Sentence examples for blank filter from inspiring English sources

In Eq. (1), m1 is the dry weight of the blank filter membrane; m2 is the dry weight of loaded filter membrane, V is the volume of sample.

In cases in which the concentration is below the method detection limit (MLD), or not detectable above the average variability of the blank filter, a concentration value equal to the maximum between the MDL and σb has been assumed.

The elements that were not quantified (under MDL or comparable with signal of blank filter) in more than 20% of the samples have been excluded from the analysis similarly to the selection reported in literature [32].

Table 3 Inhibitory in vitro effects of the commercial Artemisia essential oils on Candida albicans (ATCC 10231) Essential oil Inhibition zone diameter (mm ± SD) A. dracunculus 15.5 ± 2.1 A. abrotanum 20.0 ± 1.4 A. absinthium 17.0 ± 1.4 A. vulgaris 12.5 ± 0.7 Nystatin (positive control) 15.0 ± 0 Blank filter paper (negative control) 6.0 ± 0.

The blank filter contribution is of only minor concern in our higher-quality spectra.

Blank filters and the potential Ag+ retention by the membranes were both quantified to ensure the amount of Ag+ from the blank filter or that intercepted by the membrane is negligible.

For all exposure experiments, blank, clean filters were also placed in the Teflon chamber to test for background contamination in the chemistry analyses and mutagenicity assays.

A prior report demonstrated an unacceptably low level of accuracy in silica analytical testing, with a general negative bias (i.e., underreporting) although other inaccuracies included false-positive results when analyzing blank filters.

For data not quantified values equal to the maximum between the detection limit and the standard deviation of blank filters have been used in the analysis [4].

Four blank filters in TE buffer or RNAlater were extracted (two for DNA and two for RNA) exactly as described above as negative controls to ensure that amplifiable nucleic acids were not derived from the filters or the extraction reagents.

On each trial, a blank (filtered, deionized water) and a cup containing a taste stimulus were presented, with subjects being required to identify the cup which they believed to contain the stimulus.