What means Purity (Component) in Review tab?

lczenith
lczenith
in Software Products
Hi all,

What means Purity (Component) in Review tab and what is the default calculation? I didn’t find in Empower help.


Thanks.


Answers

  • Empower2019
    Empower2019
    Its where you enter the purity of your standard used for quantitation. Typically you enter the standard weight into the "Value" tab of the component editor. Empower then calculates concentration by multiplying standard weight by the purity (as a %) to get concentration.  But many companies already calculate the final concentration of the standard and enter this value into "Value" so that no further need for Purity or Sampleweight/Dilution columns are required. It depends on your company and SOPs. 
  • lczenith
    lczenith
    Dear @Empower2019,

    I though was this but, as you can see in figure I have different values. The value in component tab of the STD is 100.4 and the purity in the review tab is 100. I continue don’t understand this field.

    Thanks for your atention.

  • Empower2019
    Empower2019
    Empower divides whatever value you enter into Purity by 100 during its calculation so if the purity of your standard is 99.7, enter 99.7 in Purity and then Empower sees this value as 0.997 as it multiplies whatever you have in Value by 0.997. 
    If you leave Purity blank, Empower bypasses it. 

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