Detection of drugs of abuse in exhaled breath using a device for rapid collection: comparison with plasma, urine and self-reporting in 47 drug users

by: Olof Beck, Niclas Stephanson, Sren Sandqvist and Johan Franck

link:
http://m.iopscience.iop.org/1752-7163/7/2/026006

Below is a simple report that converts raw data to plain language text.

The example is of a style that has been dubbed, the Physicians report, as it simply states if a component is found and above a value. If the calculated amount is above the Cutoff amount, a custom “Outcome” column will state that the value is “Positive”, otherwise its “Negative”.

It also has a custom column, that will display the calculated amount if the value is above the Cutoff and a peak was detected. If a peak is detected, but the value is below the cutoff the cell will display “< Cutoff”, otherwise if a peak is not detected it will display either NA or NF.

Click here to download the Template: Physicians Report

Simply unzip into the folder C:\TraceFinderData\3.3\Templates\ReportTemplates

or unzip into the folder C:\TraceFinderData\32\Templates\ReportTemplates

The excel like script for the Calculated Amount (AMT) column is:

if(quanresults.calcamount(“Report”) <= compound.LOR,”<Cutoff”, quanresults.calcamount)

It simply takes the calculated value and compares to the LOR (Limit of Reporting) value in the method if is equal to of less than the set limit it will show “<Cutoff”, otherwise it will report the calculated value.

The script for the “Outcome” column is very simple.

IF(quanresults.LORFlag= TRUE, “Positive”, “Negative”)

If the value triggers the flag, the flag value is TRUE. IF true show “Positive” in the cell, otherwise show “Negative”

For the function of the LOR flag to work in the case of all reports, the setting to report a value above a set limit and not to show components that didn’t meet that criteria, two setting mu be activated in the method as shown below.

The setting in the table filter text field limit the reporting components in to only be Target Compounds and not display Internal Standards.

quanresults.compoundtype= “eTargetCompound”

TraceFinder has a Excel-like report template creation tool. It was first introduced as a plug-in beta release in TF 3.1 and a final product in TF 3.2. After feedback from the user based we made some modifications that should allow for easier template editing and creation. The more feedback we receive the better we can make this tool in the future.

The example below goes into detail how to create some very custom data table information and flagging. This includes taking values that are stored as numbers or TRUE/FALSE text and changing then to read PASS/FAIL with highlighted, bolded and color changed text. It also includes setting up test range criteria for the information to be flagged against without the number having to appear in the data table as being read directly from the results table in the batch to give the PASS/FAIL flag.

The report is a Batch report that shows only compounds that were found to be positive in a concentration above the limit of reporting used set in the Master Method template. It uses typical fields in the header and contains a blend of regular data columns and custom columns in the table. It is separated by the Sample ID as a line unto itself between each set of sample results.

Below is shown the data fields used to create the table.

The statement in the Table Filter ensures that only compounds that have result greater than the Limit of Reporting (LOR) value, set in the Master Method template, will be displayed in the report.

Setting the sorting by the Sample ID and having it be the top most data field in the selector, allows for that value to be used as the Repeat Header Per Group field. By unchecking the box, the field won’t display on the row, but will appear in the separation row above only.

The listings below are the custom fields created to do the special flagging a show data. If you notice these are all the same small scripts that you would use in Excel to create the information. The difference is that the underlying individual results don’t have to be on the sheet, in a hidden column or a second worksheet. It just reflective of the results in the batch. The functions are entered into the Formula text cell when the data field is selected.

The way these statements work is whatever is designated as the “=” state(True or False) the first text will be set to display for that state. All other states will render the second text.

To get the data field to use in the functions below simply click on a data element in the selector, highlight the text in the Formula cell and copy/paste it into a custom column’s formula text field and then edit the function around it.

IS Flag

IF(quanresults.ISTDAreaOutOfRangeFlag=False, “Pass”, “Fail”)

This function looks at the internal standard out of range flag. It creates the condition that if the flag is FALSE, meaning it is not indicating a failure of the flag criteria, the show “Pass” in the cell. If the flag is TRUE, meaning that the criteria indicates it has failed, the show “Fail” in the cell.

IR Flag

IF(quanresults.irFlag=False, “Pass”, “Fail”)

This function shows that if the Ion Ratio criteria has been meet by all confirming ions then the flag will be False. This state will then display “Pass” in the cell. If the flag is True then “Fail” will be displayed. The way these statements work is whatever is designated as the “=” state(True or False) the first text will be set for that state. All other states will render the second text.

IR2

quanresults.ionRatio(1,2)

One limit of the tool is that the table builder can only natively create one column for a set of information. However, you can create a custom column to show 2nd, 3rd, etc… of a data entry. One instance of this is a second confirming ion ratio. The setting (1,2) will display the result for quantitative peak 1, confirming peak 2.

mz Flag

if(quanresults.mzDelta(“Report”) > “2.5”,”Fail”, “Pass”)

This function sets the high precision number of the delta mass, derived from the expected mass minus the actual measured mass, which is always an abolute number, to display “Fail” if its greater than 2.5. If not or less then display “Pass”.

RT Flag

IF(ABS(quanresults.RTDelta(1,0)) >=0.06, “Fail”,”Pass”)

This function declares with the ABS statement that the RT delta result number which can be positive or a negative number will be evaluated by its positive equivalent. If it’s greater than or equal to 0.06 then display “Fail”, in all other cases display “Pass”.

Ion CoE Flag

IF(AND(quanresults.RTDelta(1,1) < 0.01,quanresults.RTDelta(1,1) > -0.01),  “Fail”,”Pass”)

This function combines two conditions the value of these two confirming ions, designated by the values (1,1), must fall outside these two conditions to display “Fail”, if it falls between them then display “Pass”.

Lastly I set conditional formats for each column separately for the custom flagging that if the cell value was “Fail” that it would change the Font to bold and red and the borders of the cell red.