Often you will want to investigate how the diluent you use in a mixture impacts the output you are measuring.
In Synthace, this specifically relates to the Diluent To Use parameter in the Make Mixtures and Mix Onto elements.
In this tutorial you will learn:
Where to add categorical diluent factors.
How to define a categorical diluent factor.
How to set a diluent factor as a Quasi-Replicate
How to set a diluent factor as Hard To Change
Defining a categorical diluent factor
Adding a categorical diluent factor.
Build a workflow that defines a set of liquids and provides those liquids to a Make Mixtures element.
Switch the workflow builder into DOE Mode.
Note: only the elements that can have DOE factors applied to their parameters will be interactive and display in colour. If the workflow has not already been added to a Synthace experiment you will be prompted to do so before being able to enter DOE mode.
Click on the Make Mixtures element and toggle on the Diluent To Use parameter to identify that you intend to add different diluents as a factor.
Click the adjacent factor button in the Instance Panel to launch the DOE Factor Panel.
Click on the “ADD” button to select a factor type.
Select the “New Factor” Option to open the Factor Definition Panel.
Defining factor properties
In the Factor Definition Panel, click on the Levels entry field and enter each diluent. Liquids previously defined in the workflow will appear in the dropdown.
In this example, Buffer A, Buffer B and Buffer C have been added. Since these are categorical factors, there is no option to enter the concentration or units of each buffer here.
To treat this factor as a Quasi-Replicate click on the check box “Quasi-Replicate”. To learn more about Quasi-replicating factors see here.
To treat this factor as “Hard to change” click on the check box. To learn more about hard to change factors see here.
Click on “Add Factor” to save the factor to your Factor Table, where you will see a summary of the factors settings.
Well done on making it to the end of this tutorial.
To learn how to define a categorical mixture component factor, click here.
To learn how to define a custom categorical factor, click here.
To learn about other factor types, click here.