Extracts were buffered with anhydrous sodium sulfate, reduced to ∼ 200 µL under a gentle stream of nitrogen, spiked with 20 µL of 13C6-chrysene at 1 ng µL−1 as a recovery standard, and analyzed by gas chromatography-mass spectrometry (GC–MS). Following the same procedure, ...
RRS is used to produce standard ocean colour products such as chlorophyll concentration Authentication note: Requires Earthdata login, see https://urs.earthdata.nasa.gov/. Note that you will also need to authorize the application ‘OB.DAAC Data Access’ (see ‘My Applications’ at https://urs...
A natural standard (ILC-G31) is analysed daily to monitor instrumental precision. Optically stimulated luminescence. The dated sites are well bleached, finely stratified aeolian deposits lacking any visible evidence of post-depositional bioturbation or other mixing. Sediment samples for OSL dating were ...
Accuracy was monitored with the 44069 monazite standard (TIMS normalisation data: 207Pb/206Pb ¼ 425.3 Æ 1.1 Ma, 206Pb/238U ¼ 424.86 Æ 0.36 Ma and 207Pb/235U ¼ 424.89 Æ 0.35 Ma; Aleinikoff et al., 2006) and an in- house monazite standard 94-222/Bruna-NW (ca. 450 ...
Standard therapy for drug- sensitive TB involves prolonged treatment (46 months) with combinations of these vintage antibiotics, most of which exhibit toxic side effects and are compromised in the face of multidrug-resistant TB. With an estimated half a million new cases of multidrug-resistant TB ...
To compensate for varying mud content, Al has been used as a normalising factor for the majority of the elements. 3.4.5. Iron diagenesis Fig. 10 also shows the behaviour of %TOC, %S, %Fe and the ratios of Mn:Fe and Feav:S; the Mn:Fe plot also shows the relevant geostandard ...
Daily remote-sensing reflectance from SeaWiFS. RRS is used to produce standard ocean colour products such as chlorophyll concentrationAuthentication note: Requires Earthdata login, see https://urs.earthdata.nasa.gov/. Note that you will also need to authorize the application ‘OB.DAAC Data Access’...
standard formulae found in Magurran (1988). We cal- culated basal areas, family importance values (FIV) and an individual value index (IVI) for each species. We calculated the FIV’s using the formula of Mori et al. (1983), namely ...
Perhaps of most significance is the fact that the mean concentration of Pb in dust (299 mg/kg) is equivalent to the Australian guideline level of 300 mg/kg for standard residential soils (Australia NEPC, 2013). Of the 224 residences samples, 51 (22.8%) contained dust Pb concentrations...
Conversely, when the grid frequency is below the regional standard, the re-electrification peaking system’s fast ramp rate can distribute electricity back into the grid, bolstering the supply’s overall stability. Statistical supply and demand modelling was used to predict the state’s energy ...