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…
Hello all, What is the difference between the IntelliQuant / no IntelliQuant mode in SemiQuant (QuickScan) ? When I activate this option, the LOQ are modified.
In IntelliQuant mode, the LOQ is calculated according to TDS in sample ? Thanks in advance…
CBM said: As you state, the MessageBox.Show() act as if modeless - but the MessageBox.Show() is not modeless, I don't know the correct term, but something with Threads and Async... And in Visual Studio you likely have a common parent, that makes it act…
Here is a "best of" collection of links to manuals and tools for ICP-MS on Agilent.com.
ICP-MS Hardware Troubleshooting & Maintenance Resources
Technical Overview
Agilent ICP-MS Resource Library
Troubleshooting Tool for ICP-MS Sensitivity…
Here is a "best of" collection of links to manuals and tools for the A gilent Microwave Plasma Atomic Emission Spectrometer (MP-AES) , MP Expert Software, and MP-AES accessories and consumables.
MP-AES User Guides
Agilent 4210 MP-AES User’s Guide…
Here is a "best of" collection of links to manuals and tools for Agilent Atomic Absorption Spectrophotometers (AAS) , SpectrAA Software, and AAS accessories and consumables.
AAS User Guides
Instruments
Agilent 55B AA Spectrometer User’s Guide…
Hello jeremy_lai ,
In your latest expression you have removed the first check to see if there is a qualifier peak present. You need to change your first if statement to read as you had it in your previous post.
if BoundItems[“QualifierPeak”] is None…
This Information Applies To: Agilent Liquid Chromatography (LC) systems
Issue:
Shutting down the HPLC for a long period requires following this general procedure to prevent damage to the system and the column.
Steps to follow:
Store the...
This Information Applies To: Agilent G7129A/B Autosampler with Sample Thermostat/Cooler G7167-60101 or G7167-60005.
Issue:
The autosampler may stop working from time to time, potentially giving off loud noises and switching off the light. The only...
This Information Applies To: Agilent 5977A/B GC/MSD with EI source, EI Extractor Source, or CI Source.
Issue:
During normal operation of the GC/MSD, the source will require cleaning. It is time to clean the source when:
There is a loss in analyte...
This Information Applies To: Agilent HES source, Agilent 5977 Series GC/MSD
Issue:
During normal operation of the GC/MSD, the source will require cleaning. It is time to clean the source when:
There is a loss in analyte response not improving...
This Information Applies To: Agilent 5977 and 5975 Series GC/MSD systems
Issue
The autotune fails and reports the error Tune action stopped: Gain and offset = 0 and peaks are too narrow!
Resolution
The MSD autotune program is run after routine...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
Condition new or cleaned ICP-MS skimmer cones and sampler cones by aspirating a Conditioning Solution before use.
Background
Drift up can be a sign of...
Turn On the GC/MS Interface and Oven Using OpenLab CDS
Multiple Results
This Information Applies To: Agilent GC/MS instruments controlled by OpenLab CDS software
Issue
Turning on the GC/MS interface heater and Oven using OpenLab CDS software.
Steps to Follow
From the Home tab, click Method > Instrument Setup...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900)
Issue
The signal monitor function in MassHunter can help with troubleshooting low sensitivity, carry over, contamination, or high background. It can also be used to optimize...
This Information Applies To: Agilent UV detectors (Variable Wavelength Detectors, Multiple Wavelength Detectors, and Diode Array Detectors)
Issue
Checking accumulated hours on the UV lamp.
Steps to Follow
There are four ways to check the accumulated...
This Information Applies To: Agilent 7700/7800/7850/7900/8800/8900 ICP-MS
Issue:
Poor internal standard (ISTD) mixing can cause high relative standard deviation (RSD).
The recommendations in this article are applicable if:
It takes a long...