scholarly journals Trace Determination of Selected Heavy Metal Ions in Bleaching Creams in the Local Market of Saudi Arabia

2017 ◽  
Vol 14 (4) ◽  
pp. 1349-1354
Author(s):  
Faten M. Ali Zainy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Saudi Arabia ◽  
Direct Determination ◽  
Optical Emission ◽  
Local Market ◽  
Icp Oes ◽  
Recovery Percentage ◽  
High Concentrations

ABSTRACT: Bleaching cream and cosmetics products of skin have risk of toxicity and deleterious effects to the human health because of their multiplicative contamination with heavy metals and uncertain mixing of different components. Thus, the present study reports a comprehensive study on the trace selected heavy metal (Hg, Cd, Ti, Bi, Pb, As and Tl) determination in 16 samples of bleaching creams and samples mixture of bleaching creams simultaneously to get a double activity (shiny and faster) on the skin from the local market of Saudi Arabia. Samples were digested with high pressure microwave technique followed by direct determination by inductive coupled plasma - optical emission spectrometer (ICP-OES). Hg, Bi, Ti and Pb levels on samples were found equal 5739.16, 7013.53, 21407.73, 456.70 µg/g, respectively whereas other elements (Cd, As and Tl) were found less than 28.99 ppm. One sample of the mixtures showed high concentrations of Hg (13338.50 µg/g,) and Bi (619.23 µg/g). Thus, creams and cream mixtures containing heavy metals above the permissible limit must be blind. The lower detection limits (LOD) were achieved at 2.5-50 µg/g concentration level, RSD was less than 14.72%, and recovery percentage for cosmetics were in the range of 88.52 -99.62%. The proposed method for sample digestion and ICP-OES measurements was fast, precise, convenient and provided good recovery of the tested elements.

Measuring heavy metals by quantitative thermal vaporization

2000 ◽  
Vol 42 (7-8) ◽  
pp. 209-216 ◽  
Author(s):  
C. Ludwig ◽  
A. J. Schuler ◽  
J. Wochele ◽  
S. Stucki
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Waste Incineration ◽  
Quantitative Relation ◽  
Icp Oes ◽  
Inductively Coupled ◽  
On Line

It is our vision to separate volatile toxic contaminants from waste by thermal treatment. In this context the evaporation behavior of heavy metal traces (Cd, Cu, Pb, and Zn) from model compounds and mixtures, and from fly ash (FA) of municipal solid waste incineration (BCR No. 176) was investigated. In this study we tested a new method which allows on-line detection of heavy metals in hot gases using conventional Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) equipment. A quantitative relation between the amount of evaporated heavy metal traces and the ICP-OES signal was established. In addition, gaseous HCl was successfully used for the total removal of heavy metal traces from non-volatile compounds. The evaporation behavior predicted by speciation calculations were in agreement with the experimental results. The experiments have shown that the method could become a complementary tool for common analytical digestion and measuring methods for the determination of heavy metal traces in solid samples. As our method combines extraction and analytical steps it therefore can shorten conventional procedures. It allows simultaneous, and compared to a conventional digestion and ICP-OES analysis, more sensitive measurements of several elements. The application could become especially powerful for the analysis of contaminated soil and waste residuals.

scholarly journals PHYTOCHEMICAL SCREENING AND HEAVY METAL ANALYSIS OF ULVA RETICULATA

2018 ◽  
Vol 11 (4) ◽  
pp. 84
Author(s):  
Gomathi K ◽  
Anna Sheba L
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Inductively Coupled Plasma ◽  
Tamil Nadu ◽  
Optical Emission ◽  
Phytochemical Analysis ◽  
Icp Oes ◽  
Dissolved Metals ◽  
Metal Analysis ◽  
Heavy Metal Analysis

 Objective: Ulva reticulata is a marine edible green seaweed widely distributed along the coastal lines of India. The present study was designed to screen the phytochemicals and evaluate heavy metals content of U. reticulata collected from Rameshwaram, Tamil Nadu, India, in the perspective of assessing their therapeutic value and/or safety in relation to its uses.Method: The seaweed sample was subjected to extraction with solvents of different polarities (methanol, ethanol, acetone, chloroform, and petroleum ether) and screened for phytochemicals according to standard methods. Heavy metal analysis was also performed with the dried sample powder using inductively coupled plasma optical emission spectrophotometer (ICP-OES).Result: Preliminary phytochemical analysis revealed the presence of reducing sugar, proteins, flavonoids, glycosides, alkaloids, and anthraquinones. ICP-OES indicated the seaweed to contain relative amount of heavy metals in the order of iron (Fe) > chromium (Cr) > Zinc (Zn) > nickel (Ni) > copper (Cu) > lead (Pb) - cadmium (Cd) and is within the permissible limits set by the WHO/FAO, except Fe and Cr.Conclusion: The different solvent extracts of U. reticulata showed the presence of the number of phytochemicals. Furthermore, the present study has revealed the presence of heavy metals in U. reticulata which can be a representative picture of the dissolved metals in the aquatic phase.

scholarly journals The cup plant (Silphium perfoliatum L.) – a viable solution for bioremediating soils polluted with heavy metals

2020 ◽  
Vol 48 (4) ◽  
pp. 2095-2113
Author(s):  
Radu L. SUMALAN ◽  
Cornelia MUNTEAN ◽  
Ana KOSTOV ◽  
Daniel KRŽANOVIĆ ◽  
Noemi L. JUCSOR ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Translocation Factor ◽  
Average Concentration ◽  
Mining Sites ◽  
Viable Solution ◽  
High Concentrations ◽  
Living Organisms ◽  
Alert Threshold

Heavy metal pollution, manifested by the accumulation, toxicity and persistence in soil, water, air, and living organisms, is a major environmental problem that requires energetic resolution. Mining tailing areas contain metal minerals such as Cu, Zn, Pb, Cr and Cd in high concentrations that pollute the environment and pose threats to human health. Phytoremediation represents a sustainable, long-term, and relatively inexpensive strategy, thus proving to be convenient for stabilizing and improving the environment in former heavy metal-polluted mining sites. This study presents the bioremediation potential of Silphium perfoliatum L. plants, in the vegetative stages of leaf rosette formation, grown on soil polluted with heavy metals from mining dumps in Moldova-Noua, in the Western part of Romania. The bioaccumulation factor (BAF), translocation factor (TF), metal uptake (MU) and removal efficiency (RE) of Cu, Zn, Cr and Pb by S. perfoliatum plants were determined in a potted experiment in controlled environmental conditions. The reference quantities of heavy metals have been determined in the studied soil sample. The experiment followed the dynamics of the translocation and accumulation of heavy metals in the soil, in the various organs of the silphium plants, during the formation of the leaf rosette (13-18 BBCH). The determination of the amount of heavy metals in soil and plants was achieved by the method of digestion with hydrochloric and nitric acid 3/1 (v/v) quantified by atomic absorption spectroscopy (AAS). The obtained experimental results demonstrate that the substrate has a high heavy metal content being at the alert threshold for Zn (260.01 mg kg-1 in substrate compared with alert threshold 300 mg kg-1) and at intervention thresholds for other metals (Cu -234.66 mg kg-1/200 mg kg-1; 299.08 mg kg-1/300 mg kg-1 and Pb-175.18 mg kg-1/100 mg kg-1). The average concentration of the metals determined in dynamics in the dry biomass of plants varied between roots, petioles, and laminas. The root is the main accumulator for Cu and Cr (Cu – 37.32 mg kg-1 -13 BBCH to 43.89 mg kg-1-15 BBCH and 80.71 mg kg-1 – 18 BBCH; Cr – 57.43 mg kg-1 – 13 BBCH to 93.36 mg kg-1 -18 BBCH), and for Zn and Pb the lamina seems to carry the same function. Preliminary results show that Silphium perfoliatum may be a viable alternative in the bioremediation and treatment of heavy metal-contaminated area.

scholarly journals INVESTIGATION OF METALS RELEASED FROM IMPORTED COOKWARE COLLECTED FROM A LOCAL MARKET IN RIYADH, SAUDI ARABIA

2021 ◽  
Vol 37 ◽  
Author(s):  
Ibrahim Mohammed Alrajhi ◽  
Hajo Idriss
Keyword(s):  
Heavy Metals ◽  
Saudi Arabia ◽  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Optical Emission ◽  
Local Market ◽  
Metal Release ◽  
Inductively Coupled ◽  
Essential And Toxic Elements ◽  
Optical Emission Spectrometer

Monitoring the presence of heavy metals in cookware intended for use by both humans and animals is of interest, because of their toxic effects. In this report, a study has been conducted to determine the heavy metals released from 46 items of metallic cookware purchased from a local market in Riyadh. Mn, Fe, Cu, Cr, As, Zn, Ni, Al, Cd and Pb, were analyzed using an inductively coupled plasma-optical emission spectrometer. The order of concentration of essential and toxic elements in all samples showed the following trend: Mn > Al > Pb = As > Fe > Zn > Cu = Ni = Cd > Cr. This study highlighted the importance of the metal release monitoring from cooking utensils in order to protect people from the dangers posed by toxic metals.

scholarly journals Ecological role of Ulmus pumila L. in limitation of heavy metals input into the environment of some anthropogenic areas of Trans-Baikal Territory

2018 ◽  
Vol 7 (4) ◽  
pp. 57-64
Author(s):  
Lubov Viktorovna Kopylova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Anthropogenic Factors ◽  
Ulmus Pumila ◽  
Research Findings ◽  
High Concentrations ◽  
Characteristic Features ◽  
Excessive Accumulation

The paper deals with the most negative pollution of the environment - heavy metal pollution. We describe the main sources of heavy metal input to soils, their form and character of distribution on the surface of land. The paper presents the research data on study of plants capacity to accumulate different microelements including heavy metals. We study the Trans-Baikal Territory as the oldest mining territory which has been influenced by different anthropogenic factors. The urgency of this study is determined by the fact that it is important to reveal species capable of accumulating heavy metals in their organs and tissues for the purpose of improving and supporting the ecological balance of anthropogenic territories. We describe Siberian elm ( Ulmus pumila L.), a tree species often used in urban lands greening. The research findings on determination of content and characteristic features of some heavy metals accumulation in Ulmus pumila L. organs (leaves, roots, bark) in anthropogenic conditions are discussed. We analyze the data on accumulation of heavy metals (Zn, Fe, Mn, Ni, Cu, Cr, Sr, Rb, Ti) in soil of test sites and the studied organs of Ulmus pumila L. It has been determined that Ulmus pumila L. accumulates all heavy metals studied in different quantities, accumulating their high concentrations mainly in the root and bark. This species accumulates Fe, Sr, Mn, Ti, Zn most of all, it accumulates less quantities of Rb, Cu, Cr и Ni. Excessive accumulation of heavy metals by the studied species is associated with its location. Thus, we have determined the possible use of Ulmus pumila L. as a natural biofilter limiting the input of heavy metals into the anthropogenic territories environment.

scholarly journals CONCENTRATION OF HEAVY METALS ON ROOTS, STEM AND LEAVES OF Enhalus acoroides, IN TUNDA ISLAND, BANTEN BAY

2018 ◽  
Vol 10 (3) ◽  
pp. 769-784
Author(s):  
Neviaty P Zamani ◽  
Tri Prartono ◽  
Ali Arman ◽  
Dewi S. Ariesta ◽  
Iswandi Wahab
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Sea Water ◽  
Optical Emission ◽  
Mangrove Ecosystem ◽  
Emission Spectrometry ◽  
Sediment Grain Size ◽  
Result Show ◽  
High Concentrations ◽  
Living Organisms

Heavy metal pollution is one of serious problem for tropical mangrove ecosystem. Heavy metals can  decrease the quality of a waters. The decreasing in water quality can caused by pollutants such as heavy metals with high concentrations greatly affects the aquatic environment, especially living organisms. The aimed of study is to determine the accumulation level of heavy metals such as Al, Cu, Pb, As, Ni, Cr, Ti, Mn, dan Fe, in root, leaves and  stem of E. acoroides. The sampling was carried out in the northern and southern parts of Tunda Island, in March 2015. The method used for seagrass destruction is 6 mL 65% HNO3 and mL H2O2 30%, sediment destruction using Milestone Start D microwave labstation. and using ICP-OES (Inductive Coupled Plasma-Optical Emission Spectrometry) Thermo Scientific iCAP 700 Series. The result show that, the Al, was the dominant heavy metals observed both in sea water and sediment surrounding the observed sea grass areas. Similar result was also observed for seagrass.  The dominant sediment grain size absorbing heavy metals is silt-clay because it has more organic matter to control the binding of heavy metals. Heavy metal bioaccumulation is predominant in seagrass leaves and stems due to heavy metal entry into seagrass, substance storage tissue, and seagrass characteristics that are completely submerged in water. Seagrass meadow ecosystem in Tunda Island has been contaminated by several heavy metals.

Sign in / Sign up

Export Citation Format

Share Document