How to report the maximum pressure during a chromatographic run (Part 15) - Tip97

OBJECTIVE or GOAL

Welcome back to Get Empowered! In the last Empower tip-of-the-week post for Empower Chromatography Data Software, we learned how to report pressure at a certain time point in the chromatogram (Tip #96).

Creating Custom Fields in Empower:

• #82: The basic steps on creating a Custom Field
• #83: How to create a Custom Sample Set Field
• #84: How to create a Component Custom Field
• #85: How to create a Peak Custom Field
• #86: How to copy a Custom Field from one project to another
• #87: How to modify a Custom Field
• #88: How to create a Result Custom Field
• #89: How to modify a Custom Field that applies to specific samples and/or specific peaks
• #90: How to use Empower to evaluate whether the sample meets specific criteria
• #92: How to create one custom field to determine a sample pass/fail
• #93: How to create an Intersample Custom Field
• #94: How to create Intersample Custom Fields with a summary function
• #95: The difference between Summarize Custom Fields and Summarize Custom Fields Incrementally
• #96: How to report the pressure and temperature at a certain time point within a chromatogram

This week, I want to share a follow-up question I received from last week’s tip (Tip #96):

Q: How can I report the maximum pressure (or other channel, such as temperature) during a chromatographic run?

A: This is important to know because you do not want to exceed the pressure recommendations from the column manufacturer.

In this tip, I will show you how to report the maximum pressure during a chromatographic run (Part 15).

Let’s get started.

ENVIRONMENT

• Empower

PROCEDURE

1. Create a Peak Type Custom Field, ‘data type real’. Working with ‘YValue’ as we did in the last tip, simply enter ‘Retention Time’ into the brackets rather than a specific retention time (Figure 1).
   

   Figure 1

2. Create a Result Type Custom Field, ‘data type real’. Use the MAX function to report maximum pressure (Figure 2).
   

   Figure 2

3. You’ll notice that I applied the Method Set to an injection and the pressure at various time points is displayed (Figure 3).
   

   Figure 3

4. In the Results window, view the maximum pressure in the Chromatogram Result table (Figure 4).
   

   Figure 4

It’s that easy!

ADDITIONAL INFORMATION

Final note: This procedure can be followed using the QuickStart or Pro interface.