Objective To investigate the effect of automatic nucleic acid purifiers QIAsymphony SP and QIAcube in the DNA extraction of samples of trace amount or mixed with inhibitors. Methods Different kinds of purification methods using QIAsymphony SP and QIAcube were applied to extract swabs which contained 30. 100. 150 and 300 cells and other samples which contained six types of inhibitors- ... https://jeepworldes.shop/product-category/differential-covers/