Sentence examples for samples usually require from inspiring English sources

Prevalent sequencing library preparation protocols for FFPE samples usually require more than 5 ng starting DNA.

In the conventional bacterial culture test, the procedure for isolation and identification of E. tarda from diseased fish samples usually requires 2 to 3 days, including bacterial enrichment, plating onto DHL agars, sequential subculture, and biochemical characteristic test, which is time-consuming and tedious.

The inclusion of a broader sample usually requires additional data to achieve saturation than would be required with a more tightly defined sample [ 37].

On the other hand, this approach is only suitable for relative quantification and each sample usually requires manual work (e.g., for cell detachment, transfer, washing steps) implicating a reduced number of processable samples compared to the microplate format.

It provides a good verification of variability of the mean values within samples; we usually require the mean discrepancy of the ten consecutive samples below 1%.

Sample preparation usually requires solid phase extraction to remove matrix components and enrich the analyte.

Several grams of meteorite sample are usually required for isotopic analyses using GC/C/IRMS.

A second level of sampling is usually required to estimate the section area from each image (e.g., by applying point counting).

The results generally do not have to be bracketed by a confidence interval as no sampling is usually required, though small numbers can result from breaking down the data by area, age groups, socio-economic categories, etc.

The method does not require the onerous sampling schemes usually required for these types of experiments.

However, it is unclear whether specimens obtained from pancreatic lesions by EUS-FNA are adequate for the histologic diagnosis of AIP, because the evaluation of tissue architecture and immunostaining assays usually require larger samples.