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App Notes

Results 851–860 of 1444

Fields & Applications Environmental

How good is on-line zetapotential measurement in water treatment?

| Contributed by Malvern Panalytical

Use at Aurora Water demonstrates feasibility, reduces chemical coagulant usage about 17 percent

Fields & Applications Forensics

Analysis of Fentanyl and Designer Fentanyl Derivatives in Urine using SPE and HPLC-MS/MS

| Contributed by UCT

Presented is a rapid, three step SPE procedure, that includes a concentration step, for the identification and quantification of fentanyl and its major urinary metabolite norfentanyl.

Fields & Applications Pharma & Biopharma

Chemical Characterization of Pharmaceutical Samples by Confocal Raman Microscopy and Correlative Techniques

| Contributed by WITec GmbH

Based on various samples the article will demonstrate how CRM can be beneficially applied in the pharmaceutical field.

Techniques & Tools Liquid Chromatography

Simulated Moving Bed (SMB) – A Powerful Tool for Continuous Purification of Xylitol

| Contributed by Knauer

Simulated moving bed chromatography (SMBC) was applied for the purification of xylitol from fermentation mash of a fed batch culture.

Techniques & Tools Gas Chromatography

Tackling the extended list of fragrance allergens by flow-modulated GC×GC–TOF MS/FID

| Contributed by SepSolve Analytical

This preliminary study investigates the use of flow-modulated GC×GC to analyse an 84-component allergen calibration standard, with simultaneous detection by TOF MS for confident identification and FID for robust quantitation.

Fields & Applications Environmental

Highly efficient monitoring of VOCs in stack emissions using sorbent tubes analysed by TD–GC–MS in accordance with European standard method CEN/TS 13649

| Contributed by Markes International Ltd

This Application Note demonstrates that Markes International’s automated thermal desorption systems offer excellent results for monitoring volatile organic compounds (VOCs) in stationary source emissions in accordance with the updated version of the European standard method CEN/TS 13649 released in 2014.

Fields & Applications Pharma & Biopharma

Near-infrared spectroscopy in compliance with pharma regulations

| Contributed by Metrohm

Near-infrared spectroscopy is recognized by common pharmacopoeias as a secondary method for a fast and reliable, non-destructive analysis in pharmaceutical manufacturing.

Techniques & Tools Data Analysis

Looking Beyond Analytical Data Standardization—the Fourth Paradigm

| Contributed by ACD Labs

Chemical R&D activities continue to generate a deluge of instrumental analytical data on a daily basis, regardless of industry.

Techniques & Tools Technology

Micro-Chamber/Thermal Extractor

| Contributed by Markes International Ltd

Fast & flexible sampling of chemicals and odours

Fields & Applications Pharma & Biopharma

Protein Molecular Weight Determination: SECMALS vs Conventional Calibration

| Contributed by Malvern Panalytical

Multi-Angle Light Scattering - Absolute Molecular Mass and Size

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