Empower TIp: Review Window and the Processing Method

In this tip, we are going to conclude our discussion on using Custom Fields as they relate to GPC/SEC data by looking at the Custom Fields that come with the GPC Default project. The GPC Default project is one of many default projects that is available with your Empower installation.

STEP 1 Copy the eight Custom Fields from the GPC Default project into your own project. These Custom Fields are designed to indicate the molecular weight either above or below a percentage of the distribution as well as the molecular weight at a particular percentage of the distribution.

For example, the Mn_above_90pct_of_distr indicates the Mn above 90 percent of the distribution. The numerator of the equation is the sum of the slice areas that meet that criterion. The denominator of the equation is the ratio of slice area to slice molecular weight, for those slices that meet that criterion, and the values for this quotient are then summed.

If the Slicing table in the Processing Method is populated, these values are automatically calculated when the data is processed.

It’s that easy!