Hi Scott
I've crunched the numbers and tried to attach the spreadsheet that I built but I've had to settle for a PDF of it!
3000ppm of ClO₂ is equivalent to 44 477 μmol/l; 4000ppm is 59 303 μmol/l.
To reach the 7,6μmol/l identified in the study, it would depend upon whether this needs to be achieved throughout all of the water in the body (~42 litres in a 70kg adult) or just the blood (~6 litres). If the former, then a total of 22mg of ClO₂ would be required; if the latter, then just 3. This larger amount of ClO₂ is contained in 7ml of classic CDS (at 300ppm) or in 5½ml of CDS4000.
Even if you aim at the 20μmol/l shown to completely inhibit the spike protein from binding to the ACE2 receptor, and even if the ClO₂ dissipates throughout all of the water within the body, only 57mg of ClO₂ is necessary (8mg if just the blood is involved). This amount of ClO₂ is contained in 19ml of CDS3000 or 14ml CDS4000 (or 3ml CDS3000 / 2ml CDS4000 for the blood-only figures).
These amounts are well within the typical therapeutic doses being used and even if much of the ClO₂ is 'lost' along the way as it oxidises other molecules, fails to get into the bloodstream or otherwise does not end up being available for these interactions, there is plenty leeway for good therapeutic activity to be achieved from standard doses of MMS, CDH or CHS.
It's great to have a good experimental quantification of the empirical results that are being seen.