Carbon 14 dating of the shroud of turin
"The sample tested was dyed using technology that began to appear in Italy about the time the Crusaders' last bastion fell to the Mameluke Turks in AD 1291," said Mr Rogers."The radiocarbon sample cannot be older than about AD 1290, agreeing with the age determined in 1988.These tests revealed the presence of a chemical called vanillin in the radiocarbon sample and in the Holland cloth, but not the rest of the shroud.Vanillin is produced by the thermal decomposition of lignin, a chemical compound found in plant material such as flax.
In addition to the discovery of dye, microchemical tests - which use tiny quantities of materials - provided a way to date the shroud.
"The radiocarbon sample has completely different chemical properties than the main part of the shroud relic," said Mr Rogers, who is a retired chemist from Los Alamos National Laboratory in New Mexico, US.
Fire damage He says he was originally dubious of untested claims that the 1988 sample was taken from a re-weave.
Unfortunately, some people seem to need or want more. Historically interesting, yes, and relatively unique, but the connection between this cloth and Jesus Christ is stretching the imagination so far as to be ridiculous.
Only the faithful will believe it anyway, and those people who need their faith to be bolstered by something as trivial as this need to question why they believe in the first place.That led to the then Cardinal of Turin, Anastasio Alberto Ballestrero, admitting the garment was a hoax.Michael Minor, vice-president of the American Shroud of Turin Association for Research, commented: "This is the most significant news about the Shroud of Turin since the C-14 dating was announced in 1988. But [the new research] is saying that they dated the rewoven area." But since the announcement of the 1988 results, several attempts have been made to challenge the authenticity of these tests.However, the shroud itself is actually much older." Some now hope the Vatican will give approval for samples of the shroud to be re-tested.