{"public_id":"cl_7c9ce936c02768989ec5070a156fb067","status":"active","superseded_by_public_id":null,"corpus_id":103783791,"text":"The sensor shows linear Stern–Volmer behavior with R2 = 0.9882 and a detection limit of 12.3 × 10−8 M.","confidence":0.98,"paper":{"corpus_id":103783791,"title":"A hybrid magnetic core–shell fibrous silica nanocomposite for a chemosensor-based highly effective fluorescent detection of Cu(II)","url":"https://sah.borca.ai/papers/103783791"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.98,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_249980ae5f88135dbe560a5f1bbc1b3d","name":"detection limit","description":"The lowest concentration level that the sensor can reliably detect.","types":["performance metric"],"url":"https://sah.borca.ai/concepts/co_249980ae5f88135dbe560a5f1bbc1b3d"},{"public_id":"co_c748a288ac87aab48d233fa9a70b13fa","name":"fluorescence spectrometer","description":"An instrument used to measure fluorescence spectra and sensor response.","types":["instrument"],"url":"https://sah.borca.ai/concepts/co_c748a288ac87aab48d233fa9a70b13fa"},{"public_id":"co_e805ce2e4f2c5f4c4f56a35b9510da98","name":"Stern–Volmer plot","description":"A linear quenching or response relationship used to characterize sensor behavior.","types":["analysis plot"],"url":"https://sah.borca.ai/concepts/co_e805ce2e4f2c5f4c4f56a35b9510da98"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_7c9ce936c02768989ec5070a156fb067"}