Among them is one or more of the following:- i Instrumental design ii Sampling techniques iii Development and evaluation of new procedures iv Laboratory management v Classical analysis vi Statistical analysis vii Optical systems development viii Computer programming and electronics.
Here the methods are either macro or micro analysis. By comparing the analysis of the sample and the blank one is able to obtain the correct concentration in the sample. Some of these include speed the time required to carry out the analysisfor example if one has to analyze many samples for a short time, one would choose a method that is fast, availability of equipment in the field or laboratory, sample size available, concentration of material being analyzed, nature of sample its solubility, toxicity, radioacitivity, valueaccuracy and precision of data required, cost of analysis and identity of sample whether to use destructive or non- destructive method.
The methods usually require samples with high concentrations. Figure 1: The various areas where an analytical chemistry serves 1. Identification deals with the qualitative measurement while determination deals with the quantitative measurement of one or more components in a mixture.
Such analysis faces many problems some of these being: i The interferences.
This includes obtaining a representative sample, sample preparation, measurement and lastly calculating and interpreting data. Gustav Kirchhoff left and Robert Bunsen right Analytical chemistry has been important since the early days of chemistry, providing methods for determining which elements and chemicals are present in the object in question.
In classical methods, no mechanical or electrical instruments are used except simple apparatus.