scholarly journals Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Anetta Zioła-Frankowska ◽  
Marcin Frankowski ◽  
Karel Novotny ◽  
Viktor Kanicky
Keyword(s):  
Inductively Coupled Plasma ◽  
Human Health Risk ◽  
Daily Intake ◽  
Total Content ◽  
Black Tea ◽  
Water Soluble ◽  
Emission Spectrometry ◽  
Human Consumption ◽  
Plasma Atomic Emission Spectrometry ◽  
The Impact

The determination of boron by inductively coupled plasma-atomic emission spectrometry has been carried in water-soluble and acid soluble (total content) fractions of 36 samples of traditional black tea and fruit brew. The estimation of the impact of the type of tea on the concentration of boron in water-soluble and acid extracts and potential human health risk from the daily intake of boron was carried out in this study. The levels of boron differed significantly in black and fruit tea types. The mean total content of boron ranged from 8.31 to 18.40 mg/kg in black teas, from 12.85 to 15.13 mg/kg in black tea with fruit flavor, and from 12.09 to 22.77 mg/kg in fruit brews. The degree of extraction of boron in black tea ranged from 8% to 27% and for fruit tea from 17% to 69%. In addition, the values below 25% were of black teas with fruit flavors. The daily intake of B from tea infusions (three cups/day) is still within the average daily intake except for some of the fruit brews which exceed acceptable regulations of the daily intake of total boron by humans. Hence, it may not produce any health risks for human consumption, if other sources of metal contaminated food are not taken at the same time.

scholarly journals Determination of selected metallic elements in marsh clam, Polymesoda expansa, collected from Tanjung Lumpur Mangrove Forest, Kuantan, Pahang

2017 ◽  
Author(s):  
Meng Chuan Ong ◽  
Amalina Ibrahim
Keyword(s):  
Metal Pollution ◽  
Inductively Coupled Plasma ◽  
Mangrove Forest ◽  
Human Health Risk ◽  
World Health ◽  
Emission Spectrometry ◽  
Human Consumption ◽  
Essential Metals ◽  
Metallic Elements ◽  
The Impact

Presence of metallic elements in organisms is one of the important topics in environmental pollution, toxicology and food safety. It has been extensively studied because of the impact of these elements on the ecosystem and health of the seafood consumers. This study provides information on the concentration of some essential metals (copper, Cu; zinc, Zn) and non-essential metals (cadmium, Cd; lead, Pb) in the commonly consumed marsh clam, Polymesoda expansa, sampled randomly from Tanjung Lumpur mangrove forest, Kuantan, Pahang. It also focuses on the human health risk assessment in terms of toxicity of these metallic elements. Closed acid digestion method was used to digest the samples and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) was used to measure the metal contents in the samples. The mean concentration of each metal in the tissues was recorded on a dry weight basis. The average values were: Cu, 15.5 μg/g.; Zn, 296 μg/g ; Pb, 2.31 μg/g and Cd, 1.04 μg/g . These values are within the permissible limits set by Malaysian Food Regulation (1985) and the World Health Organization (1982). The pollution load index (PLI) value of 2.94 indicates that there is no serious metal pollution in this study area. The correlation coefficient matrix between four metallic elements shows positive value, suggesting that the selected metals may have originated from the same source and accumulated in the clam tissue. A positive correlation was noted between the size of the clam and concentrations of Cd, Zn and Cu whereas it was negative for Pb. The present finding shows that the marsh clams from Tanjung Lumpur are safe for human consumption. However, a proper and continuous assessment should be done in order to monitor any changes in the contents of metallic elements since Tanjung Lumpur is near the Kuantan city center and the mining activities at the upstream area might at some stage cause metal pollution.

scholarly journals Determination of Phosphorus in Fertilizers by Inductively Coupled Plasma Atomic Emission Spectrometry

2002 ◽  
Vol 85 (6) ◽  
pp. 1241-1246 ◽  
Author(s):  
Wei Min Yang ◽  
Rhonda L Boles ◽  
Thomas P Mawhinney
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Water Soluble ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Phosphorus Determination

Abstract An inductively coupled plasma atomic emission spectrometry (ICP-AES) method was developed for the determination of phosphorus in fertilizers. Total phosphorus, direct extraction available phosphorus (EDTA), and water-soluble phosphorus, reported as phosphorus pentoxide (P2O5), in 15 Magruder check fertilizers were measured by ICP-AES, and the results were compared with those obtained by the AOAC official method. Five analytical wavelengths of phosphorus, 177.499, 178.287, 213.618, 214.914, and 253.565 nm, were tested for the determination of phosphorus in fertilizers, and their detection limits were obtained. Acid effects of perchloric acid and possible matrix effects of aluminum, calcium, magnesium, potassium, and sodium were negligible for phosphorus determination. Wavelength 213.618 nm was the best analytical wavelength for phosphorus determination by all 3 sample preparation methods for the selected Magruder fertilizers. The results demonstrated that the accuracy and precision of the ICP-AES method were comparable with those of the official methods.

SIMPLE MICROWAVE DIGESTION TECHNIQUE FOR ELEMENTAL ANALYSIS OF MINERAL SOIL SAMPLES

1990 ◽  
Vol 70 (4) ◽  
pp. 617-620 ◽  
Author(s):  
C. J. WARREN ◽  
B. XING ◽  
M. J. DUDAS
Keyword(s):  
Inductively Coupled Plasma ◽  
Soil Analysis ◽  
Microwave Digestion ◽  
Mineral Soil ◽  
Total Content ◽  
Soil Samples ◽  
Elemental Abundance ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Digestion Technique

A new, rapid, and inexpensive method is described for digestion and dissolution of mineral soil and clay samples for determination of total elemental abundance. Standard soil samples were dissolved using HF and HNO3 in 60 mL Teflon bombs. Dissolution was complete after 7 min using a household microwave oven operating at 350 W. Addition of H3BO3 stabilized the digests against loss of silicon. Precise and accurate results were obtained for digests analyzed by inductively coupled plasma atomic emission spectrometry for total content of Si, Al, Fe, Mg, Ca, Na, K, and Mn. Key words: Elemental composition, standard soils, soil analysis

scholarly journals Chemical Analysis of Suspected Unrecorded Alcoholic Beverages from the States of São Paulo and Minas Gerais, Brazil

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Giuseppina Negri ◽  
Julino Assunção Rodrigues Soares Neto ◽  
Elisaldo Luiz de Araujo Carlini
Keyword(s):  
Inductively Coupled Plasma ◽  
Human Health Risk ◽  
Atomic Emission ◽  
Poor Quality ◽  
Minas Gerais ◽  
Sao Paulo ◽  
Alcoholic Beverages ◽  
Emission Spectrometry ◽  
São Paulo ◽  
Plasma Atomic Emission Spectrometry

Our study analyzed 152 samples of alcoholic beverages collected from the states of São Paulo and Minas Gerais, Brazil, using gas chromatography with flame ionization detection (GC-FID) and mass spectrometry (GC-MS), Fourier transform infrared spectroscopy (FT-IR), and inductively coupled plasma atomic emission spectrometry (ICP-AES). The methanol content varied from 20 to 180 ppm in 28 samples, and the limit of the accepted level of 200 ppm was exceeded in only one sample. High content of cyanide derivatives and ethyl carbamate, above the accepted level of 150 ppb, was observed in 109 samples. Carbonyl compounds were also observed in 111 samples, showing hydroxy 2-propanone, 4-methyl-4-hepten-3-one, furfural, and 2-hydroxyethylcarbamate as main constituents. Copper was found at concentrations above 5 ppm in 26 samples; the maximum value observed was 28 ppm. This work evaluated the human health risk associated with the poor quality of suspected unrecorded alcohols beverages.

scholarly journals Flow Injection Analysis System Coupled with ICP-EOS for Determination of Some Metallic Elements in Drinking Water

2009 ◽  
Vol 4 (1) ◽  
pp. 66-71
Author(s):  
Cristina Dinu ◽  
Gabriela Vasile ◽  
Liliana Cruceru ◽  
Jana Petre
Keyword(s):  
Drinking Water ◽  
Flow Injection ◽  
Inductively Coupled Plasma ◽  
Hydride Generation ◽  
Injection System ◽  
Emission Spectrometry ◽  
Human Consumption ◽  
Metallic Elements ◽  
Plasma Atomic Emission Spectrometry

The European Drinking Water Directive (98/83/EC), transposed in Romanian Legislation as Low 458/2002, amended by Low 311/2004, imposes the limit of concentration for metallic elements in water intended for human consumption. The toxic metals arsenic and selenium are among these elements and the limit value is 10 μg/L. In the paper there are presented the working conditions for determination of As and Se from drinking water using modern techniques based on the fl ow injection-hydride generation with the inductively coupled plasma atomic emission spectrometry (FIAS-ICP-EOS). The analyses were performed on Optima 5300 DV Perkin Elmer equipment with FIAS 400 Flow Injection System, Perkin Elmer type. For the hydride generation two types of solution were used: 10% (v/v) HCl as a carrier solution and 0.2 % NaBH4 in 0.05%NaOH solution as a reducing agent [1]. The treatment step of the samples and standard solutions consisted in reducing with mixed solutions of KI and ascorbic acid in acidic condition (HCl) for As and only with HCl and high temperature for Se [2,3]. The paper contains the characteristic parameters of the methods, such as: low detection limit, quantifi cation limit, repeatability, precision, recovery, which were evaluated using Certifi ed Reference Materials for each element.

scholarly journals The Hazard Content of Cadmium, Lead, and Other Trace Elements in Some Medicinal Herbs and Their Water Infusions

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Fuad A. Ababneh
Keyword(s):  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Raw Materials ◽  
Daily Intake ◽  
Atomic Emission ◽  
World Health ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Health Organization

54 samples belonging to 23 herbal species (15 individuals and 8 mixtures) were analyzed for their contents of heavy metals in the raw materials and in their water infusions. Trace and toxic elements in these samples were determined by using inductively coupled plasma-atomic emission spectrometry (ICP-OES) following acid digestion. The order of decreasing mean metal concentrations in raw materials (mg/kg) was found to be as follows: Fe (440) > Mn (162) > Zn (45.8) > Cu (12) > Pb (10.4) > Ni (5.4) > Cr (2.9) > Co (0.91) > Cd (0.5). It was found that 21% of the analyzed samples contain both Cd and Pb above their permissible limits. However, the infusions produced from these plants were found to contain fewer amounts of metals than the raw materials. Studied metals had the following mass transfer percentages to the infusion solutions (Fe: 3.5%, Cd: 14%, Cr: 15%, Pb: 20%, Co: 29%, Ni: 31%, Zn: 36%, Cu: 48%, and Mn: 53%). The estimated daily intake calculated for the toxic elements Pb and Cd through the consumption of herbal infusions was far below the tolerable daily intake set by the World Health Organization (WHO).

scholarly journals Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Mónica Gisel Arellano-Sánchez ◽  
Christine Devouge-Boyer ◽  
Marie Hubert-Roux ◽  
Carlos Afonso ◽  
Mélanie Mignot
Keyword(s):  
Inductively Coupled Plasma ◽  
Ethylenediaminetetraacetic Acid ◽  
Certified Reference Materials ◽  
Total Content ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Chromium Vi ◽  
Edta Extraction

AbstractIn this study, seven pretreatment methods for chromium speciation in tanned leather were evaluated: acidic mineralization, ethylenediaminetetraacetic acid (EDTA) extraction, diethylenetriaminepentaacetic acid (DTPA) extraction, alkaline extraction (NH4OH), ammonium nitrate extraction (NH4NO3), water extraction, and phosphate buffer extraction. Acidic mineralization permitted the decomposition of the organic matter and ensured the complete digestion of leathers, giving access to the total content of chromium in each sample using inductively coupled plasma-atomic emission spectrometry (ICP-AES). From all the extractant media tested, EDTA proved to be the most efficient, allowing the extraction of Cr(VI) and Cr(III) as a Cr(III)-EDTA complex, quantitatively. Method validation is presented for EDTA extraction and direct mineralization. For the EDTA extraction, method detection limit (MDL) and method quantification limit (MQL) for total Cr in leather were 3.4 ppb and 11.2 ppb (µg of total Cr per L of extraction solution), respectively. Due to the lack of leather certified reference materials (CRMs) for Cr(VI), accuracy was evaluated by spiking leather samples with a Cr(VI) solution. The spike recovery of EDTA microwave assisted extraction ranged from 91.0 to 108.6%. Interday precision was also evaluated and all variation coefficients were below 5%, for both mineralization and EDTA extraction. This article provides an efficient procedure to extract quantitatively chromium from leather, while maintaining the speciation, which can be further followed by ion chromatography-inductively coupled plasma-mass spectrometry (IC-ICP-MS).

scholarly journals Effect of a joint policy statement by nine UK shooting and rural organisations on the use of lead shotgun ammunition for hunting common pheasants Phasianus colchicus in Britain

2021 ◽  
Vol 18 ◽  
pp. 1-9
Author(s):  
Rhys Green ◽  
Mark Taggart ◽  
Deborah Pain ◽  
Nigel Clark ◽  
Louise Clewley ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Phasianus Colchicus ◽  
Detectable Effect ◽  
Human Consumption ◽  
Policy Statement ◽  
Plasma Atomic Emission Spectrometry ◽  
Negative Effects ◽  
Joint Statement

There are significant negative effects of exposure to spent lead ammunition on wildlife and human health. A joint statement was issued by nine UK shooting and rural organisations on 24th February 2020 intended to encourage a voluntary transition to non-lead shotgun ammunition within five years “in consideration of wildlife, the environment and to ensure a market for the healthiest game products”. We dissected carcasses of wild-shot common pheasants Phasianus colchicus sold or offered for human consumption in Britain in the shooting season between 1st October 2020 and 1st February 2021 to recover shotgun pellets. The principal metallic element composing one pellet from each bird was identified using inductively coupled plasma atomic emission spectrometry. The results showed that 99% of the 180 pheasants from which shotgun pellets were recovered had been killed using lead shotgun ammunition, compared with 100% in a much smaller study conducted in the 2008/2009 shooting season. We conclude that the shooting and rural organisations’ joint statement, and their subsequent promotional actions, have not yet had a detectable effect on the ammunition types used by shooters supplying pheasants to the British game market.

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