Document Detail

Determination of chloride in admixtures and aggregates for cement by a simple flow injection potentiometric system.
MedLine Citation:
PMID:  18585291     Owner:  NLM     Status:  MEDLINE    
A simple flow injection system using three 3-way solenoid valves as an electric control injection valve and with a simple home-made chloride ion selective electrode based on Ag/AgCl wire as a sensor for determination of water soluble chloride in admixtures and aggregates for cement has been developed. A liquid sample or an extract was injected into a water carrier stream which was then merged with 0.1M KNO(3) stream and flowed through a flow cell where the solution will be in contact with the sensor, producing a potential change recorded as a peak. A calibration graph in range of 10-100 mg L(-1) was obtained with a detection limit of 2 mg L(-1). Relative standard deviations for 7 replicates injecting of 20, 60 and 90 mg L(-1) chloride solutions were 1.0, 1.2 and 0.6%, respectively. Sample throughput of 60 h(-1) was achieved with the consumption of 1 mL each of electrolyte solution and water carrier. The developed method was validated by the British Standard methods.
Jaroon Junsomboon; Jaroon Jakmunee
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2008-03-16
Journal Detail:
Title:  Talanta     Volume:  76     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-06-30     Completed Date:  2008-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  365-8     Citation Subset:  IM    
Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
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MeSH Terms
Chlorides / analysis*
Dental Cements
Flow Injection Analysis
Ion-Selective Electrodes
Potentiometry / methods*,  standards
Reproducibility of Results
Reg. No./Substance:
0/Chlorides; 0/Dental Cements

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