Knowles, Timothy - University of Bristol

个人简介

I graduated from the University of Bristol with a BSc (Hons) in Chemistry in 2003

研究领域

Radiocarbon Dating

近期论文

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Charteris, AF, Knowles, TDJ, Michaelides, K & Evershed, RP, 2016, ‘Compound-specific amino acid 15N stable isotope probing of nitrogen assimilation by the soil microbial biomass using gas chromatography/combustion/isotope ratio mass spectrometry’. Rapid Communications in Mass Spectrometry, vol 30., pp. 1846-1856 Bosch, C, Andersson, A, Krus?, M, Bandh, C, Hovorková, I, Klánová, J, Knowles, TDJ, Pancost, RD, Evershed, RP & Gustafsson, &#x, 2;015, ‘Source Apportionment of Polycyclic Aromatic Hydrocarbons in Central European Soils with Compound-Specific Triple Isotopes (δ13C, Δ14C, and δ2H)’. Environmental Science & Technology, vol 49., pp. 7657-7665 Wiegert, C, Mandalakis, M, Knowles, T, Polymenakou, PN, Aeppli, C, Machá?ková, J, Holmstrand, H, Evershed, RP, Pancost, RD & Gustafsson, O, 2013, ‘Carbon and chlorine isotope fractionation during microbial degradation of tetra- and trichloroethene’. Environmental Science & Technology, vol 47., pp. 6449-6456 Wiegert, C, Aeppli, C, Knowles, T, Holmstrand, H, Evershed, R, Pancost, RD, Machackova, J & Gustafsson, O, 2012, ‘Dual Carbon-Chlorine Stable Isotope Investigation of Sources and Fate of Chlorinated Ethenes in Contaminated Groundwater’. Environmental Science & Technology, vol 46., pp. 10918-10925 Styring, AK, Kuhl, A, Knowles, TDJ, Fraser, RA, Bogaard, A & Evershed, RP, 2012, ‘Practical considerations in the determination of compound-specific amino acid delta N-15 values in animal and plant tissues by gas chromatography-combustion-isotope ratio mass spectrometry, following derivatisation to their N-acetylisopropyl esters’. Rapid communications in mass spectrometry, vol 26., pp. 2328-2334 Knowles, TDJ, Chadwick, DR, Bol, R & Evershed, RP, 2010, ‘Tracing the rate and extent of N and C flow from C-13,N-15-glycine and glutamate into individual de novo synthesised soil amino acids’. Organic Geochemistry, vol 41., pp. 1259-1268