A few years ago one of the analytical lab's, website, who provided detection services to the Victorian racing industry had quite a bit of info on alkalising, buffering, agents and how they masked. How a number of drugs and/or their metabolites were affected by alkaline or acidic environments.
With this knowledge available to the racing industry, along with Noel's HRA papers, you can't help but wonder why TCO2 violations weren't/aren't considered more sinister.
I realise you can't suspect every TCO2 violation is a result of someone trying to mask but isn't there still sufficient proof to indicate milk-shaking can give big advantages similar to some of the illicit drugs that attract higher penalties?
Sodi bic, one of the easiest substances to procure, would be fairly cheap at Aldi, and so easy to manipulate form. To shake or not to shake.