Irina Oshchepkova
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Articles
Recent activity by Irina Oshchepkova-
LC Simulator: using “Number of Steps” and “Run Count” values for enhanced Model robustness
DescriptionLC Simulator can suggest a minimum number of experiments needed for modeling (for example, for gradient optimization). However, this minimum guarantees only that the model can be built m...
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Spectrus Processor: How to connect to Waters UNIFI using “Connect To”
DescriptionThe Connect To function for Waters UNIFI requires authentication and server details. The connection is made through the UNIFI web API, not directly to the database, which addresses conce...
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AutoChrom: Using software in a validated environment (general guidance)
DescriptionIn environments where instruments and chromatography data systems are fully validated, AutoChrom is often used on separate, non‑instrument PCs. IT or validation groups may perform their ...
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LC Simulator: Modes Manager: “Approximation” vs. “Spline” and required run count
DescriptionIn Modes Manager (for example, Gradient Optimization), some models use polynomial approximation (e.g., quadratic: ln k' = a + bx + cx²), while others use spline models. The “Requires … r...
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LC Simulator: Meaning of “Flow Rate” fields and how t₀ is calculated
DescriptionIn LC Simulator there are two separate flow rate fields:“At a Flow Rate of” (in Column Parameters): flow rate used when the Observed t₀ and Observed Pressure values were measured.“Consta...
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AutoChrom: Supported CDS Configuration and Requirements
DescriptionUsers often need to know which Chromatography Data System (CDS) versions and configuration work with AutoChrom Online.For details, please refer to Automated (QbD) Method Development Soft...
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ChromGenius: Molecules with No Estimated tR Values
DescriptionWhen running Estimate Prediction Accuracy in ChromGenius, some molecules may appear in gray, with no estimated retention time (tR) values. This indicates that the software was unable to ...
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Spectrus: Column Selection, Column Comparison, and LC Method Transfer Assistant are missing from the Tools menu.
DescriptionQbD tools are not accessible from Tools menu in Spectrus Processor LC Method Transfer Assistant LC Columns Comparison LC Columns Selection After installation, users do not see these QbD ...
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Empower Add-on: Interface Registration Issue
DescriptionWhen launching the Addon from the Application menu within Empower, the ‘Interface is not registered’ error appears. Registration of the required interfaces may have been disrupted, often...
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Spectrus: Cannot import Agilent 6000 and Bruker Compass data in *.D format
DescriptionThis article will teach you how to set up the required libraries and options to ensure the Agilent LCMS 6000 and Bruker CompassXtract import filters work properly.SolutionEnsure that .NE...