PRELIM LEC: Fundamental Concepts in Analytical Procedures (BISHOP)

to perform analytic procedures that yield accurate and precise information, aiding in patient diagnosis and treatment

defines the physical quantity or dimension, such as mass, length, time, or volume.

This system was devised to provide the global scientific community with a uniform method of describing physical quantities

subclassifications OF SI UNITS:

is a derivative or a mathematical function describing one of the basic units

This group develops standards of practice, definitions, and guidelines that can be adopted by everyone in a given field, providing for more uniform terminology and less confusion.

require manufacturers to indicate any physical or biologic health hazards and precautions needed for the safe use, storage, and disposal of any chemical

is required to provide technical data sheets for each chemical manufactured on a document called a Safety Data Sheet (SDS)

certified standard reference materials (SRMs) are used instead of ACS primary standard materials.

established specifications for AR grade chemicals, and chemical manufacturers will either meet or exceed these requirements

has been purified to remove almost all organic materials, using a technique of distillation much like that found in organic chemistry laboratory distillation experiments in which water is boiled and vaporized

are excellent in removing particulate matter, microorganisms, and any pyrogens or endotoxins

is purified from previously treated water, such as prefiltered or distilled water

has some or all ions removed, although organic material may still be present, so it is neither pure nor sterile

is produced using either an anion or a cation exchange resin, followed by replacement of the removed ions with hydroxyl or hydrogen ions

is a process that uses pressure to force water through a semipermeable membrane, producing water that reflects a filtered product of the original water. It does not remove dissolved gases.

uses an anion resin followed by a cation resin. The different resins may be in separate columns or in the same column. This processis excellent in removing dissolved ionized solids and dissolved gases.

may be used for the pretreatment of water

which removes some trace organic material or sterilization processes at specific wavelengths, when used in combination with ozone treatment, can destroy bacteria but may leave behind residual products.

These techniques are often used after other purification processes have been completed.

are those properties related to the number of solute particles per solvent molecules, not on the type of particles present

Colligative Properties

is the pressure exerted by the vapor when the liquid solvent is in equilibrium with the vapor.

is the temperature at which the first crystal (solid) of solvent forms in equilibrium with the solution