The phenomenon you describe is inevitable for broad polymer samples: The signal intensity (SI), of all detectors depends on injected mass (concentration and injection volume), a sample related constant k Sample (i.e., response factor), and a detector…
Hi,
In your case, the path of the column database must be adjusted. This is done as follows:
1) Close WinGPC software 2) Search registry editor (Windows logo key + "regedit") and run it as administrator (possibly involve your IT department) 3) Find…
Hello bofzgi84 ,
As an update to this, a colleague of mine has pointed out that for LC data the Compound ion count threshold settings are not present. I took the above screenshot with no data file loaded, so all possible options were enabled. I can…
Was the air/water check before you changed the septum and liner acceptable? 60% Oxygen...what is the Nitrogen percentage? 60% Oxygen would either be a gigantic leak and the Nitrogen percentage will be off the charts, or there is oxygen in the carrier…
Hi ,
I have try the method (Isocratic) on the different lines (A,B,C,D) and compare the results . It appear that there was a difference (shift in retention time about 2 mins) in the result were line (A) is used in the method . Thus the problem might…
Dissolution testing is labor intensive as well as a technique and time dependent analytical procedure. A typical dissolution workflow consists of several steps including dissolution media preparation, media filling, introducing the dosage form into the…
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer systems, RNA kit (15 nt) (p/n DNF-471-0500/1000), HS RNA kit (15 nt) (p/n DNF-472-0500/1000), Small RNA kit (p/n DNF-470-0275)
Issue
Which kit should be used to analyze single...
This Information Applies To: Agilent 6820, 6890, 7820A GC systems with a Split/Splitless (SSL) inlet
Issue
Non-volatile sample matrix components will accumulate in the inlet liner and impact on analytical performance. The inlet liner should be changed...
This Information Applies To: Agilent headspace samplers (HS)
Issue
GC cycle time needs to be calculated correctly. Too short a GC cycle time will reduce sample quality and possibly stop the analysis prematurely. Too long GC cycle time can cause...
This Information Applies To: Agilent 7820A GC
Issue
7820A GC is designed with simplified keypad that comes with five buttons. They are Stop, Prep Run , Start, Up and Down arrow buttons. Changing the IP address requires a different method compared...
This Information Applies To: Agilent Single Needle Autosamplers
Background
Sometimes the user may observe liquid flowing from Port four on the autosampler injection valve. During an injection sequence, it is normal to have liquid from port four...
This Information Applies To: Agilent 4200, 4150, 2200 TapeStation systems
Issue
Can I run an assay using the ladder or sample buffer from a different assay if I have run out of the appropriate assay ladder or sample buffer? Is it possible to run...
This Information Applies To: Agilent ICP-MS 7700, 7800, 7850, 7900, 8800, and 8900 systems
Issue
Peristaltic pump tubing that has lost its elasticity will not deliver the sample to the nebulizer correctly. When the pump tubing appears limp or flattened...
This Information Applies To: Agilent AriaMx real-time PCR system
Issue
AriaMx touch screen displays error code 90 after the Instrument Health Check (IHC), which happens when the AriaMx is switched on, or after running the onboard diagnostic tests...
This Information Applies To: Agilent AriaMx real-time PCR system, AriaMx optical modules
Issue
AriaMx users can change which AriaMx optical modules are installed to upgrade the instrument capabilities or to troubleshoot.
Items Required
Any...
This Information Applies To: AriaMx real-time PCR system
Issue
Error 43 is displayed on the AriaMx touch screen. Error 43 is a voltage error and it normally indicates that the cartridge LED voltage or motor voltage being detected is abnormal. Sometimes...