Sökning: "PCR inhibition"
Visar resultat 1 - 5 av 90 avhandlingar innehållade orden PCR inhibition.
1. PCR inhibition mechanisms in forensic DNA analysis
Sammanfattning : In forensic DNA analysis, the polymerase chain reaction (PCR) enables DNAanalysis of minute biological crime scene traces. PCR is an enzymatic reaction for amplification of specific DNA fragments involving both biochemical andbiophysical processes. The main analytical challenge is posed by the nature of the samples of interest. LÄS MER
2. PCR-based detection of microorganisms in complex biological samples
Sammanfattning : The detection of microorganisms by PCR can be divided into four steps: (1) sample collection, (2) sample preparation, (3) DNA amplification and (4) detection of PCR products. The major problem in developing PCR-based detection methods is the sample preparation step. LÄS MER
3. DNA Analysis of PCR-Inhibitory Forensic Samples
Sammanfattning : DNA evidence, linking perpetrators to crime scenes, is central to many legal proceedings. However, crime scene samples often contain extraneous substances that may interfere with the PCR-based forensic analysis, resulting in partial or negative DNA profiles. Extensive DNA purification may remove inhibitors, but involves the risk of DNA loss. LÄS MER
4. Detection and Characterisation of Salmonella in Animal Feed Samples by PCR-Based Methods
Sammanfattning : Animal feed is a recognised source of Salmonella enterica for farm livestock and may also indirectly cause infection in people consuming foods of animal origin. It is therefore important to have rapid, reproducible and specific methods for the detection of Salmonella in feed, and for the characterisation of strains for further epidemiological investigations or to trace the source of contamination in a production facility. LÄS MER
5. Kinetics Quality Assessment for real-time PCR
Sammanfattning : For proper DNA quantification by real-time PCR, compared samples should have similar PCR efficiencies. This assumption might not be always correct, as suggested by hundreds of publications dealing with PCR inhibition. LÄS MER