Maura said she ran the piece of metal through the gas chromatography machine which is impossible since it only analyses gases or liquids that can be vaporized into gases, that is why it is called a GAS chromatograph.
One of the tests Maura says she ran on the piece of metal was to soak it in saline solution. Saline solution is salty water which would just make the metal wet and provide no information about its composition. It might sound good but there is no such analytical test for determining composition.
Maura identifies an isotope of iodine as I-29. There are 37 known isotopes of iodine, ranging from I-108 to I-144. An isotope's number is equal to the number of protons in an atom's nucleus plus the number of neutrons in the nucleus. Since iodine has 53 protons in its nucleus, it cannot possibly have an isotope number of 29. What Maura meant to say was I-129.
Maura identifies an isotope of iodine as I-29. There are 37 known isotopes of iodine, ranging from I-108 to I-144. An element's isotope number is equal to the total number of particles (protons and neutrons) in the nucleus. Since iodine has 53 protons in its nucleus, it cannot possibly have an isotope number of 29. What Maura meant to say was I-129.
Maura supposedly finds an oily substance that was transferred from the metal to the sole, but she finds it inside under the sole which means it would have to had migrated through an inch or more of hard rubber which is impossible.