The efficiency of different oxidation methods in total organic carbon analysis

被引：0

作者：

Raczyk-Stanislawiak, U ^{[1
]}

Swietlik, J ^{[1
]}

Kasprzyk, B ^{[1
]}

Nawrocki, J ^{[1
]}

机构：

[1] Adam Mickiewicz Univ Poznan, Fac Chem, PL-60613 Poznan, Poland

来源：

CHEMIA ANALITYCZNA | 2003年 / 48卷 / 02期

关键词：

total organic carbon; TOC; TOC apparatus;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

TOC analysis is required for the quality of drinking water and sewage assessment. The analysis is thought to be questionable, since there are many commercially available TOC analysers, employing different oxidation methodologies. The authors have made an attempt to compare the efficiency of three TOC analysers: TOC 10 10, LABTOC, and GO-TOC 100 utilising different oxidation methods, such as: persulfate/100degreesC, persulfate/UV and high-temperature oxidation, respectively. Humic acid, polyacryloamide flocculants and perfluorooctanoic acid were used as model compounds. None of the examined apparatus led to their complete oxidation. The influence of pre-oxidation with ozone and chlorine dioxide on the efficiency of the subsequent TOC analysis was investigated and was found to cause better combustion of the organic carbon. The storage time of the samples treated with phosphoric acid did not influence the efficiency of TOC analysis.

引用

页码：243 / 254

页数：12

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