This paper focuses on finding criteria to choose the best combination between a pH sensitive material and detection method. Various pH sensitive polymers and measurement methods exist. However, some measurement methods are not sensitive enough to measure pH in the presence of salt and this need to be investigated further. This paper discusses various pH sensitive materials and detection methods...

We aimed to compare the measurements of sheep ruminal pH using a continuous telemetry system or a bench pH meter using sheep with different degrees of ruminal pH. Ruminal lactic acidosis was induced in nine adult crossbred Santa Ines sheep by the administration of 15 g of sucrose per kg/BW. Samples of rumen fluid were collected at the baseline, before the induction of acidosis (T 0) and at six,...

References: A. M. Childs, D. W. Leung and M. A. Nielsen, “Unified deprivations of measurement-based schemes for quantum computation,” Phys. Rev. A 71 (2005) 032318; arXiv:quant-ph/0404132. D. E. Browne and H. J. Briegel, “One-way Quantum Computation,” arXiv:quant-ph/0603226 M. A. Nielsen, “Cluster-state quantum computation,” Reports on Mathematical Physics 57 (2006) 141; arXiv:quant-ph/0504097v...

BACKGROUND Usually, pleural fluid (PF) pH is measured immediately following thoracentesis, and if there is any delay in the measurement, the PF sample is preserved on ice. OBJECTIVE To determine if PF pH changes significantly at room temperature during the first hour following thoracentesis. DESIGN Prospective, self-controlled. SETTING Tertiary care center. PATIENTS All patients undergo...

Evaluation of the radio-transmission pH-measurement system for monitoring the ruminal pH and subacute ruminal acidosis (SARA) in cattle is described. This is done in order to reveal the possible application of this system for detection and pathophysiological research of SARA by continuous ruminal pH measurement. The possibility of using this system for assessment of the ruminal pH in SARA cattl...

Aluminum is acutely toxic, and elevated concentrations of dissolved Al can have detrimental effects on both terrestrial and aquatic ecosystems. Robust analytical methods that can determine environmentally relevant Al fractions accurately and efficiently are required by the environmental monitoring community. A simple, robust passive sampling method, the diffusive gradients in thin films (DGT) t...

A short survey is given of the theoretical background for the simultaneous measurement of intraluminal pressure and pH in the oesophagus and stomach as well as the method used in the paper presented. In 20 of 23 patients with symptoms of regurgitation this was sustained by the pH measurement (87%). In only 20% was incompetence demonstrated radiologically. The pH measurement is of especial value...

We describe a new device with parallel optical measurement of dissolved oxygen (DO) and pH in up to nine shake flasks applicable in any conventional shaking incubator. Measurement ranges are 0-500% of air saturation for oxygen and 5.5-8.5 for pH. It was used to characterize growth profiles of different L-lysine producing strains of Corynebacterium glutamicum, of Saccharomyces cerevisiae and of ...

Introduction Pathological processes are frequently induce variations in tissue pH. Thus, reliable measurement of intra and extracellullar pH (pHi, pHe) should be very useful for the characterization of tissue metabolism. Ideally, the pH measurement method of choice should be able to simultaneously determine pHi and pHe in vivo. P MRS-based methods have been introduced many years ago for pHi (ch...