Knowledge Base
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![[Readers Insight] The Starting Point in Method Development](//www.welch-us.com/cdn/shop/articles/starting-point-1080-822_66049d9e-9b96-49f0-b38f-d3efbb05bbb0_535x.jpg?v=1773718422)
![[Readers Insight] The Starting Point in Method Development](//www.welch-us.com/cdn/shop/articles/starting-point-1080-822_66049d9e-9b96-49f0-b38f-d3efbb05bbb0_345x345@2x.jpg?v=1773718422)
[Readers Insight] The Starting Point in Method Development
Method development often begins with uncertainty—especially when faced with unknown compounds and no literature guidance. This article examines a pharmacopoeial method as a case study, highlighting its chromatographic settings, analyzing potential limitations, and considering improvements. Through this, readers gain insight into the logical framework behind choosing starting conditions. -
![[Readers Insight] Are You Choosing the Right Quantifier Ion for Mass Spectrometry?](//www.welch-us.com/cdn/shop/articles/quantifier-ion-1080-815_535x.jpg?v=1773718320)
![[Readers Insight] Are You Choosing the Right Quantifier Ion for Mass Spectrometry?](//www.welch-us.com/cdn/shop/articles/quantifier-ion-1080-815_345x345@2x.jpg?v=1773718320)
[Readers Insight] Are You Choosing the Right Quantifier Ion for Mass Spectrometry?
In this article, the author discusses the principles behind selecting quantifier ions in triple quadrupole mass spectrometry, with a case study to illustrate how ion choice impacts sensitivity and accuracy. -
![[Readers Insight] Become an “Engineer”, Instead of an “Inspector”](//www.welch-us.com/cdn/shop/articles/engineer-1080-815_86849ee0-0b0f-42aa-bbc0-466b0754ef77_535x.jpg?v=1760000922)
![[Readers Insight] Become an “Engineer”, Instead of an “Inspector”](//www.welch-us.com/cdn/shop/articles/engineer-1080-815_86849ee0-0b0f-42aa-bbc0-466b0754ef77_345x345@2x.jpg?v=1760000922)
[Readers Insight] Become an “Engineer”, Instead of an “Inspector”
In this article, we dive into a lab analyst's journey from routine tester to engineer. It emphasizes asking “why”, seeking mentorship, designing experiments, iterative troubleshooting, and developing chromatographic expertise through persistent method development. The narrative offers practical encouragement for analysts aiming to deepen theoretical understanding, solve complex problems, and advance professionally. -
![[Readers Insight] Why Do M-Shaped Peaks Occur?](//www.welch-us.com/cdn/shop/articles/m-peak-1080-814_535x.webp?v=1773651099)
![[Readers Insight] Why Do M-Shaped Peaks Occur?](//www.welch-us.com/cdn/shop/articles/m-peak-1080-814_345x345@2x.webp?v=1773651099)
[Readers Insight] Why Do M-Shaped Peaks Occur?
M-shaped peaks can puzzle even experienced chromatographers, appearing unexpectedly and resisting simple fixes. This article draws on expert insights to explore their possible origins and practical approaches, guiding analysts toward more reliable and consistent chromatographic results. -
![[Readers Insight] Stop Being a Lab Robot: Mastering National Standards in HPLC Analysis](//www.welch-us.com/cdn/shop/articles/lab-robot-1080_535x.webp?v=1773652470)
![[Readers Insight] Stop Being a Lab Robot: Mastering National Standards in HPLC Analysis](//www.welch-us.com/cdn/shop/articles/lab-robot-1080_345x345@2x.webp?v=1773652470)
[Readers Insight] Stop Being a Lab Robot: Mastering National Standards in HPLC Analysis
Executing HPLC methods mechanically limits your potential as a chromatographer. This article breaks down an example method to show how understanding analyte chemistry, matrix effects, and solvent roles empowers you to troubleshoot and optimize, not just follow. -
![[Readers Insight] How to Quickly Establish Robust HPLC Analytical Methods: A 5-Step Expert Guide](//www.welch-us.com/cdn/shop/articles/webp_535x.webp?v=1773652322)
![[Readers Insight] How to Quickly Establish Robust HPLC Analytical Methods: A 5-Step Expert Guide](//www.welch-us.com/cdn/shop/articles/webp_345x345@2x.webp?v=1773652322)
[Readers Insight] How to Quickly Establish Robust HPLC Analytical Methods: A 5-Step Expert Guide
This practical article guides new chromatographers through five essential steps to build robust HPLC methods: structural analysis, solvent selection, signal enhancement, elution optimization, and method validation. -
![[Readers Insight] Pursuing Excellence in Pharmaceutical Quality Control: Best Practices and Insights for Laboratories](//www.welch-us.com/cdn/shop/articles/customer-insigh_43ccb207-65ea-4941-9000-8f9f08c0158c_535x.webp?v=1773652291)
![[Readers Insight] Pursuing Excellence in Pharmaceutical Quality Control: Best Practices and Insights for Laboratories](//www.welch-us.com/cdn/shop/articles/customer-insigh_43ccb207-65ea-4941-9000-8f9f08c0158c_345x345@2x.webp?v=1773652291)
[Readers Insight] Pursuing Excellence in Pharmaceutical Quality Control: Best Practices and Insights for Laboratories
In this article, one of Welch’s long-term customer shares their practices and insights on pharmaceutical laboratory quality control in both HPLC and GC, along with their firsthand experience of Welch’s HPLC columns. -
![[Readers Insight] Why “Peak Area” is Used for Quantification in Chromatography](//www.welch-us.com/cdn/shop/articles/1080-peak-area_f6678897-c590-421a-8ec7-2e3575daa4fd_535x.webp?v=1773652231)
![[Readers Insight] Why “Peak Area” is Used for Quantification in Chromatography](//www.welch-us.com/cdn/shop/articles/1080-peak-area_f6678897-c590-421a-8ec7-2e3575daa4fd_345x345@2x.webp?v=1773652231)
[Readers Insight] Why “Peak Area” is Used for Quantification in Chromatography
Peak area is the preferred metric for quantification in chromatography due to its consistency across variable peak shapes and resistance to signal distortion. Unlike peak height or volume, it offers reliable integration even with minor peak deformation or interference, making it the most robust choice in routine analysis. -
![[Readers Insight] Chromatographic Separation Strategies for Multi-Component Analysis](//www.welch-us.com/cdn/shop/articles/1080-multi-component_535x.jpg?v=1773651844)
![[Readers Insight] Chromatographic Separation Strategies for Multi-Component Analysis](//www.welch-us.com/cdn/shop/articles/1080-multi-component_345x345@2x.jpg?v=1773651844)
[Readers Insight] Chromatographic Separation Strategies for Multi-Component Analysis
Mass spectrometry simplifies multi-component analysis, but chromatographic separation remains essential for challenging cases. This article explores enhancements in gradient elution, column selection, temperature, flow rate, and mobile phase composition for separation efficiency and resolution. -
![[Reader Insight] Optimizing Matrix Curve Quantification in Mass Spectrometry](//www.welch-us.com/cdn/shop/articles/quantification-1080-1220_535x.webp?v=1773651723)
![[Reader Insight] Optimizing Matrix Curve Quantification in Mass Spectrometry](//www.welch-us.com/cdn/shop/articles/quantification-1080-1220_345x345@2x.webp?v=1773651723)
[Reader Insight] Optimizing Matrix Curve Quantification in Mass Spectrometry
In this article, the author explains matrix curve quantification in mass spectrometry, and offers strategies to minimize matrix effects and enhance accurate quantification. -
![[Reader Insight] Introduction to Common Derivatization Methods and Application Examples](//www.welch-us.com/cdn/shop/articles/derivatization-method-1080-1212_98598333-a7c7-4731-bd30-b2fa5c10a067_345x345@2x.webp?v=1773651629)
[Reader Insight] Introduction to Common Derivatization Methods and Application Examples
This article explores key derivatization methods like methylation, amidation, and esterification, highlighting their principles, applications, and optimization strategies. -
![[Reader Insight] Why Are Chromatograms](//www.welch-us.com/cdn/shop/articles/peak-shaped-1080_535x.webp?v=1773651546)
![[Reader Insight] Why Are Chromatograms "Peak"-Shaped: A Guide for New Laboratory Analysts](//www.welch-us.com/cdn/shop/articles/peak-shaped-1080_345x345@2x.webp?v=1773651546)
[Reader Insight] Why Are Chromatograms "Peak"-Shaped: A Guide for New Laboratory Analysts
Learn why chromatograms have the shape of peaks, understand their formation and what they reveal about analyte distribution and column efficiency.
![[Readers Insight] The Starting Point in Method Development](http://www.welch-us.com/cdn/shop/articles/starting-point-1080-822_66049d9e-9b96-49f0-b38f-d3efbb05bbb0_535x.jpg?v=1773718422)
![[Readers Insight] The Starting Point in Method Development](http://www.welch-us.com/cdn/shop/articles/starting-point-1080-822_66049d9e-9b96-49f0-b38f-d3efbb05bbb0_345x345@2x.jpg?v=1773718422)
![[Readers Insight] Are You Choosing the Right Quantifier Ion for Mass Spectrometry?](http://www.welch-us.com/cdn/shop/articles/quantifier-ion-1080-815_535x.jpg?v=1773718320)
![[Readers Insight] Are You Choosing the Right Quantifier Ion for Mass Spectrometry?](http://www.welch-us.com/cdn/shop/articles/quantifier-ion-1080-815_345x345@2x.jpg?v=1773718320)
![[Readers Insight] Become an “Engineer”, Instead of an “Inspector”](http://www.welch-us.com/cdn/shop/articles/engineer-1080-815_86849ee0-0b0f-42aa-bbc0-466b0754ef77_535x.jpg?v=1760000922)
![[Readers Insight] Become an “Engineer”, Instead of an “Inspector”](http://www.welch-us.com/cdn/shop/articles/engineer-1080-815_86849ee0-0b0f-42aa-bbc0-466b0754ef77_345x345@2x.jpg?v=1760000922)
![[Readers Insight] Why Do M-Shaped Peaks Occur?](http://www.welch-us.com/cdn/shop/articles/m-peak-1080-814_535x.webp?v=1773651099)
![[Readers Insight] Why Do M-Shaped Peaks Occur?](http://www.welch-us.com/cdn/shop/articles/m-peak-1080-814_345x345@2x.webp?v=1773651099)
![[Readers Insight] Stop Being a Lab Robot: Mastering National Standards in HPLC Analysis](http://www.welch-us.com/cdn/shop/articles/lab-robot-1080_535x.webp?v=1773652470)
![[Readers Insight] Stop Being a Lab Robot: Mastering National Standards in HPLC Analysis](http://www.welch-us.com/cdn/shop/articles/lab-robot-1080_345x345@2x.webp?v=1773652470)
![[Readers Insight] How to Quickly Establish Robust HPLC Analytical Methods: A 5-Step Expert Guide](http://www.welch-us.com/cdn/shop/articles/webp_535x.webp?v=1773652322)
![[Readers Insight] How to Quickly Establish Robust HPLC Analytical Methods: A 5-Step Expert Guide](http://www.welch-us.com/cdn/shop/articles/webp_345x345@2x.webp?v=1773652322)
![[Readers Insight] Pursuing Excellence in Pharmaceutical Quality Control: Best Practices and Insights for Laboratories](http://www.welch-us.com/cdn/shop/articles/customer-insigh_43ccb207-65ea-4941-9000-8f9f08c0158c_535x.webp?v=1773652291)
![[Readers Insight] Pursuing Excellence in Pharmaceutical Quality Control: Best Practices and Insights for Laboratories](http://www.welch-us.com/cdn/shop/articles/customer-insigh_43ccb207-65ea-4941-9000-8f9f08c0158c_345x345@2x.webp?v=1773652291)
![[Readers Insight] Why “Peak Area” is Used for Quantification in Chromatography](http://www.welch-us.com/cdn/shop/articles/1080-peak-area_f6678897-c590-421a-8ec7-2e3575daa4fd_535x.webp?v=1773652231)
![[Readers Insight] Why “Peak Area” is Used for Quantification in Chromatography](http://www.welch-us.com/cdn/shop/articles/1080-peak-area_f6678897-c590-421a-8ec7-2e3575daa4fd_345x345@2x.webp?v=1773652231)
![[Readers Insight] Chromatographic Separation Strategies for Multi-Component Analysis](http://www.welch-us.com/cdn/shop/articles/1080-multi-component_535x.jpg?v=1773651844)
![[Readers Insight] Chromatographic Separation Strategies for Multi-Component Analysis](http://www.welch-us.com/cdn/shop/articles/1080-multi-component_345x345@2x.jpg?v=1773651844)
![[Reader Insight] Optimizing Matrix Curve Quantification in Mass Spectrometry](http://www.welch-us.com/cdn/shop/articles/quantification-1080-1220_535x.webp?v=1773651723)
![[Reader Insight] Optimizing Matrix Curve Quantification in Mass Spectrometry](http://www.welch-us.com/cdn/shop/articles/quantification-1080-1220_345x345@2x.webp?v=1773651723)
![[Reader Insight] Introduction to Common Derivatization Methods and Application Examples](http://www.welch-us.com/cdn/shop/articles/derivatization-method-1080-1212_98598333-a7c7-4731-bd30-b2fa5c10a067_345x345@2x.webp?v=1773651629)
![[Reader Insight] Why Are Chromatograms](http://www.welch-us.com/cdn/shop/articles/peak-shaped-1080_535x.webp?v=1773651546)
![[Reader Insight] Why Are Chromatograms "Peak"-Shaped: A Guide for New Laboratory Analysts](http://www.welch-us.com/cdn/shop/articles/peak-shaped-1080_345x345@2x.webp?v=1773651546)