# Brine analysis

### Request payload

```json
{
    "method": "scalechem.brineAnalysis",
    "params": {
        "chemistryModel": "chem",
        "waterAnalysisInputs": [
            ...<snip>...
        ]
    }
}
```

<table data-header-hidden><thead><tr><th width="223.33333333333334">params</th><th>type</th><th>description</th></tr></thead><tbody><tr><td><strong>params</strong></td><td>type</td><td>description</td></tr><tr><td>chemistryModel</td><td>string</td><td><a href="..#chemistry-model">chemistry model name</a></td></tr><tr><td>waterAnalysisInputs</td><td>array of objects</td><td><a href="../../group1/api-functions/wateranalysis">water analysis inputs</a></td></tr></tbody></table>

Brine analysis uses the same input options as the water analysis in OLI Engine API. Please refer to [water analysis](https://devdocs.olisystems.com/group1/api-functions/wateranalysis) for the specifications of **params.waterAnalysisInputs**.

{% hint style="info" %}
In addition to the inputs shown above, some optional properties may also be specified. They can be viewed at [Optional Inputs](https://devdocs.olisystems.com/optional-inputs).
{% endhint %}

### Response (status = PROCESSED)

Please refer to the [response ](https://devdocs.olisystems.com/group1/api-functions/wateranalysis#response-status-processed)of water analysis in OLI Engine API.