scholarly journals Comparative Study of Heavy Metals in Dried and Fluid Milk in Peshawar by Atomic Absorption Spectrophotometry

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Ghosia Lutfullah ◽  
Abid Ali Khan ◽  
Azra Yasmeen Amjad ◽  
Sajida Perveen

Various essential and toxic heavy metals (Ca, Mg, Cu, Zn, Fe, Mn, Pb, Cd, Cr, and Ni) contents in various types of dried (infant formulaandpowdered) and fluid (freshandprocessed) cow milk were assessed by atomic absorption spectrophotometry. The milk samples were collected from local markets of different parts of Peshawar city, Pakistan. Heavy metal concentrations varied significantly depending upon the type of milk. The heavy metal concentrations in most of the samples were within normal and permissible ranges. It was observed that the samples contained considerable amounts of calcium, while magnesium levels were well above the required levels. The results also revealed that copper levels were slightly lower than the permissible limits. The concentration of zinc in dried milk samples was greater than the values for the liquid milk types. Infant milk formulae had higher iron levels as compared to other milk samples because of the added constituents. Significant differences were observed in the mean values of manganese and cadmium in different types of milk. The toxic metals were within the acceptable limits and did not show significant levels leading to toxicity.

2019 ◽  
Vol 21 (1) ◽  
pp. 69-82
Author(s):  
Iyabode Olusola Taiwo ◽  
Olaniyi Alaba Olopade ◽  
Nathanael Akinsafe Bamidele

Abstract This research was undertaken to find out the levels of five heavy metals (Cu, Fe, Mn, Pb, and Zn) in the muscles of eight fish species from Epe Lagoon. The levels of heavy metals were determined by atomic absorption spectrophotometry after digestion of the samples using Kjldahl heating digester. The heavy metal concentrations among the fish species were statistically dissimilar (P < 0.5). The heavy metals of Pb, Fe, and Mn were above the FAO/WHO agreeable limits for human consumption.


2018 ◽  
Author(s):  
Ismail Marzuki

The Research has been conducted by analysis of heavy metal sea sediments concentrations of Lead (Pb), Copper (Cu), arsenic (As) and mercury (Hg) from Melawai Beach of Balikpapan, East Kalimantan. The research Method for all sample preparation is done by dry destruction, except for Hg analysis done by wet destruction then analyzed using Atomic Absorption Spectrophotometry (AAS) with specific wavelength for each metal. Concentrations were obtained from sediment of heavy metals Pb, Cu, As and Hg: Pb (λ max: 217.0 nm): 35.7504 to 41.4850 mg/kg; Cu (λ max: 253.7 nm): 16.0713 to 30.2314 mg/kg; As metal (λ max: 109.7 nm), 4.1406 to 5.3359 mg/kg; and Hg (λ max: 357.3 nm) from 0.8975 to 1.1991 mg/Kg, respectively. The analysis results of this research concluded that, the Melawai Balikpapan beach polluted with heavy metals, especially Pb, Cu, As and Hg.


2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Endang Supriyantini ◽  
Hadi Endrawati

Logam berat Fe merupakan logam berat essensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah yang berlebih dapat menimbulkan efek racun.Penelitian ini bertujuan untuk menganalisis kandungan dan tingkat pencemaran logam berat Fe pada air, sedimen, dan kerang hijau (Perna viridis) di perairan Tanjung Emas Semarang. Penelitian ini dilaksanakan pada tanggal 7 November dan 7 Desember 2013 dengan metode penelitian deskriptif. Logam berat Fe dalam sampel air, sedimen dan kerang hijau dianalisis di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BTPPI) Semarang dengan menggunakan metode AAS (AtomicAbsorption Spectrophotometry). Hasil penelitian menunjukkan bahwa perairan Tanjung Emas masih dalam taraf terkontaminasi logam Fe. Sedangkan pada sedimen dan pada kerang hijau (Perna viridis) sudah terindikasi tercemar logam Fe.Meskipun demikian variasi faktor lingkungan seperti suhu, salinitas, pH, kecepatan arus dan jenis sedimen juga memberikan kontribusi yang cukup penting terhadap kandungan logam Fe.Kata Kunci: logam Fe, Air, Sedimen, Perna viridis, metode AAS Heavy metalsiron(Fe) is anessentialheavy metalswhose presencein a certain amountis neededby living organisms, but inexcessiveamountscan causetoxic effects.The aims of the research is to analyze the heavy metals coccentration and the pollution level of Fe in water, sediment, and green mussels (Perna viridis) at Tanjung Emas Semarang. This research was conducted from 7 November and 7 December 2013 using the Atomic Absorption Spectrophotometry (AAS) and research methodswithdescriptive. The results showed that the waters of the Tanjung Emas is still in the stage of heavy metals contaminated iron (Fe). Sediment and green mussels (Perna viridis)already indicated heavy metal contaminatediron. However, variations inenvironmental factorssuch astemperature, salinity, pH, flow velocity an dsediment types also providean important contributionto heavy metal contentof iron(Fe).Key Words: Fe, water, sediment, Perna viridis, metode AAS


Author(s):  
Marcelle S. P. A. de Souza ◽  
Fabiana S. dos Santos ◽  
Luis M. S. Magalhães ◽  
Welington K. de Freitas ◽  
Givanildo de Gois ◽  
...  

ABSTRACT The present study aimed to determine heavy metal concentrations in the tree bark of the species Poincianella pluviosa in Volta Redonda municipality, Rio de Janeiro. Four sets of barks of eight trees with three replicates each from sectors 1 (W), 2 (S), 3 (E), and 4 (N) of the Volta Redonda center corresponding to the cardinal points were collected. The samples were digested in a nitroperchloric mixture and the lead (Pb), cadmium (Cd), nickel (Ni), copper (Cu), zinc (Zn), iron (Fe), and manganese (Mn) contents were determined by atomic absorption spectrophotometry. The cluster analysis (CA) formed 12 groups; among them, group 3 (G3) showed the presence of all seven elements in sector 1 and group 8 (G8) showed the presence of Pb, Zn, Fe, Ni, and Mn in sector 2. Kruskal-Wallis and Bonferroni tests showed that all elements presented statistically different values among the four sectors when compared with each other (p > 0.05). Sectors 1, 2, and 3 had the highest concentrations of heavy metals, which are directly associated with vehicle and railroad flow and iron and steel activities that are concentrated in these sectors. Bark can be used as an effective method for the monitoring of air pollution in urban areas.


2019 ◽  
Vol 8 (2) ◽  
pp. 61
Author(s):  
Indah Syahiddah Fitroh ◽  
Petrus Subardjo ◽  
Lilik Maslukah

Kegiatan industri di Perairan Muara Sungai Tiram, Marunda, Jakarta Utara, akan berdampak terhadap konsentrasi logam berat di Perairan. Sedimen merupakan tempat akumulasinya logam tersebut dan pada suatu saat akan dapat menjadi sumber bagi kolom perairan diatasnya. Tujuan penelitian ini adalah untuk mengetahui konsentrasi logam berat pada sedimen dasar dan mengetahui korelasinya terhadap ukuran butir serta dan bahan organik. Analisa logam berat diawali dengan proses destruksi menggunakan aquaregia dan supernatannya di baca nilai absorbasninya menggunakan Atomic Absorption Spectrophotometer (AAS). Untuk melihat hubungan parameter logam berat terhadap ukuran butir dan bahan organik, menngunakan analisis korelasi Pearson. Berdasarkan penelitian tersebut diperoleh nilai konsentrasi logam berat dengan kisaran 20,19–55,68 ppm. Konsentrasi logam berat memiliki korelasi positif terhadap fraksi silt dan clay.  Distribusi logam berat di lokasi penelitian berasosiasi kuat terhadap fraksi ukuran butir halus dan bahan organik, melalui proses adsorpsi. The waters of the Muara Sungai Tiram, Marunda, North Jakarta, are areas that are surrounded by very dense industrial activities. The existence of these activities has an impact on the concentration of heavy metals in basic sediments in these waters. The purpose of this study was to determine the concentration of heavy metals in basic sediments and determine the correlation between the concentration of heavy metals with grain size on the base sediment in the liquid and the correlation between the concentration of heavy metals with organic matter. Analysis of heavy metal concentrations was carried out using the acid destruction method, then the concentration was read using the Atomic Absorption Spectrophotometer (AAS), and processed into a heavy metal concentration map using Arcgis 10.3. Based on these studies the value of heavy metal concentrations obtained in the range of 20.19 - 55.681 ppm. Heavy metal concentrations have a positive correlation with the mud and organic matter fractions with r values of 0.68 and 0.10, respectively. The distribution of heavy metals in this study is strongly associated with the fine grain size fraction and organic matter, through the adsorption process


2014 ◽  
Vol 4 (7) ◽  
pp. 42-53 ◽  
Author(s):  
Omolara T. Aladesanmi ◽  
Isaac F. Adeniyi ◽  
Ibukun M. Adesiyan

Background. The potential toxicity of metals in water may have detrimental effects on the biochemical processes of aquatic organisms, especially fish, which serve as a source of protein in the protein-deficient Nigerian diet. Objective. The present study aimed to determine the concentration of heavy metals in African catfish (C. gariepinus) and investigate the health risk associated with heavy metals in fish. Methods. Heavy metal concentrations in the water samples were determined using atomic absorption spectrophotometry (AAS) and particle induced x-ray emission spectroscopy (PIXE) for sediment and fish tissues/organ samples. Results. Mean nickel (Ni) concentrations differed significantly (p&lt;0.05) by sample type in both the dry and rainy seasons. Similarly, during the rainy season, mean lead (Pb) concentrations in all of the samples from Osogbo differed significantly (p&lt;0.05) by type, with the highest concentration in fish muscle (10.11±1.21 μg/kg) and the lowest Pb concentration in pond water (1.72±0.05 μg/L). Mean chromium (Cr) concentrations of samples from the Ewuru/Rara stream in Yakoyo also differed significantly (p&lt;0.05) by type, with the highest concentration in fish muscle (113.10.±10.07 μg/kg) and the lowest concentration in pond water (3.31±0.22 μg/L). Discussion. Heavy metal concentrations in pond and stream sediment samples revealed transport and deposition processes where trace metals are deposited and incorporated into sediment after entering the aquatic system. Iron (Fe) had the highest concentration levels ranging from (196.21 μg/g – 698.65 μg/g) in the three locations investigated, while Pb levels were the lowest, ranging from (9.05 μg/g – 75.30 μg/g). Conclusions. In general, the concentrations of Cr, copper (Cu) and manganese (Mn) were below standard guidelines, while the concentrations of nickel (Ni) and lead (Pb) were fairly higher than the tolerable limits for water pollution standards.


2020 ◽  
Vol 71 (8) ◽  
pp. 80-89
Author(s):  
Zafar Iqbal Khan ◽  
Kafeel Ahmad ◽  
Naunain Mehmood ◽  
Asia Fardous ◽  
Yongjun Yang ◽  
...  

Presence of hazardous minerals in three major components (soil, forage and buffalo serum) was evaluated for determining extent of metal contamination in Sargodha, Pakistan. Ten soil and forage samples for each season were taken from ten randomly selected sites. 30 grazing buffaloes of �niliravi� breed (calves, non-lactating and lactating) were also sampled randomly from these sites for collection of serum. Heavy metal quantification via atomic absorption spectrophotometry was carried out for selenium, molybdenum and arsenic. Non-significant but positive correlation was found for selenium (Se) concentrations in soil, forage and serum and molybdenum (Mo) concentrations in soil and serum. Negative correlation (p]0.05) was obtained for Mo level between forage-serum and soil-forage which was indicative of molybdenum deficiency in the soil. The results suggested that the heavy metals remained below maximum permissible levels and were non-toxic for the ruminants of the study area.


PROMINE ◽  
2017 ◽  
Vol 5 (2) ◽  
pp. 15-29
Author(s):  
Eka Sari ◽  
Dyah Sandra Fiona ◽  
Nuril Hidayati ◽  
Eddy Nurtjahya

Besides to impact on changing of landscape and biodiversity, tin mined left heavy metal contaminants,and phytoremediation (the use of plants to accumulate heavy metals) is a chosen method. This studymeasures Pb (Lead), Cu (Copper), Zn (Zinc) in soil and dominant terestrial plants in tin mined landand Fe (Iron), Al (Aluminum), As (Arsen) in root and shoot of dominant plants in ex-tin mined pond.Dominant species was determined by vegetation analysis of quadrate method. Metals analysis wasconducted using atomic absorption spectrophotometry. Pb in secondary forest (8 ppm), in revegetatedtin mined soil (10,80 ppm) and in 0 year abandoned tin mined soil) (20,70 ppm) exceed qualitystandards. There is no potential of becoming accumulator plant for Pb, Cu, Zn in tin mined land, butSchima wallichii was found potential to be Cu accumulator in secondary forest because it hastranslocation factor (TF)>1. The highest Fe > 2% in shoot and > 3% in roots. Al > 2% in shoot and >3% in root. As was not detected.Keywords: Tin mined soil, Bangka, Metal, Accumulator plants


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.


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