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To ensure kit specifications are met, we are constantly evaluating our reagent kits for the Agilent Fragment Analyzer systems. We recently evaluated the injection methods for three qualitative kits:
During this evaluation, we noticed the occurrence of sample overloading. To reduce saturation in the higher concentration range, the injection voltage was lowered to optimize the signal. With the new lower injection method, the signal was reduced two-fold over the concentration range without affecting kit specifications.
To differentiate the method files, the new method file will display the injection voltage at the end of the method name. Please refer to the table for a list of kits and the affected methods.
| Part Number | Product Description | Legacy Method | New Method |
| DNF-910-K0500 and DNF-910-K1000 |
dsDNA 910 Reagent Kit (DNF-910) | DNF-910-33 – DNA 35-1500bp.mthds | DNF-910-33-DNA 35-1500bp-3kv.mthds |
| DNF-915-K0500 and DNF-915-K1000 |
dsDNA 915 Reagent Kit (DNF-915) | DNF-915-33 – DNA 35-5000bp.mthds | DNF-915-33-DNA 35-5000bp-3kv.mthds |
| DNF-930-K0500 and DNF-930-K1000 |
dsDNA 930 Reagent Kit (DNF-930) | DNF-930-33 – DNA 75-20000.mthds | DNF-930-33-DNA 75-20000bp-3kv.mthds |
The examples below show the old (green line) and new (blue line) injection conditions and the overall improvement through the concentration range. An improved linear progression through the higher concentration ranges can be seen.
600 bp fragment, n=6
5 kV injection: R2=0.9016
3 kV injection: R2=0.9892
850 bp fragment, n=6
5 kV injection: R2=0.9846
3 kV injection: R2=0.9954
800 bp fragment, n=6
5 kV injection: R2=0.9760
3 kV injection: R2=0.9794
Update your injection methods of your Agilent Fragment Analyzer system by following one of the two options:
Download the new methods and add to your PC (option 1), or manually change the voltage injection/default settings of the methods on your PC and rename the methods (option 2).
Option 1:
The following steps are required to add the new injection methods to the correct PC location:
There will be 3 folders as follow: 22 cm, 33 cm, and 55 cm
Option 2:
To manually change the method/injections voltage and rename the current method, please follow the steps listed with the enclosed pdf document, available here.
Learn more about the Agilent Fragment Analyzer systems at www.agilent.com/genomics/fragment-analyzer.
For Research Use Only. Not for use in diagnostic procedures.