INTRODUCTION TO ANALYTICAL CHEMISTRY Flashcards
It is the science of obtaining, processing, and communicating information about the composition and structure of matter.
Analytical Chemistry
contributes in the development of systematic elemental analysis and systematized organic analysis based on the specific reasons of functional group
Just von Leibig
discovered Rubidium and Cesium in 1860
Flame Emission Spectrometry
Robert Bunsen and Gustav Kirchhoff
2 NATURE OF ANALYTICAL CHEMISTRY
Qualitative
Quantitative
reveals the identity of the elements and compounds in a sample
Qualitative
- indicates the amount of each substance in a sample
Quantitative
are the components of a sample that are determined
Analytes
- conforms to the minimum standards set forth by the Reagent Chemical Committee
- it has a maximum limit of impurities ( most high purity)
Reagent Grade
a highly pure and stable chemicals reagent used to prepare standard solutions
Primary - Standard Grade
used for specific applications especially when advanced and hi-tech instruments are involve
Special - Purpose Reagent Chemicals
is frequently difficult to control because of the tendency of some solutions to overheat locally
Evaporation
is the sudden, often violent boiling that tends to separate solutions out of its container
BUMPING
is the oxidation of the organic constituents of a sample with oxidizing reagents such as nitric acid, sulfuric acid, hydrogen peroxide, aqueous bromine or combination of these reagent
WET ASHING-
has a maximum capacity that ranges from 1g to several kilograms and precision at maximum capacity of at least 1 part in 10^5
Analytical Balance
is the most common type of analytical balance and it has a maximum load of 160 to 200g and a precision of 0.1 mg
Macrobalance