نتایج جستجو برای: hg

تعداد نتایج: 30963  

Journal: :veterinary research forum 2015
payvand maktabi mehran javaheri baboli ali reza jafarnejadi abolfazl askary sary

the karoun river is major source of water for warm water fish culture industry in southwest of iran. the aim of the present study was to investigate the distribution of mercury in tissues of marketable common carp and in bottom sediments of fish farms in khouzestan province. this study was carried out on 45 fish farms that are located on the bank of the karoun river in khouzestan province, sout...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1389

رشد و توسعه سنسورهای نوری شیمیایی (اپتود) نسبت به انواع دیگر سنسورها در سال های اخیر بسیار سریع و چشمگیر بوده است. استفاده از اپتودها به علت مزیت هایی نظیر حساسیت خوب، گزینش پذیری بالا، سهولت اجرا و کم هزینه بودن در شیمی تجزیه مورد توجه قرار گرفته است. طراحی اپتود مورد استفاده در این پروژه ، تثبیت شناساگر دی تیزون روی غشای تری استیل سلولز، برای اندازه گیری جداگانه ی cu(ii) و hg(ii) قبلا گزارش ...

Journal: :Environmental Science and Technology Letters 2021

Although fish is an important source of nutrients, including some the healthiest proteins, long-chain fatty acids, and essential selenium, species at top food chain frequently contain large amounts toxic mercury (Hg). The provisional tolerable weekly intake (PTWI) Hg from consumption calculated total concentration assuming that all speciated as organic methylmercury (MeHg). Using high energy-re...

Background and purpose: Today, environmental pollutions are of the most important issues and hazardous in food safety around the world. Given the importance of salt and water in dietary, and extracting them from Maharloo Lake, Iran, this study aimed to investigate the concentrations of heavy metals, as environmental pollutions, in salt and water of this lake at different seasons. Materials and...

Abolfazl Askary Sary Ali Reza Jafarnejadi Mehran Javaheri Baboli, Payvand Maktabi

The Karoun River is major source of water for warm‌water fish culture industry in southwest of Iran. The aim of the present study was to investigate the distribution of mercury in tissues of marketable common carp and in bottom sediments of fish farms in Khouzestan province. This study was carried out on 45 fish farms that are located on the bank of the Karoun River in Khouzestan province, sout...

A. Askary Sary , M. Khodadadi , M. Mohammadi ,

 The concentrations of Cd, Pb, Ni and Hg were determined in gill, liver and muscle of Barbus xanthopterus in down streams of Karoon and Dez Rivers during summer 2009. Heavy metal concentrations varied significantly, depending on the types of the tissue in fish species. The levels of heavy metals such as Cd, Pb, Ni and Hg in the Barbus xanthopterus of Karoon River were higher than in B...

Ahia Garshasbi, Farid Zayeri Maryam Kamali Tooba Ghazanfari,

Background and Objective: Hyperemesis gravidarum (HG) is defined as vomiting sufficiently severe to produce weight loss, dehydration, electrolyte abnormalities. Interleukin-6 (IL-6), a pro-inflammatory and trophoblast-derived cytokine has ability to induce trophoblasts to secrete human chorionic gonadotropin (hCG). The purpose of our study was to assay the level of IL-6 and β-hCG in serum of pr...

Gholam Reza Nabei Hamid Rashedi Mehdi Esmaeili Bidhendi, Naser Mehrdad

As the electrochemical method, the Fast Fourier Transform (FFT) Stripping Cyclic Voltammetry detection method was designed for measurement and monitoring of adsorbed mercury ions by new modified adsorbent based on mesoporous silica as a new adsorbent. In this respect, SBA-15 as mesoporous silica and 1, 3, 5 Trithiane as effective modifier ligand were chosen, and the modification process was car...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1389

بطور کلی، مطالعه بنیادی پدیده هایی که در ساختارهای دارای ابعاد nm 100-1 اتفاق می افتد، بصورت زمینه جدیدی از پژوهش در آمده است که علم نانو نامیده می شود. شیمی سوپرامولکولی جایگزین قدرتمندی برای روشهای ساخت نانو می باشد. از طرفی مهندسی کریستال در شیمی مدرن زمینه پژوهشی جدیدی است که از همپوشانی شیمی سوپرامولکولی و شیمی مواد حاصل شده است و می تواند بصورت مدل سازی، ساخت پایین به بالا و نیز برنامه ری...

Journal: :international journal of environmental research 2014
m. ghadaksaz zadeh m.s. sekhavatjou a. hosseini alhashemi a. taghinia hejabi

mercury is a dangerous and an extremely toxic element, which can transfer to the food chain.presence of this element in the atmosphere particularly during the rainy seasons cause soil and environmental pollution, therefore this research will evaluate the transformation of mercury vapor from the atmosphere through precipitation into the soil. in the present study, mercury concentrations were det...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید