- Created by: Billy
- Created on: 28-04-08 10:33
Stains: A coloured substances used to reveal certain features.
Micrograph: A microscope image recorded as a photograph.
Atom: The smallest part of an element that can be identified as that element.
Nucleus: The positively charged central core of an atom.
Electrons: Negatively charged particles that from the outer shells of atoms.
Transmission electron microscope (TEM): An electron microscope that passes a beam of electrons through a particle.
Scanning Electron Microscope (SEM): A electron microscope that scans the surface of a sample.
Chromatography: The result of chromatography, showing the positions of separated components.
Accreditation: A system to recognise the standards and reliability of testing laboratories.
Proficiency Test: test to check the accuracy of analytical procedures.
Forensic: Using scientific methods in the investigation of crime.
Colorimeter: An analytical instrument which measures colour intensity.
Electron Microscope: A microscope that uses beams of electrons to create an image.
Sample: A part of something taken for analysis.
Outlier: Measurements that appear inconsistent.
Uncertainty:When your not sure.
Random Errors: An error that has a variable effect on measurements
Systematic Errors: An error that has the same effect on all measurements.
Valid: Suitable for what was being analysed or tested.
Justifiable: Backed by sound, reliable evidence
Objective lens: The main magnifying lens of a microscope, nearest the object being examined.
Eyepiece lens: The microscope lens closest to the eye.
Magnifying Power: The factor by which the size of the image in a microscope is greater that the size of the object.
Representative: Having properties which are the same as the rest of the item or set.
Standard operating procedures: Precise instructions written so that scientists can carry out an analysis or test in the same way every time.
Calibrated: Checked for accuracy with a suitable standard.
Standard Reference Materials: Materials of known composition that scientists use for reference.
Calibration Graphs: Graph drawn from data about known samples that enable unknown samples to be analysed.
Resolving Power: Or resolution, the distance between two points that can stillbe seen and separate under a microscope.
Depth of field: The depth of a microscope image which shows parts of the specimen in clear focus.
Temporary Slides: A sample mounted on a microscope slide for immediate examination in a light microscope