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Spot analysis, spot test analysis, or spot test is a chemical test, a simple and efficient technique where analytic assays are executed in only one, or a few drops, of a chemical solution, preferably in a great piece of filter paper, without using any sophisticated instrumentation. The development and popularization of the test is credited to ...
Spatial Transcriptomics is the ability to capture the positional context of transcriptional activity within intact tissue, either for regions or single cells. When a tissue cryosection is attached to a spatial transcriptomic slide the barcoded primers bind and capture adjacent mRNAs from the tissue.
Dried blood spot. Dried blood spot testing (DBS) is a form of biosampling where blood samples are blotted and dried on filter paper. The dried samples can easily be shipped to an analytical laboratory and analysed using various methods such as DNA amplification or high-performance liquid chromatography. [citation needed]
Between each sample reading, the mobile phase and filter paper are changed to ensure the best outcomes. The spot capacity (analogous to peak capacity in HPLC) can be increased by developing the plate with two different solvents, using two-dimensional chromatography. [8] The procedure begins with development of a sample loaded plate with first ...
Paper chromatography is one method for testing the purity of compounds and identifying substances. Paper chromatography is a useful technique because it is relatively quick and requires only small quantities of material. Separations in paper chromatography involve the principle of partition. In paper chromatography, substances are distributed ...
The spot resolutions were offered in the United States House of Representatives on 22 December 1847 by future President Abraham Lincoln, then a Whig representative from Illinois. The resolutions requested President James K. Polk to provide Congress with the exact location (the "spot") upon which blood was spilled on American soil, as Polk had ...
Selected area (electron) diffraction (abbreviated as SAD or SAED) is a crystallographic experimental technique typically performed using a transmission electron microscope (TEM). It is a specific case of electron diffraction used primarily in material science and solid state physics as one of the most common experimental techniques.
In geotechnical engineering, a soil test can be used to determine the physical characteristics of a soil, such as its water content, void ratio or bulk density. Soil testing can also provide information related to the shear strength, rate of consolidation and permeability of the soil. The following is a non-exhaustive list of engineering soil ...