Related Experiment Video

Updated: Jan 20, 2026

Development of Analytical Methods
01:21

Development of Analytical Methods

1.7K

137Cs contamination in the Adamello glacier: Improving the analytical method

Elena Di Stefano1, Massimiliano Clemenza2, Giovanni Baccolo3

  • 1Physics Department, University Milano-Bicocca, 20126, Milano, Italy; Milano-Bicocca Section, Istituto Nazionale di Fisica Nucleare, 20126, Milano, Italy; Department of Physical, Earth and Environmental Sciences, University of Siena, 53100, Siena, Italy.

Related Concept Videos

Development of Analytical Methods01:21

Development of Analytical Methods

An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...
1.7K
Fabricating Cotton Analytical Devices05:40

Fabricating Cotton Analytical Devices

To investigate simple fabrication approaches for multiple assay needs, we created a fluid-absorbing channel system made of cotton material. This device was used to establish a multiple detection platform, and solve contamination issues that commonly affect lateral flow-based biomedical devices, for clinical urinalysis of nitrite, total protein, and...
7.1K
Sample Preparation for Analytical Characterization09:51

Sample Preparation for Analytical Characterization

Source: Laboratory of Dr. B. Jill Venton - University of Virginia
Sample preparation is the way in which a sample is treated to prepare for analysis. Careful sample preparation is critical in analytical chemistry to accurately generate either a standard or unknown sample for a chemical measurement. Errors in analytical chemistry methods are categorized as random or systematic. Random errors are errors due to change and are often due to noise in instrument. Systematic errors are due to...
88.2K
Contaminants and Errors01:16

Contaminants and Errors

Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
Another key consideration is determining the appropriate number of samples required to...
350
Modified Methods for Loading of High-Throughput DNA Extraction Plates Reduce Potential for Contamination06:18

Modified Methods for Loading of High-Throughput DNA Extraction Plates Reduce Potential for Contamination

Current methods for loading 96-well plates for DNA extractions can be prone to contamination. We detail a new method for loading 96-well plates that reduces risk of cross-contamination among wells. Our method will help other researchers capitalize on the efficiency of high-throughput DNA extraction techniques and minimize risk of...
5.5K
Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites09:39

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Biochar is a carbon-rich material used as a soil amendment with the ability to sustainably sequester carbon, improve substrate quality and sorb contaminants. This protocol describes the 17 analytical methods used for the characterization of biochar, which is required prior to large scale implementation of these amendments in the...
35.7K