Measurements of carbon disulphide and hydrogen sulphide in a Belgian viscose rayon plant, using personal monitoring with charcoal tubes for carbon disulphide and impingers for hydrogen sulphide,… (More)
Sequestration of Pb by synthetic chelates has been reported to increase bioavailability, uptake, and translocation of this metal in plants. In this work the potential phytotoxic effects of Pb-EDTA… (More)
Biological monitoring for carbon disulphide (CS2) exposure performed using the iodine-azide test (IAT) and 2-thiothiazolidine-4-carboxylic acid (TTCA) test in urinalysis of workers with high exposure… (More)
The composition and stability constants of the complexes formed between Ni(2+) and Zn(2+) and 3-mercaptopropionic acid (3-MPA) were studied by a potentiometric method at 25 degrees and in 0.5M… (More)
From a mathematical treatment, it has been proved that a family of formation curves shows a real cross-over point in the following cases: (a) a mixture of mononuclear complexes BA, BA(2) ... BA(N)… (More)
BACKGROUND
Some case reports concerning the concomitant presence of congenital melanocytic naevi (CMN), halo naevi and vitiligo have been published. However, their possible link has never been… (More)
By means of potentiometric pH and pAg measurements, the stability constants and the stoichiometric composition of the silver(I) complexes of some N-methyl-substituted 4-H-diethylenetriamines, in… (More)
A new lead amalgam/lead sulphate electrode has been developed which is easy to handle and can be used in a simple measuring cell. Its electrochemical characteristics have been tested in two different… (More)
The microscopic acidity constants of the diprotonated asymmetric N-methyl-substituted ethylenediamines and N-methylpiperazine were determined by using the change of the chemical shift of the methyl… (More)
In a further attempt to enhance the possibility of interpreting the formation function, a number of special shapes of the formation function are discussed, which give rise to a pseudo cross-over… (More)