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Find MoNA reference spectra with Duaer

In Duaer, find reference MS/MS spectra in MoNA by InChIKey or compound name. One successful search uses 1 credit.

What you get

MoNA spectra in the Duaer data market uses 1 credit per successful search, including a search with no match.

Each spectrum includes its peaks to compare with your unknown.

To work an unknown feature step by step, see Annotate an unknown feature with Duaer.

Search on the canvas

  1. Open the node creator, pick Duaer Data → MoNA spectra.
  2. Fill InChIKey (such as a Mass candidates result), or Compound name (default glucose).
  3. Limit defaults to 10, max 20. Execute.

A successful search uses 1 credit. Empty input or a failed source uses 0.

Call the API

  • GET https://api.duaer.com/v1/data/mona?...
  • Authorization: Bearer <Duaer key>

The call skill below matches Copy skill.

Call skill

Same text as Copy skill.

---
name: duaer-mona
description: >-
  Find reference MS/MS spectra in MoNA by InChIKey or compound name through Duaer.
  One successful search uses 1 Duaer credit.
---

# Duaer MoNA spectra

Find reference spectra for a compound in MassBank of North America (MoNA) through Duaer with a Duaer key.

## Call

`GET https://api.duaer.com/v1/data/mona?inchikey=WQZGKKKJIJFFOK-GASJEMHNSA-N&limit=5`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

Provide `inchikey` or `words`.

- `inchikey` — exact compound, such as a https://skills.duaer.com/mass-candidates.md result.
- `words` — compound name, used when `inchikey` is empty.
- `limit` — optional. From 1 to 20. Default 10.

## Result

Each item has `source`, `title`, `url`, `summary`, `monaId`, `compound`, `formula`, `inchikey`, `msLevel`, `ionMode`, `precursorType`, `precursorMz`, `instrument`, `peakCount`, and `peaks` (`mz:intensity` pairs).
Compare `peaks` with your unknown spectrum, or pass them to https://skills.duaer.com/masst.md.
To work an unannotated feature step by step, follow https://skills.duaer.com/metabolic-dark-matter.md.

## Credits

One successful search uses 1 credit, including a search that finds no match.
Empty input, a failed source, or no remaining credits uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.

Questions

How many credits does a MoNA spectra search use in Duaer?

One successful search uses 1 credit, including a search with no match. Empty input or a failed source uses 0.

In this section

Get started

Annotate an unknown feature with Duaer

In Duaer, work an MS feature that no library identified: library match, mass candidates, reference spectra, and MASST, one Duaer Data call per step.

Get started

Match spectra in MassBank with Duaer

In Duaer, match MS/MS peaks, an exact mass, or an InChIKey against MassBank. One successful search uses 1 credit.

Get started

List mass candidates in Duaer

In Duaer, list PubChem compounds that fit an observed m/z and adduct. One successful search uses 1 credit.