Chemical anaylsis of contaminants Flashcards
What does the European Commission’s 2016/17 report address?
public perception regarding chemical contaminants
What type of compounds does the EU List of priority substances in the field of water policy include?
Cadmium and its compounds
Mercury and its compounds
Nickel and its compounds
What does REACH stand for?
Registration
Evaluation
Authorisation
Restriction of Chemicals.
Define ‘photodegradation’
The decomposition of chemical compounds through sunlight exposure
what is bioaccumulation?
The accumulation of substances, such as pesticides or other chemicals, in an organism.
What is Triclosan?
An anti-microbial additive tat can photo-chemically convert to harmful substances
What are common techniques used for traditional chemical analyses?
Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
GC-Mass Spectrometry (GC-MS)
HPLC-Mass Spectrometry (HPLC-MS).
What type of issues can biomarkers indicate?
Biomarkers can indicate pollution markers such as sewage, nutrients, and others.
What is the significance of ‘sedimentation’?
process through which particles settle out of fluid
What does ‘hydrolysis’ refer to in environmental chemistry?
the chemical breakdown of a compound due to reaction with water
Define ‘dissociation’ in the context of chemical substances.
Dissociation is the process by which a compound breaks down into its individual components.
What is the purpose of using high-performance liquid chromatography (HPLC)?
to analyze compounds in a solution using various modes of detection like UV or fluorescence
