A new sample introduction system for atomic spectrometry combining vapour generation and nebulization capacities
Bibliographic record
Abstract
The Multimode Sample Introduction System™ (MSIS™, patent pending), a system that combines the benefits of nebulization and vapour generation in a single device, is described. MSIS™ delivers detection limits 10- (for Te at 238.578 nm) to 90-fold (for Sb at 217.582 nm) lower than conventional nebulization for a variety of elements that can be transformed into volatile species by reduction of aqueous ions, in the appropriate oxidation state, with tetrahydroborate(III). The device provides similar sensitivities and significantly improves precision compared with a frit-based gas–liquid separator for hydride-forming elements. In addition, the device minimizes the transfer of solution from the vapour generation process to the excitation source but retains similar efficiency of mass transfer when used for conventional nebulization. MSIS™ can be operated as either a vapour generator or as a conventional spray chamber, separately or simultaneously, while retaining the sensitivity and detection limits of both modes of sample introduction.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.002 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".