Sentences with phrase «laboratory contamination from»

The problem with trace analysis, Sargent adds, is that laboratory contamination from hair, sweat, fingers or dust can easily skew results.

Not exact matches

In response to Stone's concerns about water contamination, a Naperville laboratory studied a sample from the well at the gun club in March.

Yet critics said the extraordinary claim required extraordinary evidence, and asked for protein sequences, better handling of samples to prevent contamination, and confirmation analyses from other laboratories.

Now scientists from Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a highly accurate, DNA - based method to detect and distinguish sources of microbial contamination in water.

Professor Pallen explained the importance of the breakthrough, «Most other attempts to recover DNA sequences from historical or ancient samples have suffered from the risk of contamination, because they rely on amplification of DNA in the laboratory, plus they have required onerous optimisation of target - specific assays.

Mercury contamination in the Antarctic and Subantarctic affects bird populations, reveal researchers from the Centre d'Etudes Biologiques de Chizé and from the «Littoral, Environnement et Sociétés» Laboratory (CNRS / Université de La Rochelle).

Much of our knowledge about the direct sublethal and lethal effects of chloride contamination comes from single - species toxicity tests conducted under laboratory conditions.

We reasoned that contamination from XMRV - infected LNCaP cells was more likely given that the laboratory at the Cleveland Clinic performing the nucleic acid extractions in 2004 was simultaneously working with LNCaP and had only worked with 22Rv1 more than 2 years prior.

To investigate whether the discovery of XMRV may have resulted from inadvertent laboratory contamination, we re-analyzed available archival RNA extracts from prostate cancer samples taken from the original 2006 study by Urisman, et al [1].

A 2003 report from the World Health Organization on the chemical stressed that these studies may not prove conclusive because DEP is present in the majority of laboratory equipment, therefore it is difficult to prevent contamination in control groups.

Protective outerwear such as laboratory coats and coveralls are designed to protect street clothes or scrubs from contamination.