The optimized analytical method for HPLC was a multi-step gradient elution using acetonitrile and water.
The detection limits realized by the proposed sensor, under optimized analytical conditions, were found to be as low as 0.62 ng mL−1 for norepinephrine and 0.43 ng mL−1 for uric acid (S/N = 3) in aqueous, biological and pharmaceutical samples.
Under the optimized conditions, the analytical features for PBDEs were estimated.
The flavonoid content of the leaves of three representative cultivars was assessed under the optimized extraction and HPLC analytical conditions, and the seed-producing cultivar 'Baijianlian' had the highest flavonoid content compared with rhizome-producing 'Zhimahuoulian' and wild floral cultivar 'Honglian'.
The contents of nine compounds of different harvest time fruits of A. oxyphylla were assessed under the optimized extraction and UFLC-MS/MS analytical conditions, and the 45-day culture fruit had the highest content levels.
Apparently, state-of-the-art MS-based platforms combined with optimized analytical workflow enable "deep" proteome coverage.
Therefore, the certified values are decided from the analytical results obtained by two or more well-validated and/or optimized analytical methods.
Under the optimized experimental conditions, the proposed paper-based electrochemical immunosensor exhibits excellent analytical performance for enzyme-free detection of carcinoembryonic antigen, ranging from 0.001-50 0.001-50with a low detectionglimL−1of 0.3 pg mL−1.
Under the optimized conditions, the combination of MMF-SPME with high performance liquid chromatography-diode array detection (MMF-SPME-HPLC-DAD) showed expected analytical performance for target analytes.
The glucose biosensor shows good analytical characteristics such as low detection limit (0.01 mM), high sensitivity (approximately 6 μA mM−1 cm−2), wide linear range (0.02 to 6 mM), and good stability under the optimized experimental conditions.
