Method and apparatus for detecting undesired measurement...

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G01N 21/15 (2006.01) B01L 3/00 (2006.01) C12Q 1/48 (2006.01) G01N 1/28 (2006.01) G01N 21/64 (2006.01) G01N 21/90 (2006.01) G01N 33/487 (2006.01)

Patent

CA 2719129

The invention relates to a method and apparatus for detecting undesired measurement conditions in a sample con-tainer. The method comprises measuring a fluorescent property of the sample container comprising a sample substrate with im-pregnated blood sample and incubation buffer to which the blood sample is to be eluted, and determining, based on temporal and/ or spectral characteristics of the fluorescent property, whether the fluorescent property is characteristic to a sample container com-prising a sample substrate and incubation buffer under said undesired measurement conditions or to a sample container suitable for optical measurement of analyte contained in the sample. Thus undesired measurement condition can be a floating sample sub-strate or a foreign body in the sample container. By means of the invention, reliability of neonatal screening, for example, can be increased.

L'invention concerne un procédé et un appareil pour détecter des conditions de mesure non souhaitées dans un contenant d'échantillon. Le procédé consiste à mesurer une propriété de fluorescence du contenant d'échantillon comprenant un substrat d'échantillon avec un échantillon sanguin imprégné et un tampon d'incubation vers lequel l'échantillon sanguin doit être élué, et déterminer, sur la base de caractéristiques temporelles et/ou spectrales de la propriété de fluorescence, si la propriété de fluorescence est caractéristique d'un contenant d'échantillon comprenant un substrat d'échantillon et un tampon d'incubation se trouvant dans lesdites conditions de mesure non souhaitées ou d'un contenant d'échantillon convenant pour une mesure optique de l'analyte contenu dans l'échantillon. La condition de mesure non souhaitée peut être un substrat d'échantillon flottant ou un corps étranger présent dans le contenant d'échantillon. La présente invention permet par exemple d'augmenter la fiabilité du dépistage néonatal.

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