Apparatus and method for preparing a biological sample for analysis

    公开(公告)号:US10099217B2

    公开(公告)日:2018-10-16

    申请号:US15100806

    申请日:2014-12-08

    Abstract: An apparatus for processing a biological sample is provided. The apparatus includes a body having a processing chamber, a first reservoir, a second reservoir, a filter, a first one-way valve, a second one-way valve, a first fluid pathway, and a second fluid pathway. The first fluid pathway and the second fluid pathway pass through the filter. A method of processing a sample using the apparatus is also provided. The method includes placing a sample comprising a liquid into the processing chamber; urging at least a portion of the liquid through the filter; after urging the at least a portion of the liquid through the filter, urging a portion of a back-flush liquid through the filter into the process chamber to form a first processed sample; and analyzing at least a portion of the first processed sample to detect an indication of a microorganism.

    Compositions and Methods of Detecting Analytes

    公开(公告)号:US20240384360A1

    公开(公告)日:2024-11-21

    申请号:US18688702

    申请日:2022-07-01

    Abstract: An aqueous composition, for example a composition for use as a lysis buffer, comprising zirconium oxide particles, a surfactant at a concentration greater than or equal to 0.005% (mass/volume), an organic, iron-chelating reagent having a first affinity constant greater than or equal to 104.2 with respect to ferric iron and a second affinity constant less than 103.8 with respect to magnesium (as determined in 20° C. deionized water at pH 8.45), and a buffer. The aqueous composition has a pH no less than 7.7 and less than 8.45, more particularly 7.8-8.3, in all cases when measured at 20° C. Methods of using the composition and kits comprising components of the aqueous compositions.

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