ocular dryness is a well-recognized adverse side effect of many topical and systemic medications. in psychiatry, patients who have consumed such drugs as lithium carbonate and sodium valproate frequently experience dry eye symptoms. the purpose of this study was to compare tear film stability between patients who use these drugs with those patients who are not on medication.after obtaining info...

Experimental Reagents and chemicals m-Phenylenediamine (mPDA >99%) was purchased from Acros Organics, ethylenediamine (EDA, Sigma Ultra) was obtained from Sigma Aldrich. ortho-Phosphoric acid (85%, ACS certified) was purchased from Fisher Scientific. All the other chemicals were of analytical grade. Buffer solutions with different pH were prepared using chemicals (such as sulphuric acid, citric...

In this paper the writers present results which they obtained, for the most part, in making a comparative study of disinfectants that, might be used by poultrymen, a fact which accounts for the choice of test organisms and various other details of the technic. Although, as the title implies, this work was done chiefly with the hydroxide, carbonate, and phosphate of sodium, the paper also report...

Various concentrations of anionic surfactant, sodium dodecyl sulfate (SDS), were used to control the growth of calcium carbonate crystals. The obtained calcium carbonate particles were characterized by Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), laser scattering particle size analyzer and zeta potential analyzer...