Haldane apparatus
E834156
The Haldane apparatus is a classic gas analysis device developed by physiologist John Scott Haldane to measure the composition of respiratory gases in studies of respiration and environmental physiology.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Haldane apparatus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9980538 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Haldane apparatus Context triple: [John Scott Haldane, notableWork, Haldane apparatus]
-
A.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
-
B.
Bunsen cell
The Bunsen cell is a 19th-century zinc–carbon electrochemical cell that provided a relatively powerful and inexpensive source of direct current for early laboratory and industrial applications.
-
C.
Bridgman anvil cell
The Bridgman anvil cell is a high-pressure device that uses opposed anvils to compress small samples to extreme pressures for experimental research in physics and materials science.
-
D.
Bunsen
Bunsen is a German surname most famously associated with chemist Robert Bunsen, co-developer of the Bunsen burner.
-
E.
Hetzel
Hetzel was a prominent 19th-century French publisher best known for publishing major literary works, including those of Victor Hugo and Jules Verne.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Haldane apparatus Target entity description: The Haldane apparatus is a classic gas analysis device developed by physiologist John Scott Haldane to measure the composition of respiratory gases in studies of respiration and environmental physiology.
-
A.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
-
B.
Bunsen cell
The Bunsen cell is a 19th-century zinc–carbon electrochemical cell that provided a relatively powerful and inexpensive source of direct current for early laboratory and industrial applications.
-
C.
Bridgman anvil cell
The Bridgman anvil cell is a high-pressure device that uses opposed anvils to compress small samples to extreme pressures for experimental research in physics and materials science.
-
D.
Bunsen
Bunsen is a German surname most famously associated with chemist Robert Bunsen, co-developer of the Bunsen burner.
-
E.
Hetzel
Hetzel was a prominent 19th-century French publisher best known for publishing major literary works, including those of Victor Hugo and Jules Verne.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
gas analysis apparatus
ⓘ
laboratory equipment ⓘ scientific instrument ⓘ |
| appliesMethod |
chemical absorption of gases
ⓘ
volumetric gas analysis ⓘ |
| comparedTo |
Hempel gas apparatus
NERFINISHED
ⓘ
Orsat gas analyzer NERFINISHED ⓘ |
| developer | John Scott Haldane NERFINISHED ⓘ |
| fieldOfUse |
environmental physiology
ⓘ
gas physiology ⓘ occupational medicine ⓘ respiration research ⓘ respiratory physiology ⓘ |
| hasCategory |
analytical chemistry instrument
ⓘ
physiological measuring device ⓘ |
| hasQuality |
high analytical precision for gas fractions
ⓘ
laboratory bench-top design ⓘ manual operation ⓘ |
| historicalPeriod |
early 20th century
ⓘ
late 19th century ⓘ |
| influenced |
environmental gas monitoring techniques
ⓘ
modern gas analyzers ⓘ respiratory metabolic carts ⓘ |
| mainFunction | measurement of respiratory gas composition ⓘ |
| measures |
carbon dioxide concentration in gas mixtures
ⓘ
inert gas concentration in gas mixtures ⓘ nitrogen concentration in gas mixtures ⓘ oxygen concentration in gas mixtures ⓘ |
| namedAfter | John Scott Haldane NERFINISHED ⓘ |
| notableFor |
enabling quantitative studies of human respiration
ⓘ
standardizing respiratory gas analysis methods ⓘ |
| partOf | classic gas analysis laboratory setup ⓘ |
| typicalSetting |
industrial hygiene laboratory
ⓘ
medical research laboratory ⓘ physiology laboratory ⓘ |
| usedFor |
analysis of exhaled air
ⓘ
analysis of inspired air ⓘ calculation of carbon dioxide production ⓘ calculation of oxygen uptake ⓘ calibration of respiratory physiology experiments ⓘ determination of respiratory exchange ratio ⓘ |
| usedIn |
diving and hyperbaric research
ⓘ
early studies of mine atmosphere ⓘ high-altitude physiology research ⓘ |
| uses |
absorption pipettes
ⓘ
burette ⓘ manometer ⓘ mercury or water as confining liquid ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Haldane apparatus Description of subject: The Haldane apparatus is a classic gas analysis device developed by physiologist John Scott Haldane to measure the composition of respiratory gases in studies of respiration and environmental physiology.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.