| Title | Application of MicroResp™ for soil ecotoxicology |
| Publication Type | Journal Article |
| Year of Publication | 2013 |
| Authors | Wakelin S, Lombi E, Donner E, MacDonald L, Black A, O'Callaghan M |
| Journal | Environmental Pollution |
| Volume | 179 |
| Pagination | 177-184 |
| Date Published | 2013/08/01/ |
| ISBN Number | 0269-7491 |
| Keywords | Dose-response, Ecotoxicology, MicroResp, Soil respiration |
| Abstract | MicroResp™ is a miniaturised method for measuring substrate induced respiration (SIR) in soil. We modified the MicroResp™ method to develop a rapid tool for quantifying the ecotoxicological impact of contaminants. The method is based on reduction in SIR across a gradient of contaminant, allowing for determination of dose–response curves EC-values. Contaminants are mixed into soil samples at a range of concentrations; each sample is then dispensed into a column of eight wells in 96 well format (deep) plates. Moisture and glucose are added to the samples at levels to provide maximum response. Released CO2 from the soils is then measured using colorimetric gel-traps, following the standard MicroResp™ methodology. Examination revealed that this method works over a range of soil types and is insensitive to minor variations in assay length (2–7 h), alteration of moisture content (±20 μL from optimum), and soil storage conditions (4 °C versus fresh). |
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Application of MicroResp™ for soil ecotoxicology
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