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Quality
Control
Field quality control:
It
includes the selection of appropriate sampling equipment
and sample containers, Staff trainning and documentation
of all sampling protocols as standard operating procedures
" SOPs"
Laboratory
quality control:
It
involves the use of documented procedures to be followed
to ensure that all meaurements and data processing activities
that affect the quality of data produced in the laboratory
meet the predetermined data quality objectives.
Quality
Control Procedure :
QC
goes well beyond using standard methods and codes of good
laboartory prackice (GLP) and includes
- Selection
of methodologies
- Methods
validation and determination of detection limits
- Instrument
maintenance logs and performance checks;
- Calibration
checks;
- Preparation
and use of standards;
- Control
charls; Analysis of blank, split, blind and duplicate samples
- Analysis
of surrogates; data validotion; and
AUDTING
- Worksheet
review Oral worksheet review.
- On
site analyst work review.
- Independent
or check sample examination
- Intra
and interlaboratory check sample
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