DCHAS-L Archives, Jan 24 2018 - [DCHAS-L] Chloride interference in COD method

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From: AbdulAziz AlRueshed <abdulaziz208**At_Symbol_Here**HOTMAIL.COM>
Subject: [DCHAS-L] Chloride interference in COD method
Date: Wed, 24 Jan 2018 18:57:17 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: VI1PR0602MB34553F38B1BE0181FA53EB0083E20**At_Symbol_Here**VI1PR0602MB3455.eurprd06.prod.outlook.com
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Demystify:

Dear All,

We are conducting a COD measurement as routine analysis for seawater samples. Currently, we are utilizing chloride elimination kit to minimize this interference. The kit worked efficiently and reduced the chloride concentration in the examples.
The concentration of COD after using the chloride kit around 150ppm. Is this acceptable level for the COD in sea water.
Can anyone give me the range of the COD in seawater or gulf? Especially that the TOC in our samples less than 5 ppm.

Best regards,
AlRueshed

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