You can have these expressions in different cc lines, and then use the cc line identifiers to compute the resolutions (this method is maybe easier),Īdd these expressions in one line using the formula you have (that method can become a bit cloudy and more difficult to troubleshoot possible mistakes). As here we do not really mind about this, we can use first.Īnd also some specific LinQ operators as following:ĮlementAt(1) takes the second of the listĮxpressions you will need then in your case:ĬurrentSignal. Ok, in our case, it's a list of one peak retention time. All the expression before is a list of peaks. In your example, you need to have the peak retention time and peak width. This is what field you want to work with from your list of peaks. So we basically filter on the peak index = 2. We filter all peaks which have the current peak index (let's say ID = 1) + 1. We look for peaks that are in each signal. This is you scope where you would look for your objects (here peaks). This field is called " PeakIndexInSignal".įor your goal to get the current and next peak RTs and widths, it can get very easy and handy. The peak index of each signal is registered in one the custom calculation field. The way I would tacle this is the following. One importand thing at the end.i can send you more information on monday evening.I wanna be honest i never had to calculate it.So i hope it leads you to the right direction.So pls wait for an official answer from agilent.Īm Samstag, Januar 12, 2019, 7:11 AM schrieb camelia : Since you have Open Labs 2.3 you can calculate it then within the Software. One option is either ask here for the formula, or contact your agilent support to do it for you. Sadly its a bit more complicated in the editor. Or you setup a custom calculation.Open your processing window. In the end you need to put the Resolution Item in the report.But u still need to know which resulution you need EP or USP. Since you have Open Labs 2.3 you can calculate it, within the Software. He said that Openlabs CDS, only can only do it with a custom calculation. Idk if you need it in the table but im pretty sure u do. ( Need to check the exact term )Or you use your integration events, to do the integration for you. You can try to put the peak in your table“ add compound“ to method. So u Just need The retention time of both components and the width.Īre you using open labs or Chemstation ? Wasnt clear last time, cause you were using chemstation cds and open labs 2.3 in your post. ( Please verify if this is the formula for your resulution ) Ep, Usp etcBeside the fact that this is from 1997 So the resolution is just ( ( ret A - ret B ) : ( width A - width B ) ) multipy 2 But i only wanna give u an idea with this.You still need the „official“ answers from agilent.įound this in google.
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