Essays on pH Meter

Business Case

It is my hope that this finds you well. I am writing to report the case of a broken electrode. The broken electrode is a component of a pH meter belonging to the Soil Science Center (“The Agricultural Institute mystery: The case of broken electrode”). The pH meter was borrowed on Monday morning on the date of this email. The Insect Diagnostics Laboratory and the Soil Science Center have for a long time been sharing the equipment. Consequently, the borrowing of the equipment on this particular day was in the ordinary conduct of business in the two laboratories. The ...

Abstract

Color and texture are important attributes related to vegetable quality. The objective of this study was to determine the changes in quality characteristics, caused by cooking time, and pH (alkali and acid addition) in some vegetables. Four different vegetables — carrots, spinach, red cabbage and cauliflower — were analyzed for changes in color and texture associated to time of boiling, the effect of alkali (baking soda), and the effect of acid (vinegar and cream of tartar). Samples of each vegetable were prepared and treated for five minutes. Color change was measured visually and using the L*a*b* technique. Color and ...

Aim: To measure the partition coefficient values of sulphamidine and acetylsulphamidine present in water/octanol solution at different pH.

Abstract: After measuring the pH of the buffer solution, two lots of eight bottles were prepared. 5ml of drug and 5 ml of buffer solution were added to each bottle and shaken for 30 minutes. Absorbance was then of the solutions in the bottles was then determined. Introduction: Partition coefficient gives a measure of how a substance distributes in two different phase at equilibrium. Partition coefficient is utile in estimating the distribution of the drug within the body. There are two types ...