Monthly Archives: August 2015
Internal Standard Charting Report – TF 4.1
This a useful and simple report that is best viewed in Excel.
Click here to download the zip file: Internal Standard Response Chart
Place in the folder: C:\TraceFinderData\3.3\Templates\ReportTemplates
The chart shows the response in a line chart over the entire batch. It should show you the performance of the internal standard and if you have carry-over in samples such as a Solvent or Double-Blank sample. This is useful in determining the health of the system and variability of the assay over time.
The report is currently set up to show 59 samples from the data table. If your data set is typically large or smaller you can adjust the ending row in the series section of the chart dialog. Simply open the editor for this report, double click on the chart and the dialog will open as shown below. Expand the section for the Data Source/Series and enter your typical ending row. Any empty cells will not be charted.
Video – How to create NIST 2014 custom libraries with FreeStyle
To make custom libraries for use in TraceFinder 3.3 Unknown Analysis, the easiest way is to curate your spectra with FreeStyle and send to the NIST 2014 application which comes with the purchase of any NIST 2014 library.
TF3.3 Example of a Sample Report Using Compound Groups
This a series of reports based on one set of common elements. The only difference is the activation of elements in the grid. This shows how one report can simply be utilized to create multiple reports. Utilizes basic Excel functions.
This particular report makes use of two fields in the method that contain free text entries on a compound basis and are repurposed. The fields are used to add a comment for labeling a compound and to calculate a flag based on library score.
Click here to download the templates. Sample Quantitation-Sorted by Compound Group then Comment With Library01
Simply unzip into the folder C:\TraceFinderData\3.3\Templates\ReportTemplates
The data table utilizes many custom functions to create this functionality. These functions are typical Excel function statements. All the examples I used to construct this report were found by searching for them on the net.
The data table utilizes a sort function by utilizing the Compound Group as the first sort. By checking the Repeat Header Per Group element and unchecking the Grid Entry allows for the element not to shown in the grid but raises it to the row above the set of rows that represent the Compound Group. This give a natural division between the groups. The second sort can be by compound name, or by comment. In these reports we utilized the comment to label the compounds as a parent or metabolite. By using the secondary sort in Descending order you can ensure the parent is listed first in the group and metabolites next in alphabetical order.
The data table is constructed as listed below.
- Compound Name – peakresult.compoundName
- RT(Custom Column)– if(peakresult.peakfound = false, “N/F”, Text(peakresult.rt, “0.00”))
- This function declares a N/F for not found compounds, but sets the RT to a limit of 2 decimal places
- RT Drift – peakresult.rtDrift
- Quan Peak – peakresult.detectedMass
- MZ Delta PPM (Custom Column)– IF(peakresult.peakfound = false, “N/F”,(quanresults.mass-quanresults.detectedMass)/quanresults.mass*1000000)
- This function sets the cell to show N/F in case of a peak not being found. If a peak is found it calculates the PPM mass difference and sets the value to be positive.
- Response – quanresults.totalresponse
- Calculated Concentration (Custom Column)– if(peakresult.peakfound = false, “N/F”, if(sample.issolventsample,””,quanresults.reportedinsampleconcentrationprefix & Text(quanresults.reportedinsampleconcentrationdouble, “0.000”)))
- This function sets the cell to show N/F in case of a peak not being found. It sets the value of the calculated amount to be converted to TEXT and limited to 3 decimal places of precision.
- Outcome (Custom Column)– IF(quanresults.calcAmount= “N/F”, “Absent”, IF(VALUE(quanresults.calcAmount)>= VALUE(compound.LOR), “Present”, “Absent”))
- This function sets the cell to show “Absent” in case of a peak not being found. The next if statement sets the VALUE of the stored results to number. At times in reports, the results may be a string or text, by using VALUE the text is set to a number. The number of the results for Calculated Amount is compared to the Limit of Reporting value set in the method. If it is greater than the LOR value then “Present” is reported in the cell. In all other cases “Absent” is reported. This function could simply report the presence or absence of the compound utilizing the LOR flag as being TRUE or FALSE. However, that flag is only present for Unknown/Specimen sample types. This function allows the statements to be utilized across all sample types.
- Library Score % – quanresults.libraryMatchScore
- Lib Score Threshold – compound.CASNumber
- Library Flag (Custom Column)– IF(INT(quanresults.libraryMatchScore)>= INT(compound.CASNumber), “Pass”,”Fail”)
- This statement converts the values of the Library Match Score and the value entered into the Case Number to Integers. The value then can be utilized to evaluate for being above the threshold value which the Case Number value was utilized for. If it’s above the value then the flag is “Pass”, otherwise the cell will reflect “Fail”.
- Comment – compound.LIMSID
The RED text in the Outcome column utilizes the settings below.