Atomic Absorption Spectrophometer Research Articles

TINGKAT PENCEMARAN LOGAM Cd, Fe, Cr DAN Cu AIR SUMUR GALI DI Eks-TPA TALANG GULO KOTA JAMBI

Former solid waste disposal at Talang Gulo TPA Jambi City implements a waste management system using a controlled landfill. Leachate and rainwater absorb into the soil and accumulate to become polluted groundwater. Furthermore, the polluted water flows into the dug well water and can reduce the quality of the dug well water. The aim of this study is to determine the heavy metal pollution index of residents' dug well water and the influence of the distance between the ex-TPA and dug well water. This research method is purposive sampling based on the distance of heavy metal sample points, namely 70 m, 230 m and 300 m. Sample analysis used an Atomic Absorption Spectrophometer (AAS) in the laboratory. The results were classed and indexed (C/P), the groundwater was very lightly contaminated with Cd (<0.1), heavily contaminated with Fe (0.51-0.75), very lightly contaminated with Cr (<0.1), and moderately contaminated with Cu (0.26-0.50). Based on the R value of the four metals, it shows that there was a very high influence between the distance between the well water sample and the former solid waste disposal leachate product.

Contamination of Mercury (Hg) and Lead (Pb) in Seawater and Sediments in Coastal waters of Ohoitel Village, Southeast Maluku District

Along with the increasing population in the coastal area of Ohoitel Village, it triggers the level of community settlement with an increase in anthropogenic activities. This study aims to determine the concentration of heavy metal mercury (Hg) and lead (Pb) dissolved in water and accumulated in sediments. Measurement of heavy metal levels using Atomic Absorption Spectrophometer (AAS). The results of the analyis og Hg content obtained in seawater at station I was 0.00100 ± 0.00007 mg/l, station II was 0.00096 ± 0.00026 mg/l and station III was 0.00101 ± 0.000026 mg/l. The results of Hg levels obtained in sediment at station I amounted to 0.08557 ± 0.0003 mg/l, station II amounted to 0.07761 ± 0.0004 mg/l and station III amounted to 0.08733 ± 0.0004 mg/l. The results of the analysis of Pb content in seawater at station I was 0.00050 ± 0.000003 mg/l, station II was 0.000047 ± 0.000003 mg/l and station III was 0.000038 ± 0.000005 mg/l. Based on the results obtained, it shows that it is still below the quality standard threshold that refers to PP RI No 22 0f 2021 for water and ANZECC 2000 for heavy metal Hg in sediment and USEPA for heavy metal Pb in sediment

Determination of some heavy metal concentrations in water and sediment of River Gidin Dorowa, at Gidin Dorowa, Taraba, North Eastern Nigeria

This study examined some heavy metal concentrations in water and sediment of River Gidin Dorowa, Taraba, North Eastern, Nigeria. It was examined with atomic absorption spectrophometer (AAS) buck scientific model 210 VGP. Mean concentrations of metals in water and sediment showed significant (p< 0.05) during the study period between September, 2022 to February, 2023. Samples were collected upstream and downstream at River Gidin Dorowa. Higher mean value (0.3087 mg/l) was reported for lead (Pb) in October compare to other metals with lower value (0.1647 mg/l) recorded in November. Zinc (Zn) recorded higher value (0.1334 mg/l) in September. Cadmium (Cd) recorded higher value (0.0170 mg/l) in September and lower value (0.0027 mg/l) in February. Heavy metals in sediment showed variation (p<0.05) between metal during the study. Cadmium recorded higher value (0.0154 mg/kg) in December and lower value (0.0087 mg/kg) in January. Lead (Pb) value (0.6380 mg/kg) was higher in January while lower value (0.3707 mg/kg) were observed in October and November. Zinc (Zn) recorded a higher mean value (1.6667 mg/kg) in October. Copper value showed higher variation (0.4000 mg/kg) in October and lower value (0.2667 mg/kg) in February. Monthly variation between water and sediment during the study period showed higher variation (0.3910 mg/kg) for Lead (Pb) in the sediment and water value (0.2880 mg/l) in September. Copper (Cu) value (0.1000 mg/l) in water was lower than values in the sediment. Mean Cadmium value for water (0.0027 mg/l) and value (0.0100mg/kg) in sediment showed variations (p<0.05) in February from other metals considered. The levels of Zn, Cu, and Cd in water and sediment at Gidin Dorowa for this study were generally low compared to safe limits recommended by WHO and USEPA except values of Lead (Pb) in water. Therefore, routine monitoring of the heavy metals’ concentrations in water and sediments of River Gidin Dorowa should be sustained.

Studies on some Physico-Chemical parameters and heavy metals concentration in the tissues of Oreochromis niloticus and Clarias gariepinus from Amansea River of Anambra state, Nigeria

The physico-chemical parameters of Amansea River and the bioaccumulation of heavy metals in two most prevalence fish species Oreochromis nilotics and Clarias gariepinus of the river, were studied from February to September. The fish specimens were procured monthly from artisanal fisher folks from three sampling stations I, II and III. The samples were taking to the laboratory, and were analysed for heavy metals using 240 Version Atomic Absorption Spectrophometer (AAS) method. There were presence of Arsenic (As), Lead (Pb), Mercury (Hg), Chromium (Cr) and Cadmium (Cd) presence in the two fish species tested. The heavy metal ranking in descending order in O. niloticus are As>Pb>Hg>Cr>Cd, with mean concentration mg/kg-1 values of 5.093±0.153, 1.039±0.059, 0.134±0.012, 0.084±0.003 and 0.053±0.007 respectively, while C. gariepinus heavy metal ranking in descending order are Cd<As<Hg<Pb<Cr, with heavy metal mean plus standard deviation (SD) concentration mg/kg-1 values of 2.805±0.008, 2.784±0.058, 0.652±0.003, 0.555±0.008 and 0.365±0.026 respectively. The heavy metal concentration in the tissues of both fish species were higher than permissible limit for fish by the WHO/FAO of 0.2/0.5, 0.30/0.30, 0.05/, 0.05/0.05 and 0.020/0.02 mg/kg-1, rendering fishes from the river dangerous for human consumption. The physico-chemical parameters (To, pH, Salinity, DO, and Conductivity) of 280C, 6.60, 0.25ppt., 6.29mg/L-1 and 84.08us/cm-1 respectively were within the Federal Ministry of Environment standard for fish survival and growth. The high level of heavy metal concentration, calls for serious intervention, monitoring, control and management of activities going on along the river to prevent sicknesses associated with heavy metals bioaccumulation.

Evaluation of quality of some commonly used herbal medicinal plants in local markets of FCT, Abuja, Nigeria

The safety of herbal medicines has become a major concern to both national health authorities and the general public. Hence their production, quality, distribution and use are regulated. Some medicinal plants commonly used for malaria, diabetes and Tuberculosis and respiratory conditions were evaluated for qual-ity. The objective of the study is to assess some quality specifications, physicochemical and heavy metals of some medicinal plant extracts. The samples were identified, purchased, processed and analyzed using appropriate standards methods specified by WHO and AOAC; while the heavy metals content was analyzed using Atomic Absorption Spectrophometer (AAS). All the analyzed samples passed WHO permissible limit established for heavy metals content, however 42.8 and 21.4% of the samples failed moisture and ash con-tent permissible limits respectively. High level of moisture content will favor microbial and fungal growth and shortens shelf-life of the samples. The WHO maximum permissible limits for moisture and ash content are ≤15 and ≤8. The ash content was also above standard permissible limit in 80% of the samples, this could be associated to improper handling that has resulted to introduction of inorganic substances such as silica and other inorganic matters. The levels of heavy metals content were all below the WHO maximum per-missible limits. The moisture, ash and heavy metals are among the important parameters of medicinal plants that require frequent routine monitoring in order to ensure safety.

Determination of heavy metals concentration in water and sediment of river donga, Taraba state

This research was carried out to ascertain the heavy metals concentrations in water and sediments from River Donga upstream and downstream was investigated for a period of three months (October to December). The Result showed heavy metals concentrations were higher in sediments compare to water during the study period while downstream values were generally higher compare to upstream. Result for mean concentration of heavy metals variations in water and sediment varied significant (p>0.05) based on the two sampling locations upstream and downstream. The heavy metals concentration in water and sediments was examined using atomic absorption spectrophometer (AAS) Bulk scientific Model 210VGP. Concentrations ranking profile was found to be Zn >Ni>Pb >Cr>Cd. The maximum mean concentration of Zn recorded in the sediment was 0.700 mg/kg while the lowest value of 0.029mg/kg was recorded for Pb at the two locations while for water value (0.200 mg/l) were observed for Zn, Ni, and Cr in the months of October November and December respectively. The lowest value of 0.014mg/1 at both locations was recorded for Cr. Data for Cr, Ni, Pb. Pb were generally low throughout the study period. Zn concentrations in water at the sampled locations (upstream and downstream) throughout the study periods showed no significant difference (p>0.05). However, Cd, Cr, Pb and Ni show variations (p

Analysis of Trace Metals in Hand Dug Wells around Dumpsites in Okene Metropolis, Nigeria

This study examined the levels of trace metals in leachates from dumpsites and hand dug wells used as sources of drinking water by the inhabitants of Okene Metropolis, Kogi State Nigeria. This is important because the presence of toxic heavy metals in the environment continues to generate a lot of concern to environmental scientists, government agencies and public health practitioners leading to adverse health implications. The leachates and hand dug well water samples were collected during the wet season of 2019-2021 and analyzed for some selected trace metals (Cd, Cu, Ni, Pb, Zn, Cr, and Mn) using AA320N atomic absorption spectrophometer. The result showed that there was high concentration of most of the trace metals in the leachate samples compared to the groundwater samples with some of the trace metals above the maximum limit set by W.H.O. It is recommended that a systematic treatment of heavy metals concentration in hand dug well in the study area should be carried out regularly either through chemical precipitation, ion exchange or reverse osmosis.

Adsorptive behaviour of rutile phased titania nanoparticles supported on acid-modified kaolinite clay for the removal of selected heavy metal ions from mining wastewater

This study investigated the removal of metal ions pollutants in mining wastewater such as Mn (II), Fe (III), Pb (II) and Cu (II) ions by acid-activated kaolinite clay (AAC) and titanium (IV) oxide (TiO2) nanoparticles supported on the AAC (TiO2–AAC). TiO2 nanoparticles were synthesised using titanium salt precursor with leaves extract of Parkia biglobossa and impregnated on the AAC to develop TiO2-AAC as a nanoadsorbent. The AAC and TiO2–AAC nanocomposites were characterized using different analytical techniques. Actual concentrations of selected heavy metals in mining wastewater was determined prior and after treatment using the prepared adsorbents in batch adsorptive studies with atomic absorption spectrophometer. The characterisation studies confirmed that a rutile phase TiO2 was doped the on acid-activated kaolinite clay. Morphology analysis shows that the developed adsorbents were homogeneously dispersed and porous. The results of the surface area further revealed that the AAC, TiO2 and TiO2–AAC has 14.15, 10.23 and 32.98 m2/g, respectively. The percentage removal of heavy metals followed the order of TiO2–AAC > AAC due to the higher surface area and enhanced surface functionality of the former than the latter. The adsorption capacity increased from 86.13 to 91.99% (Fe (III)), 83.12 to 89.37% (Mn (II)), 68.48 to 81.95% (Cu (II)) and 29.49 to 32.39% (Pb (II)) from AAC to TiO2–AAC. The kinetic and isotherm models were best fitted by pseudo-second-order kinetics and Langmuir model. Whilst the thermodynamic investigation found that, the adsorption process was endothermic, spontaneous and chemisorption controlled. Conclusively, the TiO2–AAC nanocomposite exhibited better performance than AAC alone.

Determination of Some Heavy and Precious Metals from Printed Circuit Board (PCB) from a Television Set by Atomic Absorption Spectrophometer

Aim: This research work aimed to determine the concentrations of some heavy and precious metals from printed circuit board (PCB) of a television set using Atomic Absorption Spectrophotometer (AAS) in order to identify elements with higher concentration as target source of raw materials for metal recovery.
 Study Design: Grab sampling technique was applied in this study. The study area was a refuse dumb site at computer village Ogbunabali, Port Harcourt.
 Place and Duration of Study: This study was carried out at computer village Ogbunabali, Port Harcourt, Rivers State, Nigeria between 2020 and 2021.
 Methodology: The metal fractions attached to the PCB were subjected to mechanical separation, placed inside a 75ml Kjeldahl flask and thereafter digested with a 20ml nitric acid (HNO3). The prepared sample was filtered, then made up to 100ml using distilled water and analysed using AAS (Shimadzu model AA6300).
 Results: The results showed the presence of some heavy metals such as: (Fe,0.0644mg/l, Pb, 0.0732mg/l, Cu,0.0627mg/l, Ni, 0.1076mg/l and Cd, 0.0001mg/l) in higher concentrations (apart from Cd) than the precious metals (Au, 0.0297mg/l, Pd, 0.0042mg/l, Ag, 0.0316mg/l and Li, 0.0019mg/l). This confirmed that the PCB which is an electronic waste was largely made up of heavy and precious metals.
 Conclusion: Metals can be determined effectively from electronic waste using HNO3 and AAS. It is therefore, recommended that proper recycling methods should be put in place in order to reduce the pollution caused by these electronic wastes.

Evaluation of some heavy metals and physicochemical properties of public refuse dumpsites in Nsukka metropolis, Nigeria.

This study assessed some physicochemical properties and heavy metal contamination of four major dumpsites in Nsukka metropolis. Soil samples were collected randomly at depth of 15cm. Physicochemical properties were determined. Levels of lead, chromium, iron, manganese, zinc, cadmium, and copper were analyzed using atomic absorption spectrophometer (AAS). Soil pH ranged 5.68-6.82, temperature 25.30-29.67° C, and moisture 2.23-7.66%. Soil particle size distribution had higher percentages of sand 40-55% followed by silt 15-35% and clay 10-30%. Average levels of Pb, Cr, Fe, Mn, Zn, Cd, and Cu from the dumpsites ranged from 0.08 ± 0.04mg/kg to 1.40 ± 0.15mg/kg, 0.17 ± 0.09mg/kg to 1.66 ± 0.87mg/kg, 14.05 ± 5.13mg/kg to 21.08 ± 0.01mg/kg, 4.47 ± 0.54mg/kg to 16.83 ± 0.80mg/kg, 9.10 ± 3.05mg/kg to19.33 ± 0.12mg/kg, 0.02 ± 0.01mg/kg to 1.15 ± 0.30mg/kg, and 0.77 ± 0.26mg/kg to 7.29 ± 2.65mg/kg, respectively. Heavy metal profile in the dumpsite soils was Fe > Zn > Mn > Cu > Cr > Pb > Cd. Heavy metal load by dumpsites was Obimo > Ikenga Hotel > UNN > Obukpa. All the heavy metals evaluated except Fe increased as pH, temperature, and sand contents of dumpsite soil increased. Retention of Fe by soil was positively related to its clay contents. The values of heavy metals in soils from the dumpsites were far below the permissible limits set by European Regulatory Standard (EURS STD), US Environmental Protection Agency (USEPA), and Federal Environmental Protection Agency (FEPA) for standard soil. The dumpsites require no remediation as at the time of this study.

PH Variations and Chemometric Assessment of Borehole Water in Orji, Owerri Imo State, Nigeria

Inhabitants of Orji are still pending on borehole water for drinking water without any treatment. The storage of this water in household containers for a long time as well as the handling might lead to a quality deteriorated and become unsuitable for human consumption. The study therefore evaluated the effect of long storage on pH values as well as determined the total concentrations of Ni, Cd, Cu, Pb and Fe in 10 borehole water samples from Orji. The pH was determined using Jenway 3510 pH meter while Perkins Elmer Analyst Atomic Absorption Spectrophometer was used for heavy metals determination after acid digestion. The results obtained were compared to National Agency for Food Drugs and Control (NAFDAC) and Standard Organization of Nigeria (SON) standard and were chemometrically assessed. The mean concentrations of the studied metals were below standard. pH continually increased with storage but did not exceed the standard range of (6.3/6.5-8.5) set by SON/NAFDAC over 12 weeks. Chemometric assessment such as linear regression analysis revealed positive association between pH values and metal concentration. The association were in the order of significant pH/Fe (0.202)>pH/Cd (0.169)>pH/Ni (0.161)>pH/Pb (0.123) respectively. Spearman’s correlation revealed similar source(s) of contamination of the studied metals except for Fe. Coefficient of Variation (CV) showed low variability (<20). Contamination Factor (CF) showed low contamination (<1), except for Cadmium which showed moderate to considerable contamination. Pollution Load Index (PLI) showed no pollution (<1) while mean WQI revealed “poor quality water” with WQI of 100.5 based on the studied metals. Therefore, precaution should be taken when consuming stored borehole water from Orji.

Post-Remediation Assessment of Crude Oil Polluted Site at Kegbara-Dere Community, Gokana L.G.A. of Rivers State, Nigeria

Post-remediation assessments of crude oil polluted sites at Kegbara-Dere community in Gokana Local Government Area of Rivers State, Nigeria were carried out to ascertain the degree of success of remediation work done by SPDC in the area in 2008. Soil samples were collected from 3 sites within the location viz; crude oil polluted unremediated site (A), crude oil polluted remediated site (B) and a control site of no pollution and remediation (C). Soil samples were collected at 3 soil depth levels of 0-5cm, 10-15cm and 20-25cm using soil auger and analysed for soil , conductivity, phosphate, nitrate, total organic carbon (TOC), total hydrocarbon content(THC) and total exchangeable cations (TEC). Soil pH and conductivity were obtained with a pH meter (Hanna Hi 8314) and conductivity meter (HACH Ecttesr microprocessor series) respectively. Total hydrocarbon content was measured by spectrophotometric method; total organic carbon content by oxidation method; nitrate content by Kjeldahl method, Phosphate content by ascorbic acid method and total exchangeable cations (Na + , K + , Mg 2+ and Ca 2+ ) by Atomic Absorption Spectrophometer method (AAS). Result showed no significant difference in the soil pH between and within sites. Soil conductivity, nitrate and phosphate improved significantly in the remediated site than the unremediated site. There was a drastic reduction in the total hydrocarbon content (THC) in the remediated site with the highest value of 100 mg/kg as against 350 mg/kg in the unremediated site. Total organic carbon (TOC) fluctuated between and within the 3 sites in the range of 3.63 - 4.11%. Ca 2+ was undetected in the remediated site especially at the 20- 25cm soil depth. This is an indication that the remediation carried out was successful.

Evaluation of micromineral status and ovarian hormonal profile and their interrelation in normal cyclings and repeat breeding cows

Blood samples from 12 normal cycling and 12 repeat breeding crossbred cows were collected aseptically on different phages of oestrous cycle to elucidate the possible relationship between the trace elements and hormone profile of ovary in normal cycling and repeat breeding cross bred cows. Different trace elements namely Fe, Cu, Zn and Mn were estimated using Atomic Absorption Spectrophometer (AAS) and serum oestradiol 17-β and progesterone were estimated using coatA-count ® RIA kit. Fe, Cu and Mn concentration was observed apparently high and Zn concentration was significantly (Pβ0.05) high in each phase of collection in normal cycling cows from repeat breeder except mid luteal phase. Oestradiol 17-β concentration was significantly (Pβ0.01) high in normal cycling cows in oestrous and early luteal phase, while no significant variation was observed for progesterone concentration between the same phase of the two groups. A positive significant (Pβ0.01) correlation was observed between Fe-Zn and Cu-Zn (Pβ0.05) and oestradiol 17-β (Pβ0.05) in normal cycling cows . In repeat breeding cows Fe and oestradiol 17-β and Mn and progresterone was positively significant (Pβ0.01).

Cadmium status among pediatric cancer patients in Egypt.

Cadmium (Cd) is a toxic, nonessential, and bio-accumulating heavy metal widely used in industry. Several studies have suggested a positive association between Cd exposure and risks of several cancers. However, data from general population, especially children are sparse.In the current cross-sectional case–control study, we aimed to assess the association between Cd exposure, as expressed by Cd body status (blood, urine, scalp hair, and nails) and cancer among Egyptian children. Three hundred and fifty pediatric cancer cases aged 3 to 14-years old were enrolled in our study. Their body Cd levels were evaluated using Atomic Absorption Spectrophometer and were compared with Cd levels of 350 healthy children.Significantly higher Cd levels (blood, urine, scalp hair, and nails) were documented in cancer cases when compared with control (P < 0.001). Such difference was still detected when comparing each malignant type separately, with controls. Tobacco smoke exposure, rural residence, and low socioeconomic status were reported more frequently among cases than comparisons.Positive association between Cd exposure and pediatric malignancy may be present.

Effect of trinitroglycerin therapy on serum zinc and copper levels and liver enzyme activities in BALB/c mice infected with Leishmania major MRHO/IR/75/ER.

To evaluate the effect of trinitroglycerin (TNG) as nitric oxide donor agent on serum copper (Cu) and zinc (Zn) levels and liver enzymes in BALB/c mice infected with Leishmania major (L. major) MRHO/IR/75/ER. Inbred female mice were divided into three groups: healthy group (uninfected naive mice), control group (infected with L. major), and test group (L. major infected mice treated with TNG). TNG (200 µg/µl) was inoculated subcutaneously into the mice of the test group. Serum Cu and Zn levels and liver enzymes activities were then evaluated by atomic absorption spectrophometer and colorimetric methods, respectively. Serum Cu levels were significantly higher in the test group than in the control and naive groups (P-value <0.05), while Zn levels were higher in the test group than in the control group with no significant difference. Serum glutamicoxaloacetic transaminase concentrations in the test group were significantly lower than those in other groups (P-value <0.05), while serum glutamate pyruvic transaminase concentrations were significantly higher in test compared with those in other groups (P-value <0.05). Moreover, alkaline phosphatase in the control and test groups were significantly lower than that in the naive group (P-value <0.05). TNG treatment increased Zn and Cu levels and thus increased resistance to Leishmania because of the role of Zn and Cu; therefore, TNG therapy will be useful for treating cutaneous leishmania. In addition, the decrease of serum glutamicoxaloacetic transaminase activity can be an index of therapeutic process of TNG.

A comparative study on some biological constituents in serum during normal and sub-oestrous cycles of crossbred cows of Asom

A total of ten normal cyclic and ten confirmed sub-oestrous cows yielding 10 – 20 liters of milk were selected at random for this study. Blood samples were collected from each animal on day 0, 5 ,10, 15 and 20 ( day 0 of the next cycle ) and each sample was analyzed for estimation of calcium, inorganic phosphorus, sodium, potassium, total protein, glucose, cholesterol, alkaline phosphatase, iron, magnesium, copper and zinc by using quality kits when cobalt was determined with the help of Atomic Absorption Spectrophometer. The result revealed that the mean serum concentrations of sodium, iron, copper and zinc, glucose, cholesterol and alkaline phosphatase varied significantly ( P

Impact Of Quarry Effluent Discharge On Heavy Metal, Chlorophyll , Vitamin And Proximate Composition Of Selected Vegetables From Ishiagu Ebonyi State, Nigeria

Heavy metal, chlorophyll, vitamin and proximate composition of selected vegetables in Ishiagu, Ebonyi State Nigeria as influenced by quarry effluent discharge were screened. Fresh samples of vegetables were collected from farms around Ishiagu quarry sites. Heavy metals were analyzed using Atomic Absorption Spectrophometer (ASS) while standard analytical methods were used to analyze other parameters. Results showed that lead concentration ranged from 0.0020±ooo a -0.019±0.00 a in the test samples while the other heavy metals also showed significant increase in all the plants when compared to control p<0.05.Result also showed a significant decrease in chloropylla, chloropyllb and Total chlorophyll of the test samples analysed when compared to control.

Temperature Effect on Water Extractability of Cadmium, Copper, Lead and Zinc from Composted Organic Solid Wastes of South-West Nigeria

The effect of temperature changes (10 to 80 °C) on water-extractable metal (Zn, Cu, Cd and Pb) concentrations of composted wastes of Nigerian origin was investigated in batch extraction experiments. Metal concentrations were measured using a calibrated atomic absorption spectrophometer after acid digestions. Results showed that the water-extractable metal fractions (I) did not exceed 10% of total metal concentrations of the bulk composts, which corresponded to 0.30 to 6.63% for Zn, 0.09 to 7.51% for Pb, 1.83 to 9.29% for Cu and 0.67 to 9.23% for Cd. Water extractable metal fraction showed positive correlations (r = 0.137 to 0.917*; p* < 0.01) for Cu, Cd and Pb in most cases but negative for Zn (−0.067 to −0.445). Simulations revealed that a steady temperature rise from 0.1 to 1.5 °C might increase I by 0.13 to 168% for all the metals, although stability to gradual temperature rise was demonstrated in some instances. The study revealed that the degree of temperature effect on water extractability of heavy metals from the bulk composts was dependent on metal type, compost formulation and waste type.

Serum and Hair Levels of Zinc, Selenium, Iron, and Copper in Children with Iron-Deficiency Anemia

In the present study, the serum and hair levels of zinc, selenium, and copper were determined in children with iron-deficiency anemia (IDA). A total of 52 anemic children aged 1-4 yr constituted the study group. Forty-six healthy children acted as controls. The copper and zinc levels were measured with an atomic absorption spectrophometer. Serum and hair selenium was determined by a spectroflourometric method. The serum zinc and selenium concentrations in the IDA group were found to be significantly lower and serum copper significantly higher than those in the controls (p < 0.05). Lower iron, zinc, and selenium concentrations (p < 0.001) but not copper were found in hair (p > 0.05).