Exact(15)
The collected solution was analysed for U concentration using ICP-MS.
A UV-vis spectrophotometer was used to analyze the absorbance properties of the collected solution.
The modified PSiO2 samples are exposed to a substrate solution of Ampliflu Red in PBS, and the collected solution is spectrophotometrically analyzed.
Leachate was collected 24 h after each simulated rainfall event, and pH, EC, and K were analyzed directly in the collected solution.
In addition, upon exposure to the light of 365 nm wavelength from portable UV lamp, sample 1′ exhibited blue-green fluorescence and the collected solution of samples 4′ 8′ exhibited blue fluorescence (inset in Fig. 8).
Meanwhile, we used quinine sulfate as reference and measured the fluorescence quantum yields of sample 1′ and the collected solution of samples 4′ 8′ to be 6.79 and 17.32%, respectively, based on the reference method.
Similar(45)
The collected solutions (500 mL of total volume) were quickly centrifuged and the supernatants were lyophilized.
The collected solutions were concentrated subsequently at 80 °C or by boiling, which indicates that Anderlini was not actually sure about the effect of hydrothermal degradation, although he was aware that high temperatures might induce some structural changes in sericin.
Figure 8 shows the absorption and fluorescence emission spectra for sample 1′ (Fig. 8a) and the collected solutions of samples 4′ 8′ (Fig. 8b).It can be seen from Fig. 8 that the depolymerized coal samples obtained by mixed acids/ultrasound treatment all exhibited good absorption and emission ability.
The collected solutions were pooled and then kept at 4 °C.
The collected dialysis solution was freeze-dried using a vacuum freeze dryer.
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