Sentence examples for sample must first from inspiring English sources
For this technique to work, bacteria from a patient sample must first be cultured in a lab, which can take two to three days — long enough for a simple bacterial infection like a urinary tract infection to invade the kidneys or the blood.
To obtain a mass spectrum, the sample must first be ionized.
Classical DST for M. tuberculosis on solid media requires 6-8 weeks as the sputum sample must first be cultured and then regrown on drug-containing media.
The cDNA sample must first be cloned into a vector (typically either plasmid- or phage-based) to produce a cDNA library and then individual clones are isolated from the library and sequenced, which results in a few thousand clones being sequenced.
As outlined above, before we examined items for retention, the long-form structure (Hawley et al. 2011) of the previously published and present samples must first be evaluated for strong measurement invariance (i.e., equivalent loadings and intercepts).
If nonconducting samples are to be observed, such as biological specimens with a high water content, the samples must first be fixed with aldehyde, dehydrated with a graded alcohol series, dried, and then coated with a conductive film of a metal such as platinum prior to SEM observation (Figure 1).
To read a soil sample, you must first have it tested.
In order to determine whether there are significant differences in U VI) adsorption properties of sediment samples one must first minimize variability and scatter in measured and model-calculated adsorbed U VI) concentrations owing to aqueous chemical conditions (e.g., Figure 2).
For calculating modulus of elasticity in accordance with ASTM C769 test standard (ASTM International, West Conshohocken, PA, USA), the speed of sound in the sample must be calculated first.
In order to calculate power and plan sample size, one must first estimate the variance.
To be suspended for using a performance-enhancing drug, the positive result for Landis's first sample must be corroborated by testing a second sample.
