L1 /
1
CH3041
ON-LINE LECTURE 18
ANALYTICAL PROTOCOL
The same
basic procedure is used for analysis
of all three phases (g, l, s).
1) Extraction (eg. soil extract with
DCM)
- removal of analyte from matrix
- removal of analyte from matrix
2) Separation of compounds
(eg. place DCM on TLC plate and develop)
(eg. place DCM on TLC plate and develop)
3) Concentration of extract
(eg. remove DCM)
4) Analytical Method (eg. Gas
Chromatography)
5) Results - Calculations and Assessment
(eg.
2ppm DDT in soil)
• In some cases where the sample is very
clean and there are no interfering cmpds
it may be possible to make a direct analysis.
clean and there are no interfering cmpds
it may be possible to make a direct analysis.
