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Cloud point extraction of Δ9-tetrahydrocannabinol from cannabis resin

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Academic year: 2021

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Fig. 1 HPLC chromatogram of (a) Dowfax 20B102, (b) THC (standard solution), and (c) solution containing THC and Dowfax 20B102; direct injection of micellar phase into CH 3 CN:H 2 O (83:17) mobile phase, acidified to pH 1.8 with 0.5 mL H 2 SO 4 (2.5 M)
Figure 2 shows the cloud point curve of pure Dowfax 20B102 in water (±0.5 °C). Below the curve, there exists only one liquid phase, i.e., a micellar phase commonly denoted as L 1 , whereas two coexisting liquid phases are found in the region above the curv
Fig. 7 Effect of salt (Na 2 SO 4 ) on the volume fraction of coacervate, ϕ c

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