ECOSAR	Ecological Structure–Activity Relationships
ILIS	Isotopically Labeled Internal Standards
MDL	Method Detection Limit
ME	Matrix Effect
MQL	Method Quantification Limit
MRM	Multiple Reaction Monitoring
MS/MS	Tandem Mass Spectrometry
n.d.	Not detected
n.e.	Not eliminated
RQ	Risk Quotient
SPE	Solid Phase Extraction
UHPLC	Ultra-High-Performance Liquid Chromatography