Linked Life Data

17597251

Source:http://linkedlifedata.com/resource/pubmed/id/17597251

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-7-9
pubmed:abstractText
Clinically used infusion solutions are complex aqueous mixtures composed of a variety of different salts, acids, and non-electrolytes, and are characterized by composition, initial pH, and titratable acidity (TA). By rigorous treatment as a multi-composed acid-base system, pH and TA were calculated from proton dissociation equilibria, mass balance equations and electroneutrality condition. Nine were arbitrarily chosen as model solutions in which pH and TA were experimentally determined. From composition, and based on a set of apparent acidity constants (pK values) at 37 degrees C and total ionic strength 0.155 mol/l, pH was calculated by iteration. In the model solutions, measured pH was in the range 5-7, and the difference between calculated and experimental values was+/-0.064. Good agreement was also found between calculated and measured TA: in the range 0-55 mmol/l the mean difference was+/-2.07 mmol/l, if calculated from measured pH, and +/-0.95 mmol/l, if calculated from calculated pH.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0169-2607
pubmed:author
pubmed:issnType
Print
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
160-9
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Calculation of the pH and the titratable acidity in clinically used infusion solutions.
pubmed:affiliation
Institute of Physiology and Pathophysiology, Johannes Gutenberg University Mainz, Saarstrasse 21, D-55099 Mainz, Germany. wlang@uni-mainz.de
pubmed:publicationType
Journal Article