Tag Archives: Dr. Engr. A. K. M. Fazlul Hoque

WATER QUALITY ASSESSMENT USING PROTON INDUCED GAMMA EMISSION TECHNIQUE

see url Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

click ABSTRACT

For sustainable development, to assure health care services and for the protection of the human environment to ensure a quality of life, the knowledge of concentration on the environmental constituents is very much essential. In recent years the study of elements, both major and traces, especially related to environment has assumed increasing importance because of their vital role in human health and diseases. Fluorine is an essential element for both plant and animal life. A high incidence of caries has been shown by many investigators to be correlated with low fluorine inta:ke 6 •8•19. Excess intake of fluorine results in toxic symptoms described as fluorosis that causes many diseases like arthritis, Ia meness, pam. on movement, etc 6·1 71· 9-20 . The re,,..o re t h e concentratw. n o ffl uorm. e in drinking water is very important for human health. Nuclear analytical technique Proton Induced Gamma Emission (PIGE) method developed in the Van de Graaff Accelerator Laboratory of Atomic Energy Centre, Dhaka (AECD) was employed for the quantitative determination of fluorine in some water of Dhaka and its adjacent areas. Ion beam analysis technique PIGE was employed for the measurement of fluorinfi. because it is suitable and reliable for the analysis of fluorine content in water, b’i~a’il;e the determination of Fluorine is very difficult by non-ion beam techniques 5•18. The fluorine concentration in the drinking water of Dhaka ranges from 0.01 ppm to 0.46 ppm. The study indicates that the inhabitants of Dhaka have low intake of fluorine from their drinking water supplies.

For details please see the attached file


Trace Element Analysis by PIXE in Soil Samples of Hazaribagh Tannery Area

Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

go here Abstract

The trace elements level in 18 soil samples from Hazaribagh tannery area. Dhaka, Bangladesh, were determined using proton induced X-ray emission (PIXE) method. Cr content in the samples studied was found remarkably high, which is inherent in I ether tanning process. Cr concentrations varied from 105.7 5 to 5913.33 pg/g with a mean of 1672.23:1:45 !Jglg. Significantly increased amount of the elements K, Fe, Co. Ni, Cu, Rb and Sr was observed in the samples as well. Concentrations of K ranged from 4836.96 to 6730.38 !J.glg with a mean of 5537.50:H9 ~tg/g. Concentrations of Fe ranged from 21551.53 to 37306.17 pg/g with a mean of 29073.24131 11g/g. The mean concentrations of Co, Ni, Cu. Rb and Sr were 46.471..16, 47.19:t3, 32.7H3, 176.80H5 and 125.30UO ~tg/g, respectively. The concentrations ofTi, Mn, Zn, As, Br, Zr and Pb were in the same order as in IAEA standard soil-7 sample. But the concentrations of toxic elements As and Pb were higher than the standard concentration. The presence of the elevated amount of the hazardous heavy metals was primarily due to extremely high concentration of these elements in tannery effluent discharging to the ground without proper treatri1ent.

For details please see the attached file


Study of Trace Elements in Human Milk using PIXE-PIGE Technique

oder viagra Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

go to site Abstract

Trace elements level in 30 human milk samples were determined using proton induced X-ray emission (PIXE) techniques to reveal what types of nutrients are passed from mothers to babies. Wide variation in concentration of different elements was found. Concentrations of K, Ca and Zn were found sufficiently high. Concentrations of K range from 727.5 to 1518.8 J.tg/g with a mean value of 1073.1±256.8 J.tg/g. Concentrations of Ca vary from 560.1 to 1172.0 J.tg/g with a mean of788.2±174.1 J.tg/g. Concentrations of Zn varies from 12.7 to 79.1 J.tg/g with a mean of39.8 ±19.9 J.tg/g. Concentrations ofFe range from 13.2 to 78.8 J.tg/g with a mean of 40.02 ±22.3 J.tg/g. Mean value of Sc was found 23.4±5.0 J.tg/g. So far the toxic elements like arsenic, lead, etc were not detected in the human milk samples analyzed. Study indicates wide variation of nutritional status of mothers of Bangladesh.

For details please see the attached file


PROTON INDFCED G~\1MA EMISSION (PIGE) TECHNIQUE AS A TOOL FOR :MATERIALS ANALYSIS

source link Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

Growing population, intensification of agriculture, increase in trading, industrial and other economic activities are affecting the quality of life in many different ways. As a result detetioration of the environment and its consequent effect on human health has emerged as a major concern all over the world. Depletion of the soil nutrients and its effect on productivity, quality of industrial product and their improvement are also major concerns in today’s world.

In order to regulate the activities in all these areas and in order to ascertain human health and to improve the quality of life, it is necessary to analyze different materials using different analytical tools available to science. The accelerator based nuclear related methodologies are playing increasing role in such analyses because of the power and versatility of the methods in the different areas of application.

Proton Induced Gamma Emission Method with the 3 mv van de Graaff Accelerator

source url Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

cialis online cheap no prescription Abstract

Proton induced gamma emission (PlGE) method has been developed at the Accelerator Laboratory of Atomic EnergyCentre, Dhaka (AECD) for analyzing low Z elements in the range of 3 to 15. With a view to exploiting the potential of PIGE technique as a tool for practical applications, attempts have been made to find the experimental evidence for its capability and scope. Gamma ray yields from PIGE experiments and the sensitivity for some low Z elements such as lithium, fluorine, boron, sodium, magnesium, silicon, beryllium and oxygen have been measured at proton energy 2.9 MeV in order to assess its capability and to identify its limits. The PIGE method has also been utilized for isotopic speciation of different isotopes of magnesium present in local vegetables to assess its suitability for the analysis of isotopes of different elements present in samples of interest. Present study demonstrates the characteristics of the PIGE method that establish it as a reliable and useful technique capable of rendering analytical services especially in the health and environmental sectors.

For details please see the attached file



PIGE Elemental Analysis of Arable Soil

Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

cialis dosage hypertension Abstract

The elemental concentration of arable soil samples collected from different areas of Savar were measured by proton induced gamma emission (PIGE) analytical technique. The samples were  irradiated by the proton beam obtained from the 3MV Van de Graaff accelerator at the AECD (Atomic Energy Centre, Dhaka). The characteristic gamma emitted from the exited nuclei of the irradiated samples were detected by a HPGe spectrometer system. The following elements were detected Na, B, Mg, Sc, Li, Cl, F, and P and their concentrations were obtained by comparing the PIGE gamma yields with that of the standards such as USGS geological standards, AGV-1 and Soil-7. Finally the results of the experiments were discussed in the light of elemental deficiencies or the toxicities in the arable soil of Savar and the likely impact they may have on the growth and yield of specific vegetables grown in the area.

For details please see the attached file


Fluorine Level in some City Water Supplies of Bangladesh

Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

Abstract

Nuclear reaction based Proton Induced Gamma Emission (PIGE) analytical method was employed for the quantitative measurement of fluorine in the city water supplies of the major cities of Bangladesh. 102 water samples collected from 14 city supplies were analyzed and these samples contain fluorine in the range of 0.03 to 1.1 0 mg/L with a mean of 0.33 ± 0.21 mg/L. It was also observed that except the samples of Barisal, Dinajpur and Rajshahi, all other water samples analyzed contain a much lower amount of fluorine than the maximum permissible value for Bangladesh in drinking water, which is 1 mg/L. The mean concentration of fluorine in the samples of Barisal, Dinajpur and Rajshahi are respectively 0.79±0.01, 0.71±0.13 and 0.92±0.18 mg/L. For the 55 samples of Dhaka city supply the mean fluorine concentration is 0.31±0.17 mg/L and that of 9 samples from Chittagong city supply is 0.19±0.1 0 mg/L, which is the lowest among the 14 city supply samples analyzed in this study.

For details please see the attached file


FLUORIDE, MAGNESIUM, AND SODIUM IN DENTAL CHEWING STICK PLANTS USED IN BANGLADESH

Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

SUMMARY:

Proton induced gamma emission (PIGE) reactions were employed for determining fluorine (F), magnesium (Mg), and sodium (Na) concentrations in  samples of some pharmacologically important plants used to make dental chewing sticks in Bangladesh. The amount ofF in the samples (above the method detection limit of 12 mg/kg dry sample) ranged from 50±19 to 222±17 mg/kg, with the highest  concentration found in Neem leaves. In plant trunk samples the highest level of F (122±14 mg/kg) was found in the Bely-asra plant, but no F was measured in trunk samples of Nishinda, Neem, or Bohera. Likewise, no F was found in trunk samples of Joytun (the most popular chewing stick source used by devout Muslims), nor in such samples of Kaminee, Akondo, Batul, Olut-kumbal, and Sheora. The biologically important elements Mg and Na were also measured and were present in the range of 3231±81 to 7430±299 mg/kg and 10±2 to 1521±8 mg/kg, respectively. Bohera leaves contain the highest amount of Mg, and Joytun trunk samples have the highest level of Na. These findings may be important in considering the value of these chewing sticks on dental and oral health.

For details please see the attached file


FLUORIDE LEVELS IN DIFFERENT DRINKING WATER SOURCES IN BANGLADESH

Author
Dr. Engr. A. K. M. Fazlul Hoque
Professor
Natural Sciences
Daffodil Internation University

https://www.apprhs.org/heartbeat/ed/one-a-day-cialis-side-effects.html Summary

The fluoride levels in 304 water samples from different sources in Bangladesh were determined using the proton induced gamma emission (PIGE) method. Concentrations vary from 0.02 to 2.32 mg/L with a mean of 0.43 ± 0.40 mg/L In tube well water the concentrations range from 0.02 to 2.32 mg/L for 163 samples with a mean of 0.56 ± 0.48 mg/L. Surface waters contain the lowest amount of fluoride with a mean of 0.14 ± 0.10 mg/L for 23 samples. In rain water the mean fluoride content is 0.26 ± 0.13 mg/L, slightly higher than in surface water. The concentration of fluoride in 102 city water supplies ranges from 0.03 to 1.10 mg/L with the mean of 0.33 ± 0.21 mg/L These results indicate that the fluoride level in groundwater is, in general, lower than the maximum official permissible limit of 1 mg/L in drinking water set for Bangladesh.

For details please see the attached file