The normal concentration range fell below the detectability levels of this method.
Several studies have reported that by using an ultra-ultrasensitive HIV RNA PCR assay, low levels of plasma HIV viremia (below the detectability of currently available commercial HIV RNA assays) can be detected in the majority of HIV-infected patients successfully treated with antiretroviral therapy [20] [24].
For our analysis, a detectability level of more than 5 dB corresponding to an SNR of −12 dB has been chosen as a detection criterion to be on the safe side.
In all cases, cyclohexanol and 2-butanone were the only products detected, and carbon balances above 95%% were obtained, suggesting that any potential byproducts produced below the detectability limit of the analytical instrument are present at a relatively negligible level.
However the number distribution of events with energy shows the prevalence of weak flares strong enough to expect that the heating requirements of the quiescent corona could be achieved when extrapolating the distribution below the detectability treshold.
The amount of thiosulfate was much lower in tissues than in plasma, and for some tissues, such as brain, it was below the detectability threshold (Tiranti et al, 2009).
However, this highly sensitive procedure can detect prion concentrations below the level of detectability of bioassays.
"It was below the level of detectability, but there can still be some leukemia cells present".
It was found that the majority of relatively abundant aPtdEtn molecular species present in mouse cerebellar extracts were paired (25 pairs), leading to the prediction that other pairs of aPtdEtn molecular species were also likely present, but below the level of detectability due to their extremely low abundance (Table 2).
Regarding the reviewer's concern about the possible role of ATP-synthesis rate, we point out that the latter process has been proved to be below the level of detectability implying a molecular rate below 10-6 s-1.
