Factors Affecting Acid-Base Stability of the Interface Between Polyaniline Emeraldine Salt and Oxide Covered Metal

2005 ◽  
Vol 8 (9) ◽  
pp. B42 ◽  
Author(s):  
G. Williams ◽  
H. N. McMurray
Keyword(s):  
Emeraldine Salt ◽  
Acid Base ◽  
Factors Affecting ◽  
Base Stability

scholarly journals On the acid–base stability of Keggin Al13 and Al30 polymers in polyaluminum coagulants

2009 ◽  
Vol 44 (12) ◽  
pp. 3098-3111 ◽  
Author(s):  
Zhaoyang Chen ◽  
Zhaokun Luan ◽  
Zhiping Jia ◽  
Xiaosen Li
Keyword(s):  
Acid Base ◽  
Base Stability

A stable blood product for pH-blood-gas quality control.

1978 ◽  
Vol 24 (5) ◽  
pp. 793-795 ◽  
Author(s):  
M C Steiner ◽  
B A Shapiro ◽  
J Kavanaugh ◽  
J R Walton ◽  
W Johnson
Keyword(s):  
Carbon Dioxide ◽  
Quality Control ◽  
Blood Product ◽  
Blood Gas ◽  
Acid Base ◽  
Ph Values ◽  
Carbon Dioxide Concentrations ◽  
Base Stability

Abstract We describe how to prepare, store, and use a hemolyzed blood product for simultaneous pH, pCO2, and pO2 quality control. Tonometry of the blood product with two oxygen and two carbon dioxide concentrations resulted in consistent and reproducible values during 38 weeks. The resulting pH values were consistent and reproducible, demonstrating the metabolic acid-base stability of the blood product. We conclude that the proper preparation, storage, and use of the product results in consistent, reproducible, and economical quality control for pH, pCO2 and pO2 blood measurements.

Self-cleaning, superhydrophobic cotton fabrics with excellent washing durability, solvent resistance and chemical stability prepared from an SU-8 derived surface coating

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61044-61050 ◽  
Author(s):  
Chao Zeng ◽  
Hongxia Wang ◽  
Hua Zhou ◽  
Tong Lin
Keyword(s):  
Chemical Stability ◽  
Surface Coating ◽  
Cotton Fabrics ◽  
Acid Base ◽  
Solvent Resistance ◽  
Washing Durability ◽  
Base Stability ◽  
Self Cleaning

A self-cleaning, superhydrophobic cotton with excellent washing durability, solvent resistance, and acid/base stability has been prepared using a single-pot solution.

EFFECT OF TIME OFF FEED ON BLOOD ACID-BASE HOMEOSTASIS IN PIGS DIFFERING IN THEIR REACTION TO HALOTHANE

1987 ◽  
Vol 67 (2) ◽  
pp. 427-436 ◽  
Author(s):  
A. L. SCHAEFER ◽  
H. DOORNENBAL ◽  
A. K. W. TONG ◽  
A. C. MURRAY ◽  
A. P. SATHER
Keyword(s):  
Base Excess ◽  
Venous Blood ◽  
Muscle Rigidity ◽  
Halothane Anesthesia ◽  
Acid Base ◽  
Physiological Factors ◽  
Blood Ph ◽  
Acid Base Status ◽  
Base Stability ◽  
Breed Crosses

In an effort to elucidate physiological factors involved in the development of pale-soft-exudative pork, blood acid base status was assessed in swine from two genetic lines of pigs and their F1 cross. The lines consisted of: (1) pigs that reacted positively (skeletal muscle rigidity) to the respiratory administration of halothane (halothane positive (H+)) based on Pietrain × Lacombe breed crosses, (2) Purebred Lacombe pigs that did not react positively to halothane anesthesia (Lac) and (3) pigs which were the progeny of crossbreeding (C) between halothane positive and negative animals. In addition, time off feed prior to slaughter (0, 24 or 48 h) was imposed as a stressor in order to test response differences among the three lines. The venous blood PCO2, total CO2, bicarbonate ion levels, standard bicarbonate and base excess levels were found to be higher in the H + pigs compared to either Lac or C pigs. All pig lines displayed higher blood pH, total CO2, bicarbonate ion, standard bicarbonate and base excess yet lower PO2 at 24 h off feed compared to 0 h off feed. These data suggest that H+ pigs have a greater tendency toward hypercapnia and a blood base excess than either Lac or C pigs. In addition, the incidence of hypercapnia and blood base excess for H +, Lac and C pigs was greatest at 24 h off feed. Key words: Acid-base stability, pig genotypes, fasting

Magnesium oxide as a heterogeneous catalyst support

2016 ◽  
Vol 36 (1) ◽  
pp. 1-41 ◽  
Author(s):  
Nurhidayatullaili Muhd Julkapli ◽  
Samira Bagheri
Keyword(s):  
Surface Area ◽  
Heterogeneous Catalyst ◽  
High Surface ◽  
Catalyst Support ◽  
High Surface Area ◽  
Nanocrystalline Structure ◽  
Catalytic Performance ◽  
Acid Base ◽  
Factors Affecting ◽  
Crystal And Electronic Structure

AbstractResearchers normally consider MgO as a promising high-surface-area heterogeneous catalyst support, additive, and promoter for many kinds of chemical reactions due to its certain properties, including stoichiometry and composition, cation valence, redox properties, acid-base character, and crystal and electronic structure. The presence of MgO as a support catalyst also modifies the electronic state of the overall catalytic performance by electron transfer between the native catalyst and MgO as support. The influence is clarified by alteration of acid-base properties of the catalyst-supported MgO. Meanwhile, the method, chemical composition, and condition in the preparation of MgO are the important factors affecting its surface and catalytic properties. Therefore, MgO with a high surface area and nanocrystalline structure has encouraging applications for some reactions, including as dry reforming, dehydrohalogenation, oxidative dehydrogenation of butane, nonoxidative dehydrogenation of ethylbenzene, decomposition of CCl

Effect of bilateral vagotomy on arterial acid-base stability during panting in the pigeon

1986 ◽  
Vol 66 (3) ◽  
pp. 293-302 ◽  
Author(s):  
G.M. Barnas ◽  
M. Gleeson ◽  
W. Rautenberg
Keyword(s):  
Acid Base ◽  
Bilateral Vagotomy ◽  
Base Stability

Factors Affecting Bicarbonate Transfer with Bicarbonate-Containing CAPD Solution

1995 ◽  
Vol 15 (4) ◽  
pp. 336-341 ◽  
Author(s):  
Mariano Feriani ◽  
Jutta Passlick-Deetjen ◽  
Giuseppe La Greca
Keyword(s):  
Dwell Time ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Bicarbonate Concentration ◽  
Acid Base ◽  
Ultrafiltration Rate ◽  
Factors Affecting ◽  
Plasma Bicarbonate ◽  
Dialysis Solution ◽  
Acid Base Status

Objective To evaluate bicarbonate fluxes across the peritoneal membrane and bicarbonate gain in patients treated with continuous ambulatory peritoneal dialysis (CAPD) using dialysis solutions with different bicarbonate concentrations. Patients and Design Ninety-seven exchanges, using different dwell times and glucose and bicarbonate concentrations were performed in 43 stable CAPD patients. Dialysate effluent bicarbonate concentration and volumes were measured at different dwell times. Net dialytic bicarbonate gain was calculated. Patients’ acid-base status was determined at the middle of the dwell. Results In prolonged dwells (6 –12 hours)thedialysate effluent bicarbonate concentration correlated with arterial plasma bicarbonate concentration (F = 129, p < 0.0001), but not with ultrafiltration rate or dialysis solution bicarbonate concentration. In 4-hour dwells, effluent bicarbonate concentration correlated with both plasma bicarbonate concentration and ultrafiltration rate (F = 32.52, p < 0.0001 and F = 4.4, p < 0.05, respectively). The effluent bicarbonate concentration may be predicted from the patient's plasma bicarbonate concentration and net ultrafiltration rate for either a 4-hour or prolonged (6 –12 hours) dwell time. Net bicarbonate gain by the patient correlated with ultrafiltration rate, plasma bicarbonate, and dialysis solution bicarbonate concentration (F = 100.56, p < 0.0001 at 4 hours and F = 108.08, p < 0.0001 at 6 12 hours), with the ultrafiltration rate being the predominant parameter. Conclusions The effluent bicarbonate concentration is related to plasma bicarbonate concentration, with ultrafiltration playing a marginal role only during short dwells. However, the ultrafiltration rate has a profound effect on net patient bicarbonate gain. Multiple linear regression analysis allows the prediction of the effect of acid-base status, ultrafiltration, dwell time, and dialysis solution bicarbonate content on net patient bicarbonate gain. It seems that bicarbonate content in the CAPD dialysis solution should be progressively increased with increasing solution osmolality.

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