نتایج جستجو برای: spectrophotometery
تعداد نتایج: 108 فیلتر نتایج به سال:
Introduction & Objective: Tea is the most popular beverage in the world and contains several essential nutrients, which are beneficial for human health. Because the contamination of tea leaves by heavy metals may pose a serious threat to human, this study was carried out for analysis and health risk assessment of As, Pb, Cd and Cr in some black and green tea brand samples marketed in Hamadan Ci...
Background : Heated meat products such as sausage are one of the most adherents in Iran. So it needs to be controlled and detected its fault for food security. The aim of the study was to determine the amount of Hydroxyproline in sausages produced by manufactures located in khorramabad. Materials and Methods: This cross sectional study was carried out on 30 samples of sausages produced by G...
Background: Blood hemoglobin can be damaged by toxins such as lead. Thus, this study was carried out to assess its blood hemoglobin concentration in the staff of Kermanshah Oil Refinery that had been exposed to lead components. Methods: In this study, 150 workers at Kermanshah Oil Refinery were selected as the case group and 70 workers of textile industry factory were chosen as the control gr...
background : the main objective of this research was to study photocatalytic oxidation of phenol in aquatic solutions by using of uv, tio 2 and the combination of them. phenol compounds are widely used in industries and other daily life. highly toxicity and carcinogenicity of these compounds can causal considerable adverse effects on the aquatic ecosystems and human health. methods : the study ...
vanillin is undoubtedly one of the most popular and widely used flavoring agents in the world. natural vanillin is extracted from vanilla beans and is relatively expensive. moreover, the consumer demand for natural vanillin highly exceeds the amount of vanillin extracted by plant sources. this had led to the investigation of alternative routes for its production such as microbial bioconversion....
violet is one of the ornamental plants with a good value in landscaping and herbal medicine. salicylic acid is a signaling agent involving in secondary metabolite production. the aim of this study was to evaluate the physiological responses of violet flowers to exogenous salicylic acid. this experiment was conducted in the greenhouse, as a completely randomized design. salicylic acid was spraye...
conclusions concerning the ability of salicorniaeuropea to survive in the contaminated areas, it might be suitable that endemic types of this plant would be cultivated in contaminated coast lines. results the highest uptake was at eight mg crude oil, per one g of soil and the least uptake was at 13.75 mg crude oil, per one g of soil. it seems that physical characteristics of crude oil are the m...
Background and Aim: Female pattern hair loss(female androgenic alopecia) is a common but puzzling condition in women which increases by aging. Female hair loss is strongly linked to hormones and hormonal imbalances. The aim of this study was to determine the serum level of hormones such as T4, TSH, free testosterone, Prolactin(PRL) and Alb, SHBG in women(15-50 years old) with hair loss versus t...
Turfgrasses are the most important cover plants in the world. Quality evaluation of the turfgrasses is usually done by experienced evaluators using color texture, density and uniformity. The results obtained by different evaluators may be different, leading to researcher’s concern. Therefore, some quantitative methods have been used for increasing the aquracy and stability in results. In this s...
Primary chronic forms of copper poisoning have been reported to occur in goats around the copper industries in Kerman province. The survey was carried out from autumn 2015 to the end of summer 2016, in Kerman province, Iran. Based on clinical signs, confirmed by necropsy and copper concentration of serum and different tissues, ten live chronic copper poisoned (CCP) goats were used in the study ...
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