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No! because the Ninhydrin test is mostly used to detect ammonia or primary secondary amines
Color is the least reliable of a mineral's characteristics used in its identification.
I would think that the only reliable means of determining that motivation would be to ask the author.
Criteria for reliable sources include author expertise, publication reputation, timeliness, objectivity, and supporting evidence. It's important to evaluate where the information is coming from and consider bias, peer review, and relevance to your research topic.
In1915, Leone Lattes, an Italian forensic serologist, developed a (reliable method) for determining the blood group of dried blood samples.
Because scientists want to obtain correct, sure, reliable experimental data.
Paul Crouch Sr has publicly stated he is heterosexual. Furthermore, rumors are not a reliable way of determining sexual orientation.
True (apex)
determining whether a source is reliable and relevant.
The only way to really be sure of a box turtle's age is to be present at the hatching. Determining age by the hexagonal lines on the plates of the shell (scutes) is not reliable.
It depends on the level of the sonogram and its purpose. Looking at veins and things of that nature, they're reliable. When it comes to determining a baby's size - they'll give you a decent range ... but they are not very accurate nor can they be fully reliable.
Micro expressions, specifically the presence of brief facial expressions that can reveal true emotions even when an individual is trying to suppress them, have been found to be a fairly reliable indicator of lying according to the research of Ekman.