Sodium phosphate buffer

kgmicrobe.ingredient:sodium_phosphate_buffer defined mix MAPPED NCIT CLOSE_MATCH

Ontology mapping

Primary identifier
kgmicrobe.ingredient:sodium_phosphate_buffer
Ontology term
NCIT:C29321 — Phosphate Buffer
Ontology label
Phosphate Buffer
Notes
Imported from mim-queue (source_id=mediadive.ingredient:1753); no CAS-RN or CHEBI/NCIT match. Curator review needed. Sodium phosphate buffer is a formulation variant, not identical to the generic phosphate buffer class.
kg-microbe node
kgmicrobe.ingredient:sodium_phosphate_buffer

Physicochemical roles

Synonyms (5)

SynonymTypeSourceOccurrences
Sodium phosphate buffer RAW_TEXT mim-queue
Sodium phosphate buffer (10 mM; pH7.1) RAW_TEXT culturemech:output/ingredient_occurrences.tsv
Sodium phosphate buffer (25 mM; pH 3.4) RAW_TEXT culturemech:output/ingredient_occurrences.tsv
Sodium phosphate buffer (10 mM, pH 7.1) RAW_TEXT culturemech:output/ingredient_occurrences.tsv
Sodium phosphate buffer (25 mM, pH 3.4) RAW_TEXT culturemech:output/ingredient_occurrences.tsv

Evidence (1)

CURATOR_JUDGMENT via ingredient_mapping_review_2026-05-05

Sodium phosphate buffer is a formulation variant, not identical to the generic phosphate buffer class.

Occurrence statistics

Total occurrences
19
Distinct media
19

Curation history

TimestampCuratorActionNew statusChanges
2026-04-30T18:43:03.698454+00:00 audit_import_ingredients[mim-queue] CREATED_AS_UNMAPPED UNMAPPED Imported from mim-queue (source_id=mediadive.ingredient:1753); no CAS-RN or CHEBI/NCIT match. Curator review needed.
2026-05-02T03:12:19.899797+00:00 auto_classify_ingredient_type AUTO_CLASSIFY_INGREDIENT_TYPE set ingredient_type=STOCK_SOLUTION (name matches solution pattern 'phosphate buffer')
2026-05-02T03:18:21.971163+00:00 resolve_unmapped_v2 AUTO_UPGRADE_TO_NCIT primary UNMAPPED_0525 → NCIT:C29321 (strategy=stem-match)
2026-05-05T00:00:00+00:00 ingredient_mapping_review_2026_05_05 CORRECTED MAPPED Changed identifier from NCIT:C29321 to kgmicrobe.ingredient:sodium_phosphate_buffer and retained NCIT:C29321 only as CLOSE_MATCH. Sodium phosphate buffer is a formulation variant, not identical to the generic phosphate buffer class.
2026-06-03T02:06:01.750955+00:00 infer_roles_from_name_lists ANNOTATED Added media role: BUFFER (confidence: 0.80)
2026-07-20T00:00:00+00:00 migrate_media_roles_to_facets ANNOTATED Migrated legacy media_roles to role facets (#128): BUFFER -> physicochemical_roles.BUFFER
2026-08-27T03:16:39.519871+00:00 refresh_occurrence_statistics CORRECTED occurrence_statistics 0/0 -> 19/19 (media_count/total_occurrences), derived from distinct CultureMech recipe ids in the #337 occurrence table. The prior values came from the importer retired in #453, whose media_count counted a list truncated to 50 examples (#449). [source=ingredient_occurrences.tsv culturemech_rev=15a4da5c08 rows=194137 distinct_recipes=15257]
2026-08-30T04:48:06.233536+00:00 claude_culturemech_alias_backfill ADDED_SYNONYMS Added 4 CultureMech recipe surface form(s) that folded onto this record's published label but were absent from MIM's label index, so CultureMech could not resolve them: 'Sodium phosphate buffer (10 mM; pH7.1)' (x10 CultureMech mentions); 'Sodium phosphate buffer (25 mM; pH 3.4)' (x9 CultureMech mentions); 'Sodium phosphate buffer (10 mM, pH 7.1)' (x2 CultureMech mentions); 'Sodium phosphate buffer (25 mM, pH 3.4)' (x1 CultureMech mentions). Source: culturemech:output/ingredient_occurrences.tsv.