Long-Term Stability of 5-Fluorouracil in 0.9% Sodium Chloride after Freezing, Microwave Thawing, and Refrigeration
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
OBJECTIVE: To investigate the stability of 5-fluorouracil diluted in 0.9% sodium chloride (normal saline [NS]) after freezing, microwave thawing, and storage for 28 days at 5°C ± 3°C. METHODS: Polyvinylchloride (PVC) infusion bags (n = 5) containing 5-fluorouracil 800 mg/100 mL were frozen for 79 days at -20°C. The bags were then thawed in a microwave oven and stored at 5°C ± 3°C for 28 days. The concentration of 5-fluorouracil was measured by high-performance liquid chromatography. Visual and microscopic inspections were performed and pH was measured periodically during storage. Solutions were considered stable if the lower limit of the 95% confidence interval of the concentration versus time profile remained greater than 90% of the initial concentration. RESULTS: No colour change or precipitation was observed in any of the solutions. Slight changes in pH were observed during refrigeration. 5-Fluorouracil solutions were stable during storage at 5°C ± 3°C for 28 days, as indicated by the results of high-performance liquid chromatography. CONCLUSION: 5-Fluorouracil 8 mg/mL in NS may be prepared in advance, frozen and stored in PVC bags, and thawed before use. The solutions remained stable after freezing at -20°C for 79 days followed by storage at 5°C ± 3°C for up to 28 days.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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