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App Notes

Results 1171–1180 of 1444

Quantifying Picogram Concentrations of Aflatoxin M1 in Liquid Milk

| Contributed by Sigma Aldrich

A fast method for the cleanup, analysis, and quantification of aflatoxin M1 in milk samples to EU regulatory standards (0.025 μg/kg) was developed using Supel Tox AflaZea SPE and LC/MS analysis.

Automated SW solution for preparative HPLC:

| Contributed by DataApex

Application examples of Clarity software for analytical and small scale preparative separation using multivendor analytical and preparative HPLC components.

Passive monitoring of benzene and other hazardous air pollutants at refinery perimeters in accordance with US EPA Method 325

This application note will help you make sense of the requirements of the new Method 325 for monitoring refinery fenceline air, by describing a simple stepwise approach to sampling and analysing air samples that complies fully with the new method.

Extraction and Quantification of Parabens from Baby Wash and Shampoo Using Novum™ Simplified Liquid Extraction (SLE) and LC/UV

| Contributed by Phenomenex

In this technical note we describe a simple extraction procedure to quantitate four of the most commonly used parabens from baby wash using Novum Simplified Liquid Extraction (SLE) products in conjunction with a Kinetex® EVO C18 5 μm core-shell HPLC column.

Acrylamide from Coffee using Novum™ Simplified Liquid Extraction (SLE) Tubes and a Synergi™ Hydro-RP HPLC Column

| Contributed by Phenomenex

This technical note will investigate an application with implications for the food safety industry using Novum SLE to clean up and extract acrylamide from both instant and brewed coffee.

Extraction of 25-OH-Vitamin D2 and D3 from Serum by Novum™ Simplified Liquid Extraction (SLE) and LC/MS/MS Analysis using a Kinetex® 2.6 μm F5 HPLC/UHPLC Column

| Contributed by Phenomenex

The aim of this application note is to introduce a fast and effective sample preparation technique using Novum Simplified Liquid Extraction (SLE) products

Automated Extraction of Isomeric Cortisone and Prednisolone from Plasma using Novum™ Simplified Liquid Extraction (SLE)

| Contributed by Phenomenex

Corticosteroids exhibit anti-inflammatory properties and are widely abused within the sports industry.

Extraction of Total Cortisol from Human Plasma Using Novum™ Simplified Liquid Extraction (SLE) 96-Well Plates

| Contributed by Phenomenex

Existing methods for cortisol analysis are very diverse. This study focuses on developing an optimized sample preparation procedure for cortisol from plasma.

Extraction of Corticosteroids from Plasma using Novum Simplified Liquid Extraction (SLE)

| Contributed by Phenomenex

Corticosteroids are a class of steroid hormones that are widely studied due to their involvement in a variety of physiological processes. The aim of this application note is to introduce a fast and effective sample preparation technique using Novum Simplified Liquid Extraction (SLE) products that results in acceptable recoveries of 7 corticosteroids from plasma.

A Fast and Robust HPLC Separation of Bile Acids and Their Conjugates with Ascentis Express C18

| Contributed by Sigma Aldrich

Helping to Elucidate the Role of Plasma Bile Acid Signalling in Humans

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