منابع مشابه
Fluorescence and Proton Nuclear Magnetic Resonance Studies of Thallous Ions - Crown Ether Complexes in Organic Solvents
Photochemistry, Fluorescence, Crown Ethers, Biology The complexing of thallous ions (T1+), with the crown ether dibenzo 18 crown-6 polyether (DB) has been studied by NMR, fluorescence, and pulse radiolysis techniques. NMR data show a strong interaction of the T1+ ions with the aromatic moieties. This is also illustrated by a static quenching of the aromatic fluorescence by Tl+. The rates of rea...
متن کاملpostnatal studies of bats (pipistrellus kuhlii and miniopterus schreibersii) & histomorphology and histochemistry studies of organs and diseases of (neurergus microspilotus and n. kaiseri)
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
INVESTIGATIVE OPHTHALMOLOGY Thallous ion and the eye
The storage of thallous ion in ocular structures has been studied with the aid of the radioactive isotope Tl. Thallous ion stores in the eye by at least two different mechanisms. The first of these is the storage on melanin pigment. This results in exceptionally high Tl levels in iris, choroid, and ciliary body of pigmented but not albino animals. The second storage mechanism is based on the si...
متن کاملInhibition of mitochondrial potassium ion flux by thallous ions.
extramatrix concentrations of ATP, ADP and Pi and the matrix volume being determined in parallel. As is shown in Fig. I , the thermodynamic relation is consistent with a mean stoicheiometry of 2.66+0.01-+ H+/ATP obtained by linear regression forced through the origin. As any systematic error in matrix volume or in activity coefficients for the isotopic indicators of membrane potential or pH gra...
متن کاملChromate Adsorption by Kaolinite
Chromate (CrO4 2-) adsorption was investigated on kaolinite (0.2-2 ~m) saturated with NaC104 over a range of pH. Adsorption increased with decreasing pH because of protonation of chromate and/ or variable charge sites on kaolinite. Chemical pretreatment to remove noncrystalline and crystalline oxide contaminants affected the magnitude ofCrO42adsorption, but not the pH range over which CrO42adso...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1953
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.74.219