scholarly journals Determination of Zn, Fe, Cr and Cu in Marine Fish Commonly Consumed in Senegal

2021 ◽  
Vol 3 (6) ◽  
pp. 123-128
Author(s):  
Cheikh Tidiane Dione ◽  
Birame Ndiaye ◽  
Cheikhna Diebakate ◽  
Momar Ndiaye ◽  
Maurice Millet ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Marine Fish ◽  
Fish Species ◽  
Scomber Japonicus ◽  
Acid Digestion ◽  
Acceptable Limit ◽  
Metal Contents ◽  
Pagrus Caeruleostictus ◽  
Iron Chromium

The content of four heavy metals (zinc, iron, chromium and copper) in muscles, liver and gonads has been studied for the five most consumed fish species (Cephalopholus taeniops, Scomber japonicus, Lagocephalus laevigatus, Pagellus bellottii and Pagrus caeruleostictus) in the Soumbedioune region. The samples were digested by acid digestion. The metal contents were quantified using a PF-11 type photometer. The results obtained show that metals such as zinc, iron and chromium are significantly higher (p <0.05) in the muscles of the four species than in the liver and gonads. However, the levels of heavy metals in the muscles, liver, and gonads of the five species are above the acceptable limit recommended by the FAO and WHO, with the exception of the copper levels in the gonads of the species Pagellus bellottii.

Determination of Heavy Metals in Wheat and Barley Grains Using ICP-MS/MS

2020 ◽  
Vol 103 (5) ◽  
pp. 1277-1281
Author(s):  
Tamer M A M Thabit ◽  
Shokr Abdelsalam Shokr ◽  
Dalia I H Elgeddawy ◽  
Medhat A H El-Naggar
Keyword(s):  
Heavy Metals ◽  
Acid Digestion ◽  
Validation And Verification ◽  
European Origin ◽  
Three Samples ◽  
Icp Ms ◽  
Two Samples ◽  
Low Levels ◽  
Barley Grains

Abstract Wheat and barley grains are two of the most important nutritional grains for humans and animals and they play an essential role in the nutritional cycle by different ratios according to people's nutritional habits. This work aimed to monitor ten of the most important heavy metals in some European-origin wheat and barley grains during the season of 2018. The measured elements, Al, As, Cd, Co, Cr, Hg, Mo, Ni, Pb, and V, are of importance ecologically and biologically and may be involved in many health disorders affecting the human body. Moisture, protein, and specific grain weights were checked. Samples were digested using microwave acid digestion and the elements measured with ICP-MS/MS in He mode to increase sensitivity, lower the background, and avoid interference. Method validation and verification were carried out through spiking at two levels (2.0 and 10 ppb), then RSD, LOD, and LOQ were calculated. Recoveries were &gt;97% for all elements at both levels with an RSD of &lt;7.6%. Results revealed that As, Cd, Hg, and Pb were not detected in most wheat and barley samples, whereas Cd was detected in one sample of Ukrainian wheat and two samples of Estonian barley (but in very small traces). Pb was detected in three samples of Polish wheat (in very small traces). Al, Mo, and Ni were detected in some samples of wheat and barley of all origins, whereas other elements were at very low levels considered to be negligible concentrations.

Assessment of heavy metals contamination in selected tropical marine fish species in Bangladesh and their impact on human health

2019 ◽  
Vol 11 ◽  
pp. 100210 ◽  
Author(s):  
M. Safiur Rahman ◽  
Md. Solaiman Hossain ◽  
Md. Kawser Ahmed ◽  
Sharmin Akther ◽  
Yeasmin N. Jolly ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Marine Fish ◽  
Fish Species ◽  
Marine Fish Species ◽  
Heavy Metals Contamination

scholarly journals Determination of Trace and Heavy Metals in Fruit Juices in the Romanian Market

2020 ◽  
Vol 77 (2) ◽  
pp. 125
Author(s):  
Florin Dumitru BORA ◽  
Anamaria CĂLUGĂR ◽  
Claudiu Ioan BUNEA ◽  
Ionut RACZ
Keyword(s):  
Heavy Metals ◽  
Calibration Method ◽  
Fruit Juices ◽  
Trace Heavy Metals ◽  
Icp Ms ◽  
Metal Contents ◽  
External Standard ◽  
Standard Calibration ◽  
Peach Juice

The presence of trace, heavy metals in foodstuffs is of intense public interest. The aim of this study was to determine the metal contents in most known commercial fruit juices present on the Romanian market. The multielement analysis was made using the ICP-MS technique, after appropriate dilution, using the external standard calibration method. Multifruit, mango, and kiwi juice have recoded the highest concentration of Cu, while apple and pear juice has recoded the lowest concentration, and in the case of Zn, peach juice has recoded the highest concentration. Concerning Pb, Cd, and As concentration, apple, peach, and multifruit juices recorded the highest levels of concentration. The concentration of Zn, Cu, Co, and As generally, was higher in the juice samples packed in boxes, while Ni, Cr, Pb, and Cd recorded the highest values in the juice packed in plastic bottles.

scholarly journals Assessment of Heavy Metal Residues in Excreta of Rock Pigeon (Columba Livia) and Domestic Pigeon (Columba livia Domestica) in Faisalabad, Punjab, Pakistan

2021 ◽  
Vol 2 (2) ◽  
pp. 219-228
Author(s):  
Shahid Hafeez Khan ◽  
Amjad Saeed ◽  
Tanveer Hussain ◽  
Junaid Naseer ◽  
Ghulam Yasin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Industrial Waste ◽  
Columba Livia ◽  
Acid Digestion ◽  
Fresh Weight ◽  
High Concentration ◽  
Digestion Method ◽  
Domestic Pigeon ◽  
Rock Pigeon

Pollution is the main cause that effects the environment in a degradable condition. For the presence of heavy metals in the atmosphere birds are considered as tremendous bio indicator. Blue pigeon and domestic pigeon (Coloumba livia) of Faisalabad are selected to examine the level of heavy metals including Manganese (Mn), zinc (Zn), Cobalt (Co), lead (Pb) cadmium (Cd) and Copper (Cu) in several tissues such as (heart, lungs, bones, muscles and feathers. Six adult birds were collected rural, urban and residential and traffic areas of Faisalabad. After collection of sample fresh weight will be measured of each sample, then digestion of sample was done by conventional acid digestion method and digested samples were analyzed in the lab by Atomic Absorption Spectrophotometer for the determination of heavy metals.  It was concluded that accumulation of heavy metals in the birds depends upon the environmental conditions. Our result showed that concentration of heavy metals more in rock pigeon as compared to domestic pigeon which may be due to more exposure of industrial waste to rock pigeon. It has inferred from our study that high concentration of heavy metals in the excreta of rock pigeon was due to its high trophic level in food chain.

Sign in / Sign up

Export Citation Format

Share Document