Monthly Archives: August 2013
Isotope Pattern Scoring in TF 3.1 – Answer to “Ask A Guru” Question
Below is an excerpt from the online help in TF 3.1.
A few questions have come up on how we calculate the isotope pattern score and visualization.
Here is the answer directly from the online documentation. Remember we do have comprehensive manuals and help under the Help Menu.
Link to PDF file: isotope scoring
Experiment with E-books for TF 3.1
The Link below is for an E-book experiment that we in the product management team are looking into as a way to provide portable information to those in the field.
Please take a look at the example of 4 chapters of an ebook for TraceFinder 3.1. It is powered by Inkling.com and you can use a facebook account or register with Inkling to gain access.
We chose Inkling since it is platform independent and works with any browser on any device. Therefore we are not restricted to only IBooks.
Please review and give feedback as to what you like, dislike or would like to see added.
Using Time Range Peak Definition
The ability to define a response for a peak/component/compound is needed at times to define an assymetrical response of an analyte. The definition of the peak is determined by the selected mass or signal, and start and stop time for peak detection.
This is different from defining a specific time and a window for a single point response.
There are two settings for peak detection over a period of time. One is Range-Detected, which uses the peak detection settings to find all peaks between the time points above the base line. Therefore, multiple peaks are individually defined and can be removed or manually adjusted, but responses for all individual peaks are summed together. The second setting is Range-Intergrated, this basically draws an intergration line from point A to point B. The entire response to a threshold baseline represents the peak response. Only the left and right edges can be adjusted.
If the video is blurry please click the cog wheel at the bottom of the panel and increase the video display resolution.
New in TraceFinder 3.1 – Create a Quan Method From Screening Results
TraceFinder incorporates targeted screening into it’s daily workflow capabilities.
In method development or basic analysis, once a compound has been identified as present in a sample, the next logical step is to find out how much is in the sample.
By reviewing data and selecting representative peaks from the screening data review grid, TF has the ability to update compound database, and create a quantitative method from screening results.
As a note here, in method development you can use different instrument methods and update the CDB with found peak information. This CDB info can be used for creation of new quantitative methods.
If the video is blurry please click the cog wheel at the bottom of the panel and increase the video display resolution.