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Talking about a Double Beam UV-Vis spectrophotometer: I have always placed water in a cuvette to zero the instrument. (Question 1 Please tell if there are cases in wich it has to be done different) I have always setted up the baseline correction, and to run the baseline, I place a cuvette with all except the analyte, for example if my… Show more
My lab runs D4815 on a 7890 using Open Lab CDS and I noticed a discrepancy between our method and what is described in ASTM D4815 in regards to the sample amount. Internally, it looks like our techs measure 0.5ml of internal standard into a 10ml flask, record the mass, then fill to volume with sample and record the overall mass of sample + ISTD. … Show more
ryoboyle 
(to jherpel) 2 days ago (Show moreShow less)
(to jherpel) 2 days ago (Show moreShow less)Hello, I cannot weigh in on your methodology, but here is a link to the Reference to Operation Principles guide for OpenLab CDS ChemStation: https://www.agilent.com/cs/library/usermanuals/public/CDS_CS-references.pdf The section outlining the math of the ISTD calculations begins on page 92. Please let us know if you have any questions.
Hello !!! Is there a possibility to report peak purity with intelligent reporting? I have not been successful looking for the option in report elements. Regards,
New Webinars Series available: GC and GC/MS Webinar Series - Whether you are a seasoned GC veteran or a beginner, this GC Webinar series will help to make you a better chromatographer so you get the reproducible results you need to make your lab more productive. Click on the link below to learn more and register for this series:…
New Webinars Series available: Atomic Spectroscopy Webinar Series - Learn how Agilent’s latest atomic spectroscopy products and applications can help your lab be more productive and run more efficiently. Keep your instruments up and running longer with helpful tips for troubleshooting and routine maintenance. Click on the link below to learn…
Hello! I am using OpenLAB ChemStation CDS, version C.01.08 and I have 2 questions regarding intelligent reporting: In the intelligent report I am trying to customize I have a column with Peak_AreaPercent and at the bottom I have their Sum. Sometimes the sum doesn't equal 100, sometimes it's 99.88 etc. Why is it like this and how can it be… Show more
Hello, I added tags to this post to increase visibility. For your first question, my guess would be that there is an uncalibrated peak that is getting integrated which is not being displayed in your results table. To check this, right click on the table and select properties. In the properties window go to the Peaks and Repeating tab and…
New Webinars Series available: Molecular Spectroscopy Webinar Series - New UV-Vis, fluorescence, FTIR bench & microscope, and handheld & portable FTIR solutions help you get your answers faster and easier than ever before. Agilent has developed several new molecular spectroscopy solutions to meet the ever increasing need for higher performing,…
New Webinars Series available: LC & LC/MS Column Webinar Series - Whether you are a seasoned LC veteran or a beginner, this LC Webinar series will help to make you a better chromatographer so you get the reproducible results you need to make your lab more productive. Click on the link below to learn more and register for this series:…
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New Webinars Series available: Chromatography and Mass Spec Educational Webinar Series - Agilent invites you to join our live Chromatography and Mass Spec Educational Seminar Series. Agilent Application Scientists will cover a number of different topics, showcasing application-specific workflows to enhance your analytical needs. These live…
The recording is now available for the Explaining the Deans Switch and Its Use for the Analysis of Oxygenates and Permanent Gases presentation of this series. Recording: https://agilenteseminar.webex.com/agilenteseminar/lsr.php?RCID=d1ed8b6b06c48a6b686561705bb8fc3d The recording is now available for the PFAS Analysis with the Ultivo…
gchaplain has generously helped answer many questions with his expert knowledge. We are proud to recognize him as our first Community Champion.
