Sentence examples for be present at concentrations from inspiring English sources

Therefore, owing to hormonal changes during the menstrual cycle, antimicrobials and antibodies may not be present at concentrations sufficient to exert anti-HIV effects.

On the other hand, albumin is known to be present at concentrations as high as 35 45 mg/ml in HS [76] and 23 mg/ml in FBS [77], explaining its predominance in the composition of the serum granulations obtained.

Not surprisingly, albumin is one of the major proteins found in both human and bovine serum, where it is known to be present at concentrations as high as 35 45 mg/ml in human serum [52] and 23 mg/ml in FBS [53].

But because nondetected chemicals may be present at concentrations too low to be positively identified by the assay, the authors estimated risks anyway, using a common substitution method employed in risk assessment.

One limitation of ITOCSY evident from the E. coli study is that reliable quantification requires both the labeled and unlabeled molecules to be present at concentrations above the detection limit.

Second, in order to deplete the analyte signal, the competitor must be present at concentrations significantly in excess of the Kd for the interaction between the affinity reagent and the analyte.

Sodium copper chlorophyllin complex is present at concentrations of 250 1,000 µg/mL in Phytochromatic MD™ complex, an enhanced penetrating liposomal concentrate of sodium copper chlorophyllin complex, as utilized in various topical anti-aging treatment products developed by MDRejuvena , Inc

Semiquantitative Western blotting of extracts showed that secretory leukoprotease inhibitor, lysozyme, lactoferrin, and neutrophil defensins were present at concentrations that were sufficient for antimicrobial activity.

These new stabilizers are the most effective when they are present at concentrations higher than 0.1% and at higher concentrations of HALS.

Chlorinated products of TCE reductive dechlorination (cis-dichloroethene (cDCE) and vinyl chloride (VC)) were present at concentrations of 17.5 to 126.4 μmol/L.

Glucose was present at concentrations of around 0.1 mM throughout the reactor.