Simultaneous Determination of Six Major Active Furocoumarins in Radix Glehniae by HPLC-DAD
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
A rapid, reliable, and sensitive method for the simultaneous determination of 6 furocoumarins (psoralen, xanthotoxin, bergapten, imperatorin, cnidilin, and isoimperatorin) in Radix glehniae was developed using reversed-phase high-performance liquid chromatography (RP-HPLC) coupled with diode array detection. The HPLC assay was performed on an Ultimate C18 column (5 µm, 250 mm × 4 mm) with gradient elution of acetonitrile and water within 20 min. The detection wavelength was set at 310 nm. All compounds showed good linearity (r2 > 0.999). The RSD of intra-day and inter-day variations ranged from 0.2% to 2.7% and 0.3% to 1.7%. The recovery of the assay was in the range of 91.7–107.6%. The method was successfully applied to the simultaneously determination of 6 furocoumarins in Radix glehniae from different areas.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it