Sentence examples for below detection limits of from inspiring English sources

We show that 19th century atmospheric levels, before significant anthropogenic influence, were stable at 34.1 ± 0.3 ppt for CF4 and below detection limits of 0.002 and 0.01 ppt for C2F6 and C3F8, respectively.

The present study shows that: (1) intratracheally instilled colloidal gold nanoparticles are being phagocytized by macrophages of the lungs; (2) translocation of the intratracheally instilled gold nanoparticles to systemic circulation is below detection limits of the used techniques or very low.

Levels of IL-1A, IL-10, and IL-12 were below detection limits of the assay (12.0 pg/ml).

Many urine samples had concentrations below detection limits of some metabolites.

In France, the levels of environmental contamination are generally below detection limits of routine monitoring.

In lung tissue, the levels of both rBDNF-lacZ and mBDNF mRNA were below detection limits of our in situ hybridization analysis (data not shown).

Heat treatment 20 d measurements were below detection limit of the methodology.

Heat treatment 20 d pigment concentrations were below detection limit of the instrument.

The Co content of kamacite is also much lower than the concentrations observed in OCs (below detection limit of 0.18 wt% versus 0.44 37 wt%).

AOH: alternariol; AME: alternariol monomethylether; TA: tenuazonic acid; BDM: biodrymass; ND: below detection limit of < 0.001 mg/L.

To control for contamination with maternal blood only cord serum IgA was determined (below detection limit of 4.2 mg/dl).