Question

what is seiving????​

Answer 1

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• Sieving is a process by which fine particles are separated from bigger particles by using a sieve.

• It is used in flour mill or at construction sites

• In flour mill, impurities like husks and stones are removed from wheat.

• Pebbles and stones are removed from sand by sieving.

Answer 2

Answer:

Explanation:Sieving electrophoresis (SE) involves the addition of a sieving medium to the background electrolyte. The separation is based on differences in size and shape of the charged analytes and is particularly useful for the separation of large biological molecules such as proteins and DNA. Most commonly used today are solutions of water-  soluble polymers (such as linear polyacrylamide and LPA) that form an entangled network through which the analytes migrate. These have a low viscosity and can be replaced between each separation thus providing improved repeatability and performance

                                   IN CHINESE

：筛分电泳（SE）涉及在背景电解质中添加筛分介质。分离基于带电分析物的大小和形状的差异，对于分离大型生物分子（如蛋白质和DNA）特别有用。当今最常用的是水溶性聚合物（例如线性聚丙烯酰胺和LPA）的溶液，这些溶液形成缠结的网络，分析物可以通过该网络迁移。它们的粘度低，可以在每次分离之间进行更换，从而提高了重复性和性能

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