I am working with the TOC analyser and I record unusually high amounts of TOC when I measure a sodium thiosulphate solution without any organic material. Ideally the TOC should be 0mg/L since there is no organic material in it but I get a reading of 15mg/L.The plan was to use the sample as a reference before I introduce any organic material to the solution.
Marius Pelmus
Hi Ngoni,
As T. H. Al-Noor put it, you need to account for the dissolved CO2 gas, also for carbonate/bicarbonate salts if you are not using distilated water.
Here are some graphs with the dependence amount of gas dissolved in water vs. temperature:
www.engineeringtoolbox.com/amp/gases-solubility-water-d_1148.html
Regards,
Marius
0 votes
0 thanks
- Badges
- Science topic
- Similar topics
- Chemistry, Organic
- Organic
More Ngoni Mhonde's questions See All
Similar questions and discussions