is 0.4% between two single tests under repeatable conditions. This method can completely satisfy the requirements of the fireworks and firecrackers industry with high accuracy and good precision.

scholarly journals Inorganic analysis of herbal drugs, Part I: Metal determination in herbal drugs originating from medicinal plants of the family Lamiacae

2005 ◽  
Vol 70 (11) ◽  
pp. 1347-1355 ◽  
Author(s):  
Slavica Razic ◽  
Svetlana Djogo ◽  
Latinka Slavkovic ◽  
Aleksandar Popovic
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Atomic Emission ◽  
Inorganic Analysis ◽  
Herbal Drugs ◽  
Inductively Coupled ◽  
Flame Atomic Absorption ◽  
The Family ◽  
Analyte Content

Elemental profiles of the total analyte content of major, minor and trace elements (Cu, Zn, Mn, Fe, K, Ca, Mg, Al, Ba and B) in 8 herbal drugs, originating from medicinal plants of the family Lamiacae, were determined. Flame atomic absorption/ emission spectroscopy (FAAS/FAES), inductively coupled plasma atomic emission spectroscopy (ICP-AES) and energy dispersive X-ray fluorescence (EDXRF) were applied, and the advantages and limitations of these techniques are also discussed. The whole procedure, from sample preparation via dissolution to the actual measurements, was validated by using CRM (NIST 1573a - Tomato leaves). The recovery values obtained were in the range 90.64 - 101.58 %. A high degree of similarity in their elemental profiles was noticed from the results of qualitative analysis, while quantitative analysis shows significant diversity due to the variety of the influencing sources. The medicinal plants investigated in this work contained Cu (5.92- 14.79 mg kg-1), Zn (15.0 - 43.0 mg kg-1), Mn (25 - 111 mg kg-1), Fe (74 - 546 mg kg-1), K (1.80 - 6.24 %), Ca (0.90 - 1.43 %), Mg (0.17 - 0.67 %), Al (49 - 378 mg kg-1), Ba (15.53 - 69.84 mg kg-1) and B (34.7 - 56.5 mg kg-1).

scholarly journals Identification of macroelements and microelements in the leaves of the Synadenium grantii Hook used as medicinal plant in the Brazil

10.3823/2328 ◽  
2017 ◽  
Vol 10 ◽  
Author(s):  
Igor Domingos De Souza ◽  
Ana Lucia Alves de Arruda ◽  
Anderson Fernandes da Silva ◽  
Rafaela Henriques Rosa ◽  
Marcos Antonio Ferreira Júnior ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Medicinal Plant ◽  
Inductively Coupled Plasma ◽  
Microwave Digestion ◽  
Optical Emission ◽  
Mato Grosso ◽  
Inductively Coupled ◽  
Legal Standards ◽  
Intake Level ◽  
Rural And Urban

Introduction: The Synadenium grantii Hook species is a medicinal plant of the Euphorbiaceae family and is popularly known in the Midwest regions of Brazil as leitosinha or janaúba. All the parts of Synadenium grantii Hook as stem, latex, leaves and flowers are used for the treatments of various disease, but no elemental composition has been done. Objective: The aim of present work was to measure the macroelements (K, Mg, Mo and P) and microelements (Cr, Cu, Fe, Mn, Mo, Zn, Si, Ni, Co, Cd and Al) in the leaves of medicinal plant Synadenium grantii Hook used in the treatment of diseases by rural and urban communities of the Campo Grande, State of Mato Grosso do Sul, Brazil. Method: The chemical digestions of samples were prepared utilizing HNO3 and H2O2 and microwave digestion system Speedwave Berghof, Germany. After digestion, the concentrations of the elements in leaves were determined by technique of Inductively Coupled Plasma – Optical Emission Spectrometer (ICP-OES) with a Dual Plasma (Thermo Scientific – iCAP 6000 Series) Results: Results demonstrated that the Synadenium grantii leaves are source of K but aren't the best source of Na and P. Its leaves are rich in elements such as Mg, Cr, Cu, Fe, Mn, Mo and Zn. The leaves of Synadenium grantii showed a high content of Mg values tolerable upper intake level. However, Fe, Na, P, Mn, Mo and Zn are below the values tolerable upper intake level. The leaves of this plants have elements as Ni, Cu, Cr, Cd above the permissible limit set by WHO and FAO. Conclusions: The gaps in knowledge about the level of contents in the Synadenium grantii was completed in this work and would serve as a tool for deciding the dosage of prepared from this plant with medicinal and nutritional purposes. Brazil should create legal standards for the use of medicinal plants based on internationally practiced requirements. Keywords: Medicinal plants, Synadenium grantii, inductively coupled plasma mass spectrometry.

Characterization of Pottery from Teotihuacan Using Laser-Induced Breakdown Spectroscopy and Inductively Coupled Plasma Optical Emission Spectroscopy

2021 ◽  
pp. 000370282199193
Author(s):  
Hugo Sobral ◽  
Mitzi Amador-Mejía ◽  
Ciro Márquez-Herrera
Keyword(s):  
Elemental Composition ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Laser Induced Breakdown Spectroscopy ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Pottery sherds from Teotihuacan, Mexico, belonging to the Formative and Classic periods (150 BCE–700 CE) were investigated using laser-induced breakdown spectroscopy (LIBS) and inductively coupled plasma optical emission spectrometry (ICP-OES). LIBS results show that most of the investigated samples have primarily the same elemental composition. Nevertheless, there are also a few sherds that could be associated to foreign ceramic groups with characteristic concentrations of Na, K, Ca, Mn, Rb, and Sr. The relative elemental composition of red pigments applied on ceramic bodies was also analyzed through a LIBS depth profiling. Diverse hematite-based pigments were distinguished according to the detected iron content. Hematite was also combined with red soils with a high relative content of Mn, Sr, Ba, or Ti. The ICP-OES analysis of ceramic pastes is consistent with the emission intensities obtained using LIBS. Principal component analysis indicates that all samples identified as locals belong to a single chemical group. Moreover, locally made ceramics and the analyzed clays from the nearby area have the same elemental composition, which appears clearly differentiated from imported samples.

scholarly journals Chlorine determination in medicinal plants by potentiometry with ion-selective electrode after microwave-induced combustion

2021 ◽  
Vol 5 (1) ◽  
pp. 19-25
Author(s):  
Mariele Samuel Nascimento ◽  
Gabriel Toneto Druzian ◽  
Rochele Sogari Picoloto ◽  
Paola Azevedo Mello ◽  
Erico M. M. Flores
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Ion Selective Electrode ◽  
Emission Spectrometry ◽  
Selective Electrode ◽  
Complete Combustion ◽  
Inductively Coupled ◽  
Relative Standard

A method based on microwave-induced combustion (MIC) was applied for medicinal plants digestion allowing further chlorine determination by potentiometry using ion-selective electrode (ISE). Sample masses ranging from 500 to 1000 mg were evaluated for MIC digestion. Water and 10, 25, 50, and 100 mmol/L NH4OH were investigated as absorbing solutions. The accuracy of the proposed method was evaluated by using certified reference materials (CRMs), by recovery tests (500 µg/g), and also by comparison with the results obtained by inductively coupled plasma optical emission spectrometry (ICP-OES) after microwave-assisted alkaline extraction (MAE). Using water or NH4OH solutions (10 to 100 mmol/L), recoveries close to 100% and relative standard deviation lower than 5% were obtained. Results were in agreement with CRMs values (better than 95%) and also with those values obtained by using the MAE method. The main advantage of the proposed method was the complete combustion of high sample mass (1000 mg) resulting in low quantification limit (12.5 µg/g) and chlorine determination at low concentration by ISE. Another advantage of the proposed method was the high chlorine stability in digests (up to 30 days of storage) even using water as absorbing solution, which is in agreement with green analytical chemistry recommendations. Finally, the proposed MIC method was applied for commercial medicinal plants and the chlorine concentration was in the range of 59.4 ± 1.4 to 2038 ± 70 µg/g. The proposed MIC method was considered suitable for quality control for chlorine determination in medicinal plants.

scholarly journals A Century long of coral records of heavy metals in coastal water of Wakatobi Marine National Park, South East Sulawesi

2021 ◽  
Vol 944 (1) ◽  
pp. 012060
Author(s):  
A A Lubis ◽  
A D P Putra ◽  
U Sugiharto ◽  
Lalang ◽  
N P Zamani
Keyword(s):  
Heavy Metals ◽  
Coastal Water ◽  
Inductively Coupled Plasma ◽  
National Park ◽  
Principal Component ◽  
Optical Emission ◽  
Average Concentration ◽  
X Ray ◽  
Inductively Coupled ◽  
Pneumatic Tool

Abstract Scleractinian corals absorb heavy metals in their skeletons; therefore, corals can be used as environmental recorders due to incorporating certain metals for centuries. The research was conducted in Wakatobi Marine National Park (WMNP) using a core of massive coral Porites Sp. to determine heavy metals’ concentrations and assess the possible impact on the coastal water. The sample was collected by drilling the coral vertically using a pneumatic tool. Annual banding was determined by using x-ray radiography, continued with sub-sampled from each band, and analyzed using an Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) for heavy metals determination. Enrichment Factor (EF) and Principal Component Analysis (PCA) were applied for assessing possible impact and differentiating between the heavy metals, respectively. The concentrations of heavy metals fluctuated during the period of the year 1917 to 2016, with the average concentration were 0.55 %, 0.07 %, 2.46 ppm, 3.86 ppm, 5.70 ppm, 63.22 ppm, 0.66 ppm, 3.16 ppm, 0.66 ppm, and 42.59 ppm for Sr, Mg, Mn, Ba, Cu, K, Pb, Zn, Cr, and Al, respectively. EF for all heavy metals showed that the coastal area was at the level of very small pollution (EF<2); therefore, it can be used as baseline data.

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