Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.

Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

XRF sample preparation is a precise method of preparing analytes for elemental analysis. For example, organic samples being analyzed by XRF must be uniformly homogenized through the use of hydraulic ...

Single-cell proteomics provides information about a cell at its protein level, which can prove useful for anticancer drug resistance and cell differentiation research. However, current proteomics ...

Heat treatment originated in the Bronze Age and was developed further for processing iron (blacksmithing) around 800 BC, reaching a first peak with the production of Damascus steel at the start of the ...

Precise protein quantification is a crucial step in workflows involving protein extraction, isolation, and analysis. Accurate knowledge of the concentration of your protein sample is essential for ...

I sent my forage sample to two different laboratories and received different results. How can I know which one is right?” ...

This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...