Browsing Geology by Author "Gill, Laurence"
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An analysis of the spatio-temporal occurrence of anthelmintic veterinary drug residues in groundwater
Coxon, Catherine; Gill, Laurence (2021)Anthelmintics are antiparasitic drugs used to control helminthic parasites such as nematodes and trematodes in animals, particularly those exposed through pasture-based production systems. Even though anthelmintics have ... -
Development and optimisation of a multi-residue method for the determination of 40 anthelmintic drugs in environmental water samples by solid phase extraction (SPE) with LC-MS/MS detection
Gill, Laurence; Coxon, Catherine (MDPI, 2019-05-22)A comprehensive multiresidue method was developed and validated for the determination of 40 anthelmintic compounds, including 13 transformation products, in surface and groundwater samples at sub nanogram per litre (ng ... -
Flow cytometry and fecal indicator bacteria analyses for fingerprinting microbial pollution in karst aquifer systems
Coxon, Catherine; Gill, Laurence; O'Connell, David (2022)Microbial pollution of aquifers is a persistent water quality problem globally which poses significant risks to public health. Karst aquifer systems are exceptionally vulnerable to pollution from fecal contamination sources ... -
An investigation of anticoccidial veterinary drugs as emerging organic contaminants in groundwater
Coxon, Catherine; Gill, Laurence (Elsevier, 2020)Intensification of the food production system to meet increased global demand for food has led to veterinary pharmaceuticals becoming a critical component in animal husbandry. Anticoccidials are a group of veterinary ... -
Multiple fluorescence approaches to identify rapid changes in microbial indicators at karst springs
O'Connell, David; Coxon, Catherine; Gill, Laurence (2023)Karst springs are globally important for drinking water supply but are often also exceptionally vulnerable to contamination. Such springs usually exhibit strong variation in microbial water quality in sharp response to ... -
A new sensitive method for the simultaneous chromatographic separation and tandem mass spectrometry detection of anticoccidials, including highly polar compounds, in environmental waters
Coxon, Catherine; Gill, Laurence (Elsevier, 2020)A sensitive and selective method was developed and validated for the determination of 26 anticoccidial compounds (six ionophores and twenty chemical coccidiostats) in surface and groundwater samples at parts-per-quadrillion ...