Is there any possibilities that results from N2 physisorption are different from different machines, assuming degassing process is same? I recent had a sample tested on 2 machines, however difference of two results can be as high as 130 m2 g-1.
Mohamed-Mourad Lafifi
Dear Yujing Liu,
I suggest you to see links i hope that are on subject.
https://www.hyomen.org/en/wp-content/uploads/papers/vol3_no2/sotomayor/sotomayor_40.pdf
https://www.osti.gov/servlets/purl/1460982
https://www.quantachrome.com/pdf_brochures/iQ_07165.pdf
https://www.clays.org/wp-content/uploads/2020/06/CMS-WLS-21_12.pdf
Best regards
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