Can the Xenosep system be used with benzene instead of hexane?

Document ID

Document ID TE1770

Version

Version 3.0

Status

Status Published

Published Date

Published Date 11/27/2018
Question
Can the Xenosep system be used with benzene instead of hexane?
Summary
Hexane and benzene in Xenosep
Answer
There should be no issue using benzene. Here is a suggestion for preparing the sample:

1. In a 1L bottle, collect approximately 200-250mL of the original sample. Either weigh the sample or mark the original volume. Then dilute the sample to 1L with DI water and filter it through the Xenosep System. This will achieve two things:
          a. It will move the expected O&G value to 12-75mg which is ideal range for the Xenosep SPE filter
          b. It will dilute the max 40% urea concentration to 10% which will make the sample easier to filter
2. The Xenosep SPE filter for Oil and Grease will retain the 12-75mg of neem oil regardless of the amount of sample volume filtered. If the original sample volume put into the 1L bottle was 200mL, the actual results using this modification would be multiplied by 5 (the dilution factor) to be expressed as mg/L. If the actual volume of sample put into the 1L bottle was 250mL, the actual results using this modification would be multiplied by 4 (the dilution factor) to be expressed as mg/L. The same logic for the dilution factor would apply to any volume sample in between.

 

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