Hiring a third-party Quality Assurance (QA) manager instead of having one on the payroll can…
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ISO 17025 QC and Consulting
Effect of Analyte Concentration on Relative Standard Deviation (RSD) of Measurement in Analytical Chemistry: A Comparative Analysis of Statistical Models
by Stepan Reutby Stepan ReutAnalytical chemistry encompasses a wide array of techniques and methods for quantifying and characterizing chemical…
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ISO 17025 QC and ConsultingLab Tips
Precision in Semi-Quantitative Chemical Analysis: Understanding the Significance of Relative Standard Deviations above 41%
by Stepan Reutby Stepan ReutIn chemical analysis, precision plays a pivotal role in determining the dependability and consistency of…
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ISO 17025 QC and ConsultingLab Tips
How to Evaluate the Detection Limit of a Gravimetric Analysis
by Stepan Reutby Stepan ReutIn the gravimetric analysis, we compare the weight of the filter with a sample against…
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ISO 17025 QC and Consulting
ISO 17025-2017. How to comply? “Laboratory activities shall be undertaken impartially…”
by Stepan Reutby Stepan ReutISO 17025-2017. 4.1.1 “Laboratory activities shall be undertaken impartially and structured and managed so as…
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ISO 17025 QC and Consulting
How to build Laboratory Quality Control Charts in Excel (with a free template)
by Stepan Reutby Stepan ReutQuality Control (QC) Charts are used to monitor changes in laboratory accuracy and precision over…
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ISO 17025 QC and Consulting
Difference between Method Detection Limit, Quantification Limit, and Reporting Limit
by Stepan Reutby Stepan ReutEvery chemical laboratory defines the smallest concentration of an analyte that they can measure with…
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I guess it depends on how much money you need. Let’s start with my personal…
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Air Sampling
Should I specify a test method, when I submit my samples to the lab?
by Stepan Reutby Stepan ReutWhen you send your samples for analysis, you should specify the method if it is…
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Lab Startup
Do I need a license to start a laboratory business in Canada?
by Stepan Reutby Stepan ReutUsually, you do not need a license to operate a calibration or chemical testing laboratory…
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