Moore EW. Determination of pH by the glass electrode: pH meter calibration for gastric analysis. Gastroenterology. 1968; 54(4):501- 507.Moore EW (1968) Determination of pH by the glass elec- trode; pH meter calibration for gastric analysis. Gastroen- terology 54: 501-507...
Evaluate the effect of fines, salinity, and pH on polymer detection. If results are promising, it would be possible to design a system that can identify the optimum polymer dose in real-time and adjust the polymer dose accordingly using an in-line UV–vis spectrophotometer. 2. Materials and...
The pH of the BRB solutions was measured using a Hanna Instruments model HI-221 pH meter. Electrochemical procedures The electrochemical behavior of 27.5 µmol L−1 FHX was investigated by recording cyclic voltammograms (CVs) using a potential window ranging from − 300 to + 1000 ...
To shake the samples, a vortex was used, in turn, a thermostat was used to evaporate the organic solvent, and the pH of the solutions was adjusted using a pH-meter from Mettler Toledo (Switzerland). The deionized water used for all experiments was purified using a Millipore Milli‐Q‐RG ...
pH selective electrode connected to a decimilivoltimeter; Cl − SE: Chlo- ride selective electrode connected to a decimilivoltimeter; Ref.: reference AgCl/Ag electrode; W: waste. internal diameter was used for connections. The holding coil ...
www.nature.com/scientificreports OPEN Colorimetric determination of trace orthophosphate in water by using C18‑functionalized silica coated magnetite Vanpaseuth Phouthavong1,2, Supone Manakasettharn3, Duangkamon Viboonratanasri3, Siriwit Buajarern1, Panida Prompinit3* & ...
pH measurements were carried out with a Jenway pH-meter model 3505. 2.4. Electrode Preparation Carbon paste electrode was prepared by hand mixing accurately weight (500 mg) of highly pure graphite powder and plasticizer (0.2 mL of DOP, TCP, DBP, DOS, or o-NPOE) using an agate ...
Thus, the equivalence point can be determined either potentiometrically (using a pH meter) or simply with an acid-base indicator. Three nontoxic mediators (phosphate, EDTA, and sulfite) were tested, and optimal conditions for the sharpest pH changes were sought. A combination of phosphate (a ...
Inter and intraday precision were less than %12.2 in terms of RSD. Phosphates and pH were determined simultaneously in different eye drops and the results were validated using reference method such as potentiometry (pHmeter) and ion chromatography....
The pH was determined using a portable pHmeter (ORION RESEARCH, INC., Orion 230 A, Beverly, MA, USA) equipped with a 9107 BN Orion glass electrode. For sorption of the analyte, a minicolumn (85 mm length × 3.0 mm inner diameter) was prepared Result and discussion In order to optimize...