Abstract Human survival is largely dependent on the quality of available drinking water. It worth knowing that water from any source contain amount trace elements. This study investigated physiochemical parameters and analyzed elements concentration in Ogun State, Southwestern Nigeria. Water samples were collected all local government areas State. The pH, electrical conductivity element each sa...

BACKGROUND Daily bathing with antiseptic cleansers are proposed by some physicians as an adjunctive management of atopic dermatitis (AD). As atopic skin is sensitive, selection of cleansing products becomes a topic of concern. OBJECTIVE Our purpose is to evaluate the pH of various antiseptic body cleansers to give an overview for recommendation to patients with AD. METHODS Commonly bar and ...

The aim of this study was to assess the erosive potential of some soft drinks commonly consumed in Nigeria. A range of popular carbonated drinks (cola and non-cola) and fruit juices were selected. On two occasions, the followings were determined; (1) the pH, measured by a digital pH meter on opening of the packaging can or bottle. (2) The volume of 1.0M sodium hydroxide required to raise the pH...

BACKGROUND Patients with atopic dermatitis (AD) have increased susceptibility to irritants. Some patients have questions about types of water for bathing or skin cleansing. OBJECTIVE We studied the pH of water from various sources to give an overview for physicians to recommend patients with AD. METHODS Water from various sources was collected for measurement of the pH using a pH meter and ...

A new optical pH sensor based on polysulfone (PSU) and polyaniline (PANI) was developed. A transparent and flexible PSU membrane was employed as a support. The electrically conductive and pH-responsive PANI was deposited onto the membrane surface by in situ chemical oxidative polymerization (COP). The absorption spectra of the PANI-coated PSU membranes exhibited sensitivity to pH changes in the...

STUDY OBJECTIVES The noninvasive assessment and monitoring of airway inflammation could be important in respiratory disease. The pH of exhaled breath condensate (EBC) is a promising marker. Although pH has been measured in the EBC of adults with inflammatory airway diseases, no study has measured this in children. DESIGN This study aimed to assess whether there is a change in pH in the EBC of...

For use in the calibration of electrometric pH assemblies, 17 standard buffer solutions have been investigated, and pH values at 20°, 25°. and 30° C have been assigned to them. The pH values of these solutions range from 2.27 to 11.68 and are considered accurate to ± 0.02 pH unit. Hydrogensilver-chloride cells without liquid junctions were used for establishing the precise pH values of the buff...

The activated first component of complement (CI) possesses an esterase activity in vitro which will hydrolyse an ester of tyrosine to release H+. The activity of the serum inhibitor of C1 esterase may be measured by monitoring its ability to prevent H+ release under standard conditions. This paper describes a method of measuring such activity, monitoring H+ release by the use of either an acid ...