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Forensic labs are often called in to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances: Presumptive tests (such as color tests) give only an indication of which type of substance is present -- but they can't specifically identify the substance. Confirmatory tests (such as gas chromatography/mass spectrometry) are more specific and can determine the precise identity of the substance.
What else can I help you with?
what is forensic drug testing?
Forensic drug testing is to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances. They are Presumptive tests and Confirmatory tests.
How do forensic scientists use titration?
Forensic scientists may use titration to analyze chemical compounds found at crime scenes, such as drugs or poisons. By titrating a known substance with an unknown substance, they can determine the concentration or identity of the unknown substance. This information can then be used as evidence in criminal investigations.
What tools does a forensic scientist use?
Forensic scientists use a lot of computer technology, microscopes, and they draw what they see a lot. They also use kits for discovering finger prints, ultra violet lights or blacklights to see unknown substances on a scene (semen, saliva, blood)
In this experiment you compare several unknown powders to known powders. What is the name given to all of the known materials used for comparison in this experiment?
The known materials used for comparison in this experiment are typically referred to as reference standards or control samples. These known materials help in identifying and characterizing the properties of the unknown powders by comparing them to the known standards.
What experiments do scientists use density for?
Scientists use density measurements to determine the composition of a substance, identify unknown substances, study the buoyancy of objects in fluids, and analyze the purity of a material. Density can also be used to investigate phase changes and conduct experiments in geology, chemistry, and physics.
Pokemon SoulSilver how to get to the unknown scientists?
go to the ruins of alph and solve one of the puzzles an in one of them will have the scientists in them when you go in the basement of the ruins the scientist will give you the UNKNOWN REPORT.
What properties do scientists look for to identify an unknown substance?
Scientists look for properties such as density, boiling point, melting point, solubility, conductivity, and reactivity to help identify an unknown substance. By comparing these properties to known data in a database, scientists can often determine the identity of the unknown substance.
How do forensic scientists use bones to identify unknown individuals?
The structure and sizes of bones can be used by forensic scientists to identify unknown individuals. Different ethnic groups have different bone structures and there is stark contrast between the bones of males and females. Forensic scientists can use a single bone - if that is all they are provided with - to calculate the height, gender, and ethnicity. I do not know how they can tell, since I have not studied in that area, but they can usually tell with first glance what gender it should be. Also, different people have had unique medical records. Records of fractures, or breaks, or simply bone stress can help if forensic scientists see a certain feature (i.e, a fracture line). The skull is probably the most important out of all the bones for identification. The skull can clearly show scientists what gender, age, ethnicity the person was. Even an untrained person can tell if they know what to look for. For example, males have a sharper brow and squarer jaw, while females have more rounded skulls. Teeth can help - especially if the scientist has access to dental records. The number and type of teeth in someone's mouth can tell you their approximate age and daily diet. There was probably a lot of peripheral information in here, but I hope this helped!
Analyze the Interactions Between the Major Systems that make up the Earth?
unknown losers
What is a spectrometer and how is it used in scientific research?
A spectrometer is a scientific instrument used to measure the properties of light. It separates light into its different wavelengths or colors, allowing scientists to analyze the composition of materials based on how they interact with light. Spectrometers are used in scientific research to study the chemical composition of substances, identify unknown materials, and analyze the behavior of atoms and molecules.
An unknown murder victim was finally identified that led to the arrest of a suspect?
forensic anthropology is the type of science used
What are two Unknown animals to US scientists in 1803?
lion and tiger
