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网页The resulting phenolic content of the extracts obtained by SFE and PLE was 5.37 ± 0.38 and 21.17 ± 0.57 mg GAE/g sample, respectively. The total antioxidant capacity was 3.22 ± 0.47 and 18.05 ± 1.25 mg Trolox/g sample for
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网页2021/12/10 · Firstly, HPLC can be performed at room temperature. In contrast, GC requires a much higher temperature of 150°C to ensure samples are volatile. Because of this volatility, however, GC is much quicker than HPLC. Volatile compounds can move through the system in minutes or even seconds, compared to HPLC runs are generally between 10-60 minutes.
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网页2022/12/21 · HPLC separation was performed on an cyano column (150 × 4.6 mm i.d.; particle size 5 μm) maintained at 30 C. The mobile phase consisting of 4 mM aqueous ammonium acetate pH 4.90, adjusted with glacial acetic acid, and acetonitrile (64:36, v/v) delivered at a flow rate of 1 mL min−1.
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网页2022/02/04 · Certified 40 mL screw top vials with 24 mm cap closures. 0.2 and 2 mL screw top vial-cap kits; includes SureStop vials with AVCS caps. Includes innovative vial-cap technology to ensures proper screw cap seal every time. Highest levels of sample security and integrity. Use with mass spectrometry.
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