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Results 651–660 of 1416

Practical UHPLC with ACE® 1.7 μm Phases

| Contributed by Ace

Easily convert your HPLC method using the FREE ACE Translator Tool

Reproducibility with Pyrolysis-GC-MS and Thermally Assisted Hydrolysis and Methylation

| Contributed by CDS

Reproducibility of thermal techniques is addressed using the latest version of the Pyroprobe from CDS Analytical.

Gradient Method Transfer – Aspirin and Related Substances

| Contributed by Ace

In this application we look at the importance of correcting for change in dwell volume between different systems when transferring a method.

Vanillins – Fast Analysis

| Contributed by Ace

Vanilla is a natural flavouring derived from orchids of the genus Vanilla and is one of the most widely used flavouring ingredients in foods and beverages.

UHPLC Analysis of DNPH Derivatised Carbonyl Compounds

| Contributed by Ace

Certain carbonyl compounds, such as ketones and aldehydes, are recognised as atmospheric pollutants which can be hazardous to human health.

UHPLC Analysis of St John’s Wort using Column Coupling

| Contributed by Ace

Many natural products have historically proved valuable for the treatment of a wide range of medical conditions.

Gradient Method Translation Using the ACE LC Translator

| Contributed by Ace

Translating gradient LC methods from one column dimension to another is common, but maintaining the separation selectivity and peak resolution can be challenging.

Identifying low-level odorants in wine by automated high-capacity sorptive extraction with GC–MS

| Contributed by Markes International Ltd

This study shows that immersive sorptive extraction using high-capacity HiSorb probes, can be used to screen wine for ppb levels of two yeast-derived spoilage compounds.

LC-FLD analysis of 4 PAHs in olive oil samples using AZURA® GPC Cleanup System

| Contributed by Knauer

The aim of this work is to perform the cleanup of olive oil samples before HPLC analysis by means of the AZURA GPC Cleanup System.

Automated Determination of Formaldehyde Emissions from E-Liquids by On-Sorbent Derivatization and Thermal Desorption GC/MS

| Contributed by Gerstel

A new fully automated thermal desorption (TD)- GC/MS method was developed for determination of formaldehyde and other airborne carbonyls as well as VOCs for material emission testing.

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