12.07.2015 Views

Influenza V 14-deu - virion\serion

Influenza V 14-deu - virion\serion

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Pos: 39 /Ar bei tsanl eitungen ELISA cl assic/Gültig für all e D okumente/ELISA classic/T estauswertung/Automatische Auswer tung @ 4\mod_1255347464244_18.doc @ 21352 @ 3Method 2:Pos: 38 /Ar bei tsanl eitungen ELISA cl assic/Gültig für all e D okumente/ELISA classic/T estauswertung/Testauswertung: Methode 2 (für alle T ests) @ 4\mod_1255348201981_18.doc @ 2<strong>14</strong>16 @Continuous Determination of Antibody Activities using the Standard CurveSo called interassay variations (day to day deviations and laboratory to laboratorydeviations) are compensated by multiplication of the current measured value obtained witha patient’s sample with the correction factor F. This factor is calculated as follows:F =OD-reference value (of standard serum)OD-current value (of standard serum)ENEL ENThe procedure is necessary to adjust the current test level of the user with the lot-specificstandard curve. First, daily deviations have to be corrected by calculating the correctionfactor F.1. The mean of the two OD-values of the standard serum has to be calculated andchecked that it is within the given validity range.2. Calculation of the factor F: the given reference value is divided by the mean of theextinction of the standard serum:F = reference value extinction STD serum / mean value extinction STD serum.3. All measured values of patient’s samples are multiplied by F.4. Antibody activities in IU/ml or U/ml can be determined from the standard curve withthe corrected values.CS PTenglish 17

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