GENESIS SPECTRUM USER MANUAL

Chapter 6 Peak Identification and Qualitative Analysis6.2 Manual Peak IdentificationManual Peak identification can be accomplished in several ways using the expanded PeakID panel. Typing in known elements may be helpful if the element list or some of theelements present are known. In the Element edit box type either the element name or theelements atomic number and press enter to display the element markers. To add theelement into the list click the “Add” button. This can be repeated for each known element.The black cursor on the spectrum window can also be used to identify peaks. Click on thepeak of interest. Scroll through the Possible element list to find a probable match. The listis ordered so that the peaks that are closest in energy to the cursor position are presentedfirst in the list. Clicking on the possible elements list will display all the energies that areassociated with that element on the spectrum. Highlight the element to be added to thepeak ID list and click “Add”. To remove an element in the list, highlight the element inthe selected element box and click “Delete”.Another method for quickly adding elements to the list is by using the Z+ and Z- buttons.If there are numerous peaks of elements close in atomic number using the Z+ and Z-buttons may be used to add the elements to the Possible elements list. Click on the lowestenergy peak in the group. Click the Z+ button and the element in the edit box will go tothe next possible atomic number in the periodic table. The Z- goes through the periodictable in the order of decreasing atomic numbers. At any time the user can add the currentlyhighlighted element by pressing the “Add” button.In many cases, using the AutoPeak ID and finalizing the list manually, is the fastest andmost accurate way to identify the peaks in a spectrum. In some cases, the Auto Peak IDmay be correct, but the user may want to omit a particular element in the list or, an elementthat was not identified may be added. Making changes in the auto ID element list is easy.First, click on the “Peak ID” button in the main panel. Expand the peak ID portion of themain panel and adjust the element list, as needed, by adding or deleting elements.38 GENESIS Spectrum - User’s Manual