نتایج جستجو برای: cadmium ion
تعداد نتایج: 227697 فیلتر نتایج به سال:
Integumentary uptake of L-[(3)H]histidine by polychaete worms (Nereis succinea) from estuarine waters of Oahu, Hawaii was measured in the presence and absence of calcium and cadmium using a physiological saline that approximated the ion composition of 60 % sea water. In this medium 1 micromol L(-1) cadmium significantly increased (P<0.01) the uptake of 10 micromol L(-1)L-[(3)H]histidine, while ...
Increasing the tolerance of plants to biotic and abioticts stresses is a important and debatable subject. Selenium can play a role in mitigating the effects of stress. For this purpose, a factorial experiment was conducted in a completely randomized design with two treatments, cadmium chloride including two levels (0 and 10 mg /kg) in soil and sodium selenate involved three levels (0, 500 and 1...
Background and Aim: Cadmium (Cd) is one of the most toxic heavy metals in water that mostly enters the water cycle through industrial waste water. Silver nanoparticles have the capacity to remove heavy metals from the water resources through the mechanism of adsorption. The present study aimed at producing silver bio-nanoparticles and optimizing . Cd removal from aquatic solutions. Mat...
TACN (1,4,7-triazacyclononane) derivatives with three 6-methoxy-2-quinolylmethyl or 1-isoquinolylmethyl moieties were examined as fluorescent zinc sensors. Upon the addition of zinc, 6-MeOTQTACN (5) exhibited a 9-fold fluorescence increase at 420 nm (λex = 341 nm, ϕZn = 0.070). Fluorescence enhancement is specific for zinc and cadmium, although cadmium induces smaller increases (ICd/I0 = 3.6 an...
Background and Objective: Cadmium is a potential environmental contaminant that causes adverse effects on the environment and the health of living organisms. Therefore, designing a simple and economic technique for its determination is very important. In this respect, a potentiometric sensor based on nefazodone as the ionophore and [BMIM]PF6 as the ionic additive were developed for the determin...
The Schiff bases (H3L), derived from 2-acetylpyrrole and carbonohydrazide, and its reactions with some transition metal ions (Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)) afforded complexes of formulae [M(H5LA)2(H2O)x]∙2(NO3)∙(CH3CN)z∙(H2O)y-x (M= Co, Ni, Cu or Zn ; 0 ≤ x < y ≤ 3, z = 0 or 1) and {Cd(H4LA)(NO3)}n. These compounds have been characterized by means of elemental analysis, UV–Vis spec...
Nowadays, ion implantation is an extensively used technique for material modification. Using this method, we can tailor the properties of target materials, including morphological, mechanical, electronic, and optical properties. All of these modifications impel nanomaterials to be a more useful application to fabricate more high-performance nanomaterial-based devices. Ion implantation is an acc...
Bruland, K.W., Coale, K.H. and Mart, L., 1985. Analysis of seawater for dissolved cadmium, copper and lead: an intercomparison of voltammetric and atomic absorption methods. Mar. Chem., 17: 285--300. An intercomparison study of voltammetric and atomic absorption spectrometric methods for determining cadmium, lead and copper in seawater samples was conducted. The voltammetric approach utilizes d...
The effect of ammonia concentration on electrical properties, optical properties and structural properties of chemical bath deposited (CBD) Cadmium sulphide (CdS) thin films has been revealed. The films were prepared by using cadmium acetate as cadmium ion (Cd) source, thiourea as sulphur ion (S) source and ammonia as the complexing agent. Ammonia concentration was changed from 0.1 M – 3.0 M. A...
OBJECTIVE To study the possible effect of angiotensin II type 1 Receptor blocker (AT1 blocker) on renal function, arterial blood pressure and parathyroid hormone related protein over expression in cadmium induced nephrotoxicity in adult male rats. Forty five rats were divided randomly into a control (group I), group II, received cadmium chloride at a dose of 5 mg/kg/day, orally, for nine weeks,...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید