Document Detail


Simultaneous analysis of small organic acids and humic acids using high performance size exclusion chromatography.
MedLine Citation:
PMID:  23125059     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
An accurate and fast method for simultaneous determination of small organic acids and much larger humic acids was developed using high performance size exclusion chromatography. Two small organic acids, i.e. salicylic acid and 2,3-dihydroxybenzoic acid, and one purified humic acid material were used in this study. Under the experimental conditions, the UV peaks of salicylic acid and 2,3-dihydroxybenzoic acid were well separated from the peaks of humic acid in the chromatogram. Concentrations of the two small organic acids could be accurately determined from their peak areas. The concentration of humic acid in the mixture could then be derived from mass balance calculations. The measured results agreed well with the nominal concentrations. The detection limits are 0.05 mg/L and 0.01 mg/L for salicylic acid and 2,3-dihydroxybenzoic acid, respectively. Applicability of the method to natural samples was tested using groundwater, glacier, and river water samples (both original and spiked with salicylic acid and 2,3-dihydroxybenzoic acid) with a total organic carbon concentration ranging from 2.1 to 179.5 mg C/L. The results obtained are promising, especially for groundwater samples and river water samples with a total organic carbon concentration below 9 mg C/L.
Authors:
Xiaopeng Qin; Fei Liu; Guangcai Wang; Liping Weng
Related Documents :
24108359 - Stereoselective preparation of lipidated carboxymethyl-proline/pipecolic acid derivativ...
11688689 - Enhanced phosphorus removal by glucose fed sequencing batch reactor.
18620969 - Rational selection of non-saccharomyces wine yeasts for mixed starters based on ester f...
18334289 - Effect of clay pretreatment on photofermentative hydrogen production from olive mill wa...
24112119 - Amoeba host-legionella synchronization of amino acid auxotrophy and its role in bacteri...
22726929 - Novel 2-(2-(benzylthio)-1h-benzo[d]imidazol-1-yl)acetic acids: discovery and hit-to-lea...
361509 - Comparison of intraduodenal and intravenous administration of amino acids on gastric se...
11766909 - Retinoic acid homeostasis: retinoic acid regulates liver retinol esterification as well...
16133339 - Impact of membrane fatty acid composition on the uncoupling sensitivity of the energy c...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-5
Journal Detail:
Title:  Journal of separation science     Volume:  -     ISSN:  1615-9314     ISO Abbreviation:  J Sep Sci     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088554     Medline TA:  J Sep Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences (Beijing), Beijing, P. R. China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, P. R. China.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Solution-Processed Fullerene-Based Organic Schottky Junction Devices for Large-Open-Circuit-Voltage ...
Next Document:  Osteogenic differentiation and osteochondral tissue engineering using human adipose-derived stem cel...