a sodium dodecyl sulfate modified carbon paste electrode (sds/cpe) was developed in this work based on the surface modification method. the modified electrode was prepared by immersing sds/cpe in a nickel nitrate solution. this electrode showed a strong accumulation ability toward nickel ions. then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 v (vs. ...

A sodium dodecyl sulfate modified carbon paste electrode (SDS/CPE) was developed in this work based on the surface modification method. The modified electrode was prepared by immersing SDS/CPE in a nickel nitrate solution. This electrode showed a strong accumulation ability toward nickel ions. Then modified electrode was conditioned by potential recycling in a potential range of 0.2–0.8 V (vs. ...

The paper considers one of possible options for the waste-free processing dumped masses nickel slags, accumulated over years operation some enterprises. This process includes use hydroand pyrometallurgical processing, which results in three products: iron sulfate, ferrosilicon with a small admixture aluminum, and slag from smelting. has hardness 7-7.5 Mohs can be used as an abrasive powder sand...

In the past, exposure of workers to mixtures of soluble and insoluble nickel compounds by inhalation during nickel refining correlated with increased incidences of lung and nasal cancers. Insoluble nickel subsulfide and nickel oxide (NiO) are carcinogenic in animals by inhalation; soluble nickel sulfate is not. Particles of insoluble nickel compounds were phagocytized by C3H/10T1/2 mouse embryo...

BACKGROUND The epidemiology of contact dermatitis can be analyzed using clinical data from skin allergy units. OBJECTIVES The aims of this study were to define the profile of patients attending a skin allergy unit and to determine the prevalence of the most common sensitizations in this population. MATERIAL AND METHODS Throughout 2008, a retrospective observational study was carried out in ...

Dodecyl sulfate and dodecylbenzene sulfonate intercalated alpha-hydroxides of nickel and cobalt were synthesized by ammonia precipitation. These solids delaminate to give a colloidal dispersion of layers in organic solvents such as 1-butanol. The dispersed layers could be reassembled either by evaporation of the colloid or by coagulation by the addition of a polar solvent.

BACKGROUND Surveillance on common allergens identified by patch testing plays an important role in emerging allergen detection, which leads to both individual and societal level prevention. OBJECTIVE To study the changes in the pattern of contact sensitization and to identify risk factors associated with allergens. METHOD The data of 206 patients who underwent patch testing at King Chulalon...

BACKGROUND Topical over-the-counter remedies exist to aid in the control of seborrheic dermatitis and chronic dandruff on a superficial level. Low-dose systemic oral nickel and bromide therapy has shown promise in providing improvement and eventual clearing of the disease. OBJECTIVE The purpose of this study was to further evaluate the effect of an orally administered low-dose, homeopathic mi...